diff --git a/README.md b/README.md index ccf7280..54b7981 100644 --- a/README.md +++ b/README.md @@ -1,17 +1,17 @@ quaggaJS ======== -- [Changelog](#changelog) (2015-07-08) +- [Changelog](#changelog) (2015-08-13) ## What is QuaggaJS? QuaggaJS is a barcode-scanner entirely written in JavaScript supporting real- time localization and decoding of various types of barcodes such as __EAN__, -__CODE 128__, __CODE 39__, __EAN 8__, __UPC-A__, __UPC-C__ and __CODABAR__. -The library is also capable of using `getUserMedia` to get direct access to -the user's camera stream. Although the code relies on heavy image-processing -even recent smartphones are capable of locating and decoding barcodes in -real-time. +__CODE 128__, __CODE 39__, __EAN 8__, __UPC-A__, __UPC-C__, __I2of5__ and +__CODABAR__. The library is also capable of using `getUserMedia` to get direct +access to the user's camera stream. Although the code relies on heavy image- +processing even recent smartphones are capable of locating and decoding +barcodes in real-time. Try some [examples](http://serratus.github.io/quaggaJS/examples) and check out the blog post ([How barcode-localization works in QuaggaJS][oberhofer_co_how]) @@ -141,6 +141,16 @@ In contrast to the calls described above, this method does not rely on `getUserMedia` and operates on a single image instead. The provided callback is the same as in `onDetected` and contains the result `data` object. +### Quagga.offProcessed(handler) + +In case the `onProcessed` event is no longer relevant, `offProcessed` removes +the given `handler` from the event-queue. + +### Quagga.offDetected(handler) + +In case the `onDetected` event is no longer relevant, `offDetected` removes +the given `handler` from the event-queue. + ## The result object The callbacks passed into `onProcessed`, `onDetected` and `decodeSingle` @@ -367,6 +377,15 @@ on the ``singleChannel`` flag in the configuration when using ``decodeSingle``. ## Changelog +### 2015-08-13 +- Improvements + - Added `offProcessed` and `offDetected` methods for detaching event- + listeners from the event-queue. + +### 2015-07-29 +- Features + - Added basic support for [ITF][i2of5_wiki] barcodes (`i2of5_reader`) + ### 2015-07-08 - Improvements - Parameter tweaking to reduce false-positives significantly (for the @@ -479,3 +498,4 @@ introduced to the API. [ean_8_wiki]: http://en.wikipedia.org/wiki/EAN-8 [oberhofer_co_how]: http://www.oberhofer.co/how-barcode-localization-works-in-quaggajs/ [github_examples]: http://serratus.github.io/quaggaJS/examples +[i2of5_wiki]: https://en.wikipedia.org/wiki/Interleaved_2_of_5 diff --git a/bower.json b/bower.json new file mode 100644 index 0000000..e563ced --- /dev/null +++ b/bower.json @@ -0,0 +1,68 @@ +{ + "name": "quagga", + "version": "0.6.14", + "description": "An advanced barcode-scanner written in JavaScript", + "main": "dist/quagga.js", + "ignore": [ + "build", + "doc", + "spec", + "src", + "tasks", + "test", + ".gitignore", + ".npmignore", + "Gruntfile.js", + "karma-integration.conf.js", + "karma.conf.js", + "package.json", + "test-main.js" + ], + "devDependencies": { + "async": "^0.9.0", + "grunt": "~0.4.5", + "grunt-contrib-jshint": "~0.10.0", + "grunt-contrib-nodeunit": "~0.4.1", + "grunt-contrib-uglify": "~0.5.0", + "grunt-karma": "^0.9.0", + "grunt-requirejs": "^0.4.2", + "karma": "latest", + "karma-chai": "latest", + "karma-chrome-launcher": "^0.1.12", + "karma-coverage": "^0.3.1", + "karma-mocha": "latest", + "karma-phantomjs-launcher": "^0.1.4", + "karma-requirejs": "^0.2.2", + "karma-sinon": "^1.0.4", + "karma-sinon-chai": "^0.2.0", + "sinon": "^1.12.1" + }, + "directories": { + "doc": "doc" + }, + "scripts": { + "test": "karma start" + }, + "repository": { + "type": "git", + "url": "https://github.com/serratus/quaggaJS.git" + }, + "bugs": { + "url": "https://github.com/serratus/quaggaJS/issues" + }, + "keywords": [ + "quagga", + "quaggajs", + "barcode", + "ean", + "code128", + "code39", + "codabar", + "i2of5", + "upc", + "getusermedia", + "imageprocessing" + ], + "author": "Christoph Oberhofer ", + "license": "MIT" +} diff --git a/dist/quagga.js b/dist/quagga.js index a2db04c..95f9cb4 100644 --- a/dist/quagga.js +++ b/dist/quagga.js @@ -435,1356 +435,931 @@ define("almond", function(){}); /* jshint undef: true, unused: true, browser:true, devel: true */ /* global define */ -define( - 'barcode_reader',[],function() { - "use strict"; - - function BarcodeReader() { - this._row = []; - return this; - } - - BarcodeReader.prototype._nextUnset = function(line, start) { - var i; +define('image_loader',[],function() { + "use strict"; + + var ImageLoader = {}; + ImageLoader.load = function(directory, callback, offset, size, sequence) { + var htmlImagesSrcArray = new Array(size), + htmlImagesArray = new Array(htmlImagesSrcArray.length), + i, + img, + num; - if (start === undefined) { - start = 0; + if (sequence === false) { + htmlImagesSrcArray[0] = directory; + } else { + for ( i = 0; i < htmlImagesSrcArray.length; i++) { + num = (offset + i); + htmlImagesSrcArray[i] = directory + "image-" + ("00" + num).slice(-3) + ".jpg"; } - for (i = start; i < line.length; i++) { - if (!line[i]) { - return i; + } + htmlImagesArray.notLoaded = []; + htmlImagesArray.addImage = function(img) { + htmlImagesArray.notLoaded.push(img); + }; + htmlImagesArray.loaded = function(loadedImg) { + var notloadedImgs = htmlImagesArray.notLoaded; + for (var x = 0; x < notloadedImgs.length; x++) { + if (notloadedImgs[x] == loadedImg) { + notloadedImgs.splice(x, 1); + for (var y = 0; y < htmlImagesSrcArray.length; y++) { + var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf("/")); + if (loadedImg.src.lastIndexOf(imgName) != -1) { + htmlImagesArray[y] = loadedImg; + break; + } + } + break; } } - return line.length; + if (notloadedImgs.length === 0) { + console.log("Images loaded"); + callback.apply(null, [htmlImagesArray]); + } }; - BarcodeReader.prototype._matchPattern = function(counter, code) { - var i, - error = 0, - singleError = 0, - modulo = this.MODULO, - maxSingleError = this.SINGLE_CODE_ERROR || 1; - - for (i = 0; i < counter.length; i++) { - singleError = Math.abs(code[i] - counter[i]); - if (singleError > maxSingleError) { - return Number.MAX_VALUE; - } - error += singleError; - } - return error/modulo; + for ( i = 0; i < htmlImagesSrcArray.length; i++) { + img = new Image(); + htmlImagesArray.addImage(img); + addOnloadHandler(img, htmlImagesArray); + img.src = htmlImagesSrcArray[i]; + } + }; + + function addOnloadHandler(img, htmlImagesArray) { + img.onload = function() { + htmlImagesArray.loaded(this); }; + } - BarcodeReader.prototype._nextSet = function(line, offset) { - var i; + return (ImageLoader); +}); - offset = offset || 0; - for (i = offset; i < line.length; i++) { - if (line[i]) { - return i; - } - } - return line.length; - }; +/* jshint undef: true, unused: true, browser:true, devel: true */ +/* global define */ - BarcodeReader.prototype._normalize = function(counter, modulo) { - var i, - self = this, - sum = 0, - ratio, - numOnes = 0, - normalized = [], - norm = 0; - - if (!modulo) { - modulo = self.MODULO; - } - for (i = 0; i < counter.length; i++) { - if (counter[i] === 1) { - numOnes++; - } else { - sum += counter[i]; - } - } - ratio = sum / (modulo - numOnes); - if (ratio > 1.0) { - for (i = 0; i < counter.length; i++) { - norm = counter[i] === 1 ? counter[i] : counter[i] / ratio; - normalized.push(norm); - } - } else { - ratio = (sum + numOnes)/modulo; - for (i = 0; i < counter.length; i++) { - norm = counter[i] / ratio; - normalized.push(norm); - } - } - return normalized; - }; +define('input_stream',["image_loader"], function(ImageLoader) { + "use strict"; - BarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) { - var counter = [], - i, - self = this, - offset = self._nextSet(self._row), - isWhite = !self._row[offset], - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0 - }, - error; + var InputStream = {}; + InputStream.createVideoStream = function(video) { + var that = {}, + _config = null, + _eventNames = ['canrecord', 'ended'], + _eventHandlers = {}, + _calculatedWidth, + _calculatedHeight, + _topRight = {x: 0, y: 0}, + _canvasSize = {x: 0, y: 0}; - if (cmpCounter) { - for ( i = 0; i < cmpCounter.length; i++) { - counter.push(0); - } - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - error = self._matchPattern(counter, cmpCounter); + function initSize() { + var width = video.videoWidth, + height = video.videoHeight; - if (error < epsilon) { - bestMatch.start = i - offset; - bestMatch.end = i; - bestMatch.counter = counter; - return bestMatch; - } else { - return null; - } - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - } else { - counter.push(0); - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - counterPos++; - counter.push(0); - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - } + _calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; + _calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; - // if cmpCounter was not given - bestMatch.start = offset; - bestMatch.end = self._row.length - 1; - bestMatch.counter = counter; - return bestMatch; - }; - - BarcodeReader.prototype.decodePattern = function(pattern) { - var self = this, - result; - - self._row = pattern; - result = self._decode(); - if (result === null) { - self._row.reverse(); - result = self._decode(); - if (result) { - result.direction = BarcodeReader.DIRECTION.REVERSE; - result.start = self._row.length - result.start; - result.end = self._row.length - result.end; - } - } else { - result.direction = BarcodeReader.DIRECTION.FORWARD; - } - if (result) { - result.format = self.FORMAT; - } - return result; + _canvasSize.x = _calculatedWidth; + _canvasSize.y = _calculatedHeight; + } + + that.getRealWidth = function() { + return video.videoWidth; }; - BarcodeReader.prototype._matchRange = function(start, end, value) { - var i; + that.getRealHeight = function() { + return video.videoHeight; + }; - start = start < 0 ? 0 : start; - for (i = start; i < end; i++) { - if (this._row[i] !== value) { - return false; - } - } - return true; + that.getWidth = function() { + return _calculatedWidth; }; - Object.defineProperty(BarcodeReader.prototype, "FORMAT", { - value: 'unknown', - writeable: false - }); - - BarcodeReader.DIRECTION = { - FORWARD : 1, - REVERSE : -1 + that.getHeight = function() { + return _calculatedHeight; }; - - BarcodeReader.Exception = { - StartNotFoundException : "Start-Info was not found!", - CodeNotFoundException : "Code could not be found!", - PatternNotFoundException : "Pattern could not be found!" + + that.setWidth = function(width) { + _calculatedWidth = width; }; - - return (BarcodeReader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ + that.setHeight = function(height) { + _calculatedHeight = height; + }; -define( - 'code_128_reader',[ - "./barcode_reader" - ], - function(BarcodeReader) { - "use strict"; - - function Code128Reader() { - BarcodeReader.call(this); - } - - var properties = { - CODE_SHIFT : {value: 98}, - CODE_C : {value: 99}, - CODE_B : {value: 100}, - CODE_A : {value: 101}, - START_CODE_A : {value: 103}, - START_CODE_B : {value: 104}, - START_CODE_C : {value: 105}, - STOP_CODE : {value: 106}, - MODULO : {value: 11}, - CODE_PATTERN : {value: [ - [2, 1, 2, 2, 2, 2], - [2, 2, 2, 1, 2, 2], - [2, 2, 2, 2, 2, 1], - [1, 2, 1, 2, 2, 3], - [1, 2, 1, 3, 2, 2], - [1, 3, 1, 2, 2, 2], - [1, 2, 2, 2, 1, 3], - [1, 2, 2, 3, 1, 2], - [1, 3, 2, 2, 1, 2], - [2, 2, 1, 2, 1, 3], - [2, 2, 1, 3, 1, 2], - [2, 3, 1, 2, 1, 2], - [1, 1, 2, 2, 3, 2], - [1, 2, 2, 1, 3, 2], - [1, 2, 2, 2, 3, 1], - [1, 1, 3, 2, 2, 2], - [1, 2, 3, 1, 2, 2], - [1, 2, 3, 2, 2, 1], - [2, 2, 3, 2, 1, 1], - [2, 2, 1, 1, 3, 2], - [2, 2, 1, 2, 3, 1], - [2, 1, 3, 2, 1, 2], - [2, 2, 3, 1, 1, 2], - [3, 1, 2, 1, 3, 1], - [3, 1, 1, 2, 2, 2], - [3, 2, 1, 1, 2, 2], - [3, 2, 1, 2, 2, 1], - [3, 1, 2, 2, 1, 2], - [3, 2, 2, 1, 1, 2], - [3, 2, 2, 2, 1, 1], - [2, 1, 2, 1, 2, 3], - [2, 1, 2, 3, 2, 1], - [2, 3, 2, 1, 2, 1], - [1, 1, 1, 3, 2, 3], - [1, 3, 1, 1, 2, 3], - [1, 3, 1, 3, 2, 1], - [1, 1, 2, 3, 1, 3], - [1, 3, 2, 1, 1, 3], - [1, 3, 2, 3, 1, 1], - [2, 1, 1, 3, 1, 3], - [2, 3, 1, 1, 1, 3], - [2, 3, 1, 3, 1, 1], - [1, 1, 2, 1, 3, 3], - [1, 1, 2, 3, 3, 1], - [1, 3, 2, 1, 3, 1], - [1, 1, 3, 1, 2, 3], - [1, 1, 3, 3, 2, 1], - [1, 3, 3, 1, 2, 1], - [3, 1, 3, 1, 2, 1], - [2, 1, 1, 3, 3, 1], - [2, 3, 1, 1, 3, 1], - [2, 1, 3, 1, 1, 3], - [2, 1, 3, 3, 1, 1], - [2, 1, 3, 1, 3, 1], - [3, 1, 1, 1, 2, 3], - [3, 1, 1, 3, 2, 1], - [3, 3, 1, 1, 2, 1], - [3, 1, 2, 1, 1, 3], - [3, 1, 2, 3, 1, 1], - [3, 3, 2, 1, 1, 1], - [3, 1, 4, 1, 1, 1], - [2, 2, 1, 4, 1, 1], - [4, 3, 1, 1, 1, 1], - [1, 1, 1, 2, 2, 4], - [1, 1, 1, 4, 2, 2], - [1, 2, 1, 1, 2, 4], - [1, 2, 1, 4, 2, 1], - [1, 4, 1, 1, 2, 2], - [1, 4, 1, 2, 2, 1], - [1, 1, 2, 2, 1, 4], - [1, 1, 2, 4, 1, 2], - [1, 2, 2, 1, 1, 4], - [1, 2, 2, 4, 1, 1], - [1, 4, 2, 1, 1, 2], - [1, 4, 2, 2, 1, 1], - [2, 4, 1, 2, 1, 1], - [2, 2, 1, 1, 1, 4], - [4, 1, 3, 1, 1, 1], - [2, 4, 1, 1, 1, 2], - [1, 3, 4, 1, 1, 1], - [1, 1, 1, 2, 4, 2], - [1, 2, 1, 1, 4, 2], - [1, 2, 1, 2, 4, 1], - [1, 1, 4, 2, 1, 2], - [1, 2, 4, 1, 1, 2], - [1, 2, 4, 2, 1, 1], - [4, 1, 1, 2, 1, 2], - [4, 2, 1, 1, 1, 2], - [4, 2, 1, 2, 1, 1], - [2, 1, 2, 1, 4, 1], - [2, 1, 4, 1, 2, 1], - [4, 1, 2, 1, 2, 1], - [1, 1, 1, 1, 4, 3], - [1, 1, 1, 3, 4, 1], - [1, 3, 1, 1, 4, 1], - [1, 1, 4, 1, 1, 3], - [1, 1, 4, 3, 1, 1], - [4, 1, 1, 1, 1, 3], - [4, 1, 1, 3, 1, 1], - [1, 1, 3, 1, 4, 1], - [1, 1, 4, 1, 3, 1], - [3, 1, 1, 1, 4, 1], - [4, 1, 1, 1, 3, 1], - [2, 1, 1, 4, 1, 2], - [2, 1, 1, 2, 1, 4], - [2, 1, 1, 2, 3, 2], - [2, 3, 3, 1, 1, 1, 2] - ]}, - SINGLE_CODE_ERROR: {value: 1}, - AVG_CODE_ERROR: {value: 0.5}, - FORMAT: {value: "code_128", writeable: false} + that.setInputStream = function(config) { + _config = config; + video.src = (typeof config.src !== 'undefined') ? config.src : ''; }; - - Code128Reader.prototype = Object.create(BarcodeReader.prototype, properties); - Code128Reader.prototype.constructor = Code128Reader; - - Code128Reader.prototype._decodeCode = function(start) { - var counter = [0, 0, 0, 0, 0, 0], - i, - self = this, - offset = start, - isWhite = !self._row[offset], - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : start, - end : start - }, - code, - error, - normalized; - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - normalized = self._normalize(counter); - if (normalized) { - for (code = 0; code < self.CODE_PATTERN.length; code++) { - error = self._matchPattern(normalized, self.CODE_PATTERN[code]); - if (error < bestMatch.error) { - bestMatch.code = code; - bestMatch.error = error; - } - } - bestMatch.end = i; - return bestMatch; - } - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; + that.ended = function() { + return video.ended; + }; + + that.getConfig = function() { + return _config; + }; + + that.setAttribute = function(name, value) { + video.setAttribute(name, value); + }; + + that.pause = function() { + video.pause(); + }; + + that.play = function() { + video.play(); + }; + + that.setCurrentTime = function(time) { + if (_config.type !== "LiveStream") + video.currentTime = time; + }; + + that.addEventListener = function(event, f, bool) { + if (_eventNames.indexOf(event) !== -1) { + if (!_eventHandlers[event]) { + _eventHandlers[event] = []; } + _eventHandlers[event].push(f); + } else { + video.addEventListener(event, f, bool); } - return null; }; - Code128Reader.prototype._findStart = function() { - var counter = [0, 0, 0, 0, 0, 0], - i, - self = this, - offset = self._nextSet(self._row), - isWhite = false, - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 - }, - code, - error, - j, - sum, - normalized; - - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - sum = 0; - for ( j = 0; j < counter.length; j++) { - sum += counter[j]; - } - normalized = self._normalize(counter); - if (normalized) { - for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) { - error = self._matchPattern(normalized, self.CODE_PATTERN[code]); - if (error < bestMatch.error) { - bestMatch.code = code; - bestMatch.error = error; - } - } - if (bestMatch.error < self.AVG_CODE_ERROR) { - bestMatch.start = i - sum; - bestMatch.end = i; - return bestMatch; - } - } - - for ( j = 0; j < 4; j++) { - counter[j] = counter[j + 2]; - } - counter[4] = 0; - counter[5] = 0; - counterPos--; - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; + that.clearEventHandlers = function() { + _eventNames.forEach(function(eventName) { + var handlers = _eventHandlers[eventName]; + if (handlers && handlers.length > 0) { + handlers.forEach(function(handler) { + video.removeEventListener(eventName, handler); + }); } - } - return null; + }); }; - Code128Reader.prototype._decode = function() { - var self = this, - startInfo = self._findStart(), - code = null, - done = false, - result = [], - multiplier = 0, - checksum = 0, - codeset, - rawResult = [], - decodedCodes = [], - shiftNext = false, - unshift, - lastCharacterWasPrintable; + that.trigger = function(eventName, args) { + var j, + handlers = _eventHandlers[eventName]; - if (startInfo === null) { - return null; - } - code = { - code : startInfo.code, - start : startInfo.start, - end : startInfo.end - }; - decodedCodes.push(code); - checksum = code.code; - switch(code.code) { - case self.START_CODE_A: - codeset = self.CODE_A; - break; - case self.START_CODE_B: - codeset = self.CODE_B; - break; - case self.START_CODE_C: - codeset = self.CODE_C; - break; - default: - return null; + if (eventName === 'canrecord') { + initSize(); } - - while (!done) { - unshift = shiftNext; - shiftNext = false; - code = self._decodeCode(code.end); - if (code !== null) { - if (code.code !== self.STOP_CODE) { - rawResult.push(code.code); - multiplier++; - checksum += multiplier * code.code; - } - decodedCodes.push(code); - - switch(codeset) { - case self.CODE_A: - if (code.code < 64) { - result.push(String.fromCharCode(32 + code.code)); - } else if (code.code < 96) { - result.push(String.fromCharCode(code.code - 64)); - } else { - switch (code.code) { - case self.CODE_SHIFT: - shiftNext = true; - codeset = self.CODE_B; - break; - case self.CODE_B: - codeset = self.CODE_B; - break; - case self.CODE_C: - codeset = self.CODE_C; - break; - case self.STOP_CODE: - done = true; - break; - } - } - break; - case self.CODE_B: - if (code.code < 96) { - result.push(String.fromCharCode(32 + code.code)); - } else { - if (code.code != self.STOP_CODE) { - lastCharacterWasPrintable = false; - } - switch (code.code) { - case self.CODE_SHIFT: - shiftNext = true; - codeset = self.CODE_A; - break; - case self.CODE_A: - codeset = self.CODE_A; - break; - case self.CODE_C: - codeset = self.CODE_C; - break; - case self.STOP_CODE: - done = true; - break; - } - } - break; - case self.CODE_C: - if (code.code < 100) { - result.push(code.code < 10 ? "0" + code.code : code.code); - } - switch (code.code) { - case self.CODE_A: - codeset = self.CODE_A; - break; - case self.CODE_B: - codeset = self.CODE_B; - break; - case self.STOP_CODE: - done = true; - break; - } - break; - } - } else { - done = true; - } - if (unshift) { - codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A; + if (handlers && handlers.length > 0) { + for ( j = 0; j < handlers.length; j++) { + handlers[j].apply(that, args); } } + }; - if (code === null) { - return null; - } + that.setTopRight = function(topRight) { + _topRight.x = topRight.x; + _topRight.y = topRight.y; + }; - // find end bar - code.end = self._nextUnset(self._row, code.end); - if(!self._verifyTrailingWhitespace(code)){ - return null; - } + that.getTopRight = function() { + return _topRight; + }; - // checksum - // Does not work correctly yet!!! startcode - endcode? - checksum -= multiplier * rawResult[rawResult.length - 1]; - if (checksum % 103 != rawResult[rawResult.length - 1]) { - return null; - } + that.setCanvasSize = function(size) { + _canvasSize.x = size.x; + _canvasSize.y = size.y; + }; - if (!result.length) { - return null; - } + that.getCanvasSize = function() { + return _canvasSize; + }; - // remove last code from result (checksum) - result.splice(result.length - 1, 1); + that.getFrame = function() { + return video; + }; + return that; + }; + InputStream.createLiveStream = function(video) { + video.setAttribute("autoplay", true); + var that = InputStream.createVideoStream(video); - return { - code : result.join(""), - start : startInfo.start, - end : code.end, - codeset : codeset, - startInfo : startInfo, - decodedCodes : decodedCodes, - endInfo : code - }; + that.ended = function() { + return false; }; + return that; + }; - BarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) { - var self = this, - trailingWhitespaceEnd; + InputStream.createImageStream = function() { + var that = {}; + var _config = null; - trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2); - if (trailingWhitespaceEnd < self._row.length) { - if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { - return endInfo; - } - } - return null; - }; - - return (Code128Reader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ + var width = 0, + height = 0, + frameIdx = 0, + paused = true, + loaded = false, + imgArray = null, + size = 0, + offset = 1, + baseUrl = null, + ended = false, + calculatedWidth, + calculatedHeight, + _eventNames = ['canrecord', 'ended'], + _eventHandlers = {}, + _topRight = {x: 0, y: 0}, + _canvasSize = {x: 0, y: 0}; -define( - 'ean_reader',[ - "./barcode_reader" - ], - function(BarcodeReader) { - "use strict"; - - function EANReader(opts) { - BarcodeReader.call(this, opts); + function loadImages() { + loaded = false; + ImageLoader.load(baseUrl, function(imgs) { + imgArray = imgs; + width = imgs[0].width; + height = imgs[0].height; + calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; + calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; + _canvasSize.x = calculatedWidth; + _canvasSize.y = calculatedHeight; + loaded = true; + frameIdx = 0; + setTimeout(function() { + publishEvent("canrecord", []); + }, 0); + }, offset, size, _config.sequence); } - - var properties = { - CODE_L_START : {value: 0}, - MODULO : {value: 7}, - CODE_G_START : {value: 10}, - START_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, - STOP_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, - MIDDLE_PATTERN : {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]}, - CODE_PATTERN : {value: [ - [3, 2, 1, 1], - [2, 2, 2, 1], - [2, 1, 2, 2], - [1, 4, 1, 1], - [1, 1, 3, 2], - [1, 2, 3, 1], - [1, 1, 1, 4], - [1, 3, 1, 2], - [1, 2, 1, 3], - [3, 1, 1, 2], - [1, 1, 2, 3], - [1, 2, 2, 2], - [2, 2, 1, 2], - [1, 1, 4, 1], - [2, 3, 1, 1], - [1, 3, 2, 1], - [4, 1, 1, 1], - [2, 1, 3, 1], - [3, 1, 2, 1], - [2, 1, 1, 3] - ]}, - CODE_FREQUENCY : {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]}, - SINGLE_CODE_ERROR: {value: 0.67}, - AVG_CODE_ERROR: {value: 0.27}, - FORMAT: {value: "ean_13", writeable: false} - }; - - EANReader.prototype = Object.create(BarcodeReader.prototype, properties); - EANReader.prototype.constructor = EANReader; - - EANReader.prototype._decodeCode = function(start, coderange) { - var counter = [0, 0, 0, 0], - i, - self = this, - offset = start, - isWhite = !self._row[offset], - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : start, - end : start - }, - code, - error, - normalized; - - if (!coderange) { - coderange = self.CODE_PATTERN.length; - } - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - normalized = self._normalize(counter); - if (normalized) { - for (code = 0; code < coderange; code++) { - error = self._matchPattern(normalized, self.CODE_PATTERN[code]); - if (error < bestMatch.error) { - bestMatch.code = code; - bestMatch.error = error; - } - } - bestMatch.end = i; - if (bestMatch.error > self.AVG_CODE_ERROR) { - return null; - } - return bestMatch; - } - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; + function publishEvent(eventName, args) { + var j, + handlers = _eventHandlers[eventName]; + + if (handlers && handlers.length > 0) { + for ( j = 0; j < handlers.length; j++) { + handlers[j].apply(that, args); } } - return null; - }; - - EANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) { - var counter = [], - self = this, - i, - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 - }, - error, - j, - sum, - normalized; + } - if (!offset) { - offset = self._nextSet(self._row); - } - if (isWhite === undefined) { - isWhite = false; - } + that.trigger = publishEvent; - if (tryHarder === undefined) { - tryHarder = true; - } + that.getWidth = function() { + return calculatedWidth; + }; - if ( epsilon === undefined) { - epsilon = self.AVG_CODE_ERROR; - } + that.getHeight = function() { + return calculatedHeight; + }; - for ( i = 0; i < pattern.length; i++) { - counter[i] = 0; - } + that.setWidth = function(width) { + calculatedWidth = width; + }; - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - sum = 0; - for ( j = 0; j < counter.length; j++) { - sum += counter[j]; - } - normalized = self._normalize(counter); - if (normalized) { - error = self._matchPattern(normalized, pattern); + that.setHeight = function(height) { + calculatedHeight = height; + }; - if (error < epsilon) { - bestMatch.error = error; - bestMatch.start = i - sum; - bestMatch.end = i; - return bestMatch; - } - } - if (tryHarder) { - for ( j = 0; j < counter.length - 2; j++) { - counter[j] = counter[j + 2]; - } - counter[counter.length - 2] = 0; - counter[counter.length - 1] = 0; - counterPos--; - } else { - return null; - } - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - return null; + that.getRealWidth = function() { + return width; }; - EANReader.prototype._findStart = function() { - var self = this, - leadingWhitespaceStart, - offset = self._nextSet(self._row), - startInfo; + that.getRealHeight = function() { + return height; + }; - while(!startInfo) { - startInfo = self._findPattern(self.START_PATTERN, offset); - if (!startInfo) { - return null; - } - leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start); - if (leadingWhitespaceStart >= 0) { - if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { - return startInfo; - } - } - offset = startInfo.end; - startInfo = null; + that.setInputStream = function(stream) { + _config = stream; + if (stream.sequence === false) { + baseUrl = stream.src; + size = 1; + } else { + baseUrl = stream.src; + size = stream.length; } + loadImages(); }; - EANReader.prototype._verifyTrailingWhitespace = function(endInfo) { - var self = this, - trailingWhitespaceEnd; - - trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start); - if (trailingWhitespaceEnd < self._row.length) { - if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { - return endInfo; - } - } - return null; + that.ended = function() { + return ended; }; - EANReader.prototype._findEnd = function(offset, isWhite) { - var self = this, - endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false); + that.setAttribute = function() {}; - return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; + that.getConfig = function() { + return _config; }; - EANReader.prototype._calculateFirstDigit = function(codeFrequency) { - var i, - self = this; + that.pause = function() { + paused = true; + }; - for ( i = 0; i < self.CODE_FREQUENCY.length; i++) { - if (codeFrequency === self.CODE_FREQUENCY[i]) { - return i; - } - } - return null; + that.play = function() { + paused = false; }; - EANReader.prototype._decodePayload = function(code, result, decodedCodes) { - var i, - self = this, - codeFrequency = 0x0, - firstDigit; - - for ( i = 0; i < 6; i++) { - code = self._decodeCode(code.end); - if (!code) { - return null; - } - if (code.code >= self.CODE_G_START) { - code.code = code.code - self.CODE_G_START; - codeFrequency |= 1 << (5 - i); - } else { - codeFrequency |= 0 << (5 - i); - } - result.push(code.code); - decodedCodes.push(code); - } - - firstDigit = self._calculateFirstDigit(codeFrequency); - if (firstDigit === null) { - return null; - } - result.unshift(firstDigit); - - code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); - if (code === null) { - return null; - } - decodedCodes.push(code); + that.setCurrentTime = function(time) { + frameIdx = time; + }; - for ( i = 0; i < 6; i++) { - code = self._decodeCode(code.end, self.CODE_G_START); - if (!code) { - return null; + that.addEventListener = function(event, f) { + if (_eventNames.indexOf(event) !== -1) { + if (!_eventHandlers[event]) { + _eventHandlers[event] = []; } - decodedCodes.push(code); - result.push(code.code); + _eventHandlers[event].push(f); } - - return code; }; - EANReader.prototype._decode = function() { - var startInfo, - self = this, - code, - result = [], - decodedCodes = []; - - startInfo = self._findStart(); - if (!startInfo) { - return null; - } - code = { - code : startInfo.code, - start : startInfo.start, - end : startInfo.end - }; - decodedCodes.push(code); - code = self._decodePayload(code, result, decodedCodes); - if (!code) { - return null; - } - code = self._findEnd(code.end, false); - if (!code){ - return null; - } - - decodedCodes.push(code); - - // Checksum - if (!self._checksum(result)) { - return null; - } - - return { - code : result.join(""), - start : startInfo.start, - end : code.end, - codeset : "", - startInfo : startInfo, - decodedCodes : decodedCodes - }; + that.setTopRight = function(topRight) { + _topRight.x = topRight.x; + _topRight.y = topRight.y; }; - EANReader.prototype._checksum = function(result) { - var sum = 0, i; + that.getTopRight = function() { + return _topRight; + }; - for ( i = result.length - 2; i >= 0; i -= 2) { - sum += result[i]; - } - sum *= 3; - for ( i = result.length - 1; i >= 0; i -= 2) { - sum += result[i]; - } - return sum % 10 === 0; + that.setCanvasSize = function(size) { + _canvasSize.x = size.x; + _canvasSize.y = size.y; }; - - return (EANReader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ -define('image_loader',[],function() { - "use strict"; + that.getCanvasSize = function() { + return _canvasSize; + }; - var ImageLoader = {}; - ImageLoader.load = function(directory, callback, offset, size, sequence) { - var htmlImagesSrcArray = new Array(size), - htmlImagesArray = new Array(htmlImagesSrcArray.length), - i, - img, - num; + that.getFrame = function() { + var frame; - if (sequence === false) { - htmlImagesSrcArray[0] = directory; - } else { - for ( i = 0; i < htmlImagesSrcArray.length; i++) { - num = (offset + i); - htmlImagesSrcArray[i] = directory + "image-" + ("00" + num).slice(-3) + ".jpg"; + if (!loaded){ + return null; } - } - htmlImagesArray.notLoaded = []; - htmlImagesArray.addImage = function(img) { - htmlImagesArray.notLoaded.push(img); - }; - htmlImagesArray.loaded = function(loadedImg) { - var notloadedImgs = htmlImagesArray.notLoaded; - for (var x = 0; x < notloadedImgs.length; x++) { - if (notloadedImgs[x] == loadedImg) { - notloadedImgs.splice(x, 1); - for (var y = 0; y < htmlImagesSrcArray.length; y++) { - var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf("/")); - if (loadedImg.src.lastIndexOf(imgName) != -1) { - htmlImagesArray[y] = loadedImg; - break; - } - } - break; + if (!paused) { + frame = imgArray[frameIdx]; + if (frameIdx < (size - 1)) { + frameIdx++; + } else { + setTimeout(function() { + ended = true; + publishEvent("ended", []); + }, 0); } } - if (notloadedImgs.length === 0) { - console.log("Images loaded"); - callback.apply(null, [htmlImagesArray]); - } + return frame; }; - - for ( i = 0; i < htmlImagesSrcArray.length; i++) { - img = new Image(); - htmlImagesArray.addImage(img); - addOnloadHandler(img, htmlImagesArray); - img.src = htmlImagesSrcArray[i]; - } + + return that; }; - - function addOnloadHandler(img, htmlImagesArray) { - img.onload = function() { - htmlImagesArray.loaded(this); - }; - } - return (ImageLoader); + return (InputStream); }); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('input_stream',["image_loader"], function(ImageLoader) { - "use strict"; - - var InputStream = {}; - InputStream.createVideoStream = function(video) { - var that = {}, - _config = null, - _eventNames = ['canrecord', 'ended'], - _eventHandlers = {}, - _calculatedWidth, - _calculatedHeight, - _topRight = {x: 0, y: 0}, - _canvasSize = {x: 0, y: 0}; - - function initSize() { - var width = video.videoWidth, - height = video.videoHeight; +/* + * typedefs.js + * Normalizes browser-specific prefixes + */ - _calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; - _calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; +glMatrixArrayType = Float32Array; +if (typeof window !== 'undefined') { + window.requestAnimFrame = (function () { + return window.requestAnimationFrame || + window.webkitRequestAnimationFrame || + window.mozRequestAnimationFrame || + window.oRequestAnimationFrame || + window.msRequestAnimationFrame || + function (/* function FrameRequestCallback */ callback, /* DOMElement Element */ element) { + window.setTimeout(callback, 1000 / 60); + }; + })(); - _canvasSize.x = _calculatedWidth; - _canvasSize.y = _calculatedHeight; - } + navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; + window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; +} - that.getRealWidth = function() { - return video.videoWidth; - }; +define("typedefs", (function (global) { + return function () { + var ret, fn; + return ret || global.typedefs; + }; +}(this))); - that.getRealHeight = function() { - return video.videoHeight; - }; +/* jshint undef: true, unused: true, browser:true, devel: true */ +/* global define */ - that.getWidth = function() { - return _calculatedWidth; - }; +define('subImage',["typedefs"], function() { + "use strict"; - that.getHeight = function() { - return _calculatedHeight; - }; - - that.setWidth = function(width) { - _calculatedWidth = width; - }; - - that.setHeight = function(height) { - _calculatedHeight = height; - }; + /** + * Construct representing a part of another {ImageWrapper}. Shares data + * between the parent and the child. + * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) + * @param size {ImageRef} The size of the resulting image + * @param I {ImageWrapper} The {ImageWrapper} to share from + * @returns {SubImage} A shared part of the original image + */ + function SubImage(from, size, I) { + if (!I) { + I = { + data : null, + size : size + }; + } + this.data = I.data; + this.originalSize = I.size; + this.I = I; - that.setInputStream = function(config) { - _config = config; - video.src = (typeof config.src !== 'undefined') ? config.src : ''; - }; + this.from = from; + this.size = size; + } - that.ended = function() { - return video.ended; - }; + /** + * Displays the {SubImage} in a given canvas + * @param canvas {Canvas} The canvas element to write to + * @param scale {Number} Scale which is applied to each pixel-value + */ + SubImage.prototype.show = function(canvas, scale) { + var ctx, + frame, + data, + current, + y, + x, + pixel; + + if (!scale) { + scale = 1.0; + } + ctx = canvas.getContext('2d'); + canvas.width = this.size.x; + canvas.height = this.size.y; + frame = ctx.getImageData(0, 0, canvas.width, canvas.height); + data = frame.data; + current = 0; + for (y = 0; y < this.size.y; y++) { + for (x = 0; x < this.size.x; x++) { + pixel = y * this.size.x + x; + current = this.get(x, y) * scale; + data[pixel * 4 + 0] = current; + data[pixel * 4 + 1] = current; + data[pixel * 4 + 2] = current; + data[pixel * 4 + 3] = 255; + } + } + frame.data = data; + ctx.putImageData(frame, 0, 0); + }; - that.getConfig = function() { - return _config; - }; + /** + * Retrieves a given pixel position from the {SubImage} + * @param x {Number} The x-position + * @param y {Number} The y-position + * @returns {Number} The grayscale value at the pixel-position + */ + SubImage.prototype.get = function(x, y) { + return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x]; + }; - that.setAttribute = function(name, value) { - video.setAttribute(name, value); - }; + /** + * Updates the underlying data from a given {ImageWrapper} + * @param image {ImageWrapper} The updated image + */ + SubImage.prototype.updateData = function(image) { + this.originalSize = image.size; + this.data = image.data; + }; - that.pause = function() { - video.pause(); - }; + /** + * Updates the position of the shared area + * @param from {x,y} The new location + * @returns {SubImage} returns {this} for possible chaining + */ + SubImage.prototype.updateFrom = function(from) { + this.from = from; + return this; + }; + + return (SubImage); +}); +/* jshint undef: true, unused: true, browser:true, devel: true */ +/* global define, vec2 */ - that.play = function() { - video.play(); - }; +define('cluster',[],function() { + "use strict"; + + /** + * Creates a cluster for grouping similar orientations of datapoints + */ + var Cluster = { + create : function(point, threshold) { + var points = [], center = { + rad : 0, + vec : vec2.create([0, 0]) + }, pointMap = {}; - that.setCurrentTime = function(time) { - if (_config.type !== "LiveStream") - video.currentTime = time; - }; + function init() { + add(point); + updateCenter(); + } - that.addEventListener = function(event, f, bool) { - if (_eventNames.indexOf(event) !== -1) { - if (!_eventHandlers[event]) { - _eventHandlers[event] = []; - } - _eventHandlers[event].push(f); - } else { - video.addEventListener(event, f, bool); + function add(point) { + pointMap[point.id] = point; + points.push(point); } - }; - that.clearEventHandlers = function() { - _eventNames.forEach(function(eventName) { - var handlers = _eventHandlers[eventName]; - if (handlers && handlers.length > 0) { - handlers.forEach(function(handler) { - video.removeEventListener(eventName, handler); - }); + function updateCenter() { + var i, sum = 0; + for ( i = 0; i < points.length; i++) { + sum += points[i].rad; } - }); - }; + center.rad = sum / points.length; + center.vec = vec2.create([Math.cos(center.rad), Math.sin(center.rad)]); + } - that.trigger = function(eventName, args) { - var j, - handlers = _eventHandlers[eventName]; + init(); - if (eventName === 'canrecord') { - initSize(); - } - if (handlers && handlers.length > 0) { - for ( j = 0; j < handlers.length; j++) { - handlers[j].apply(that, args); + return { + add : function(point) { + if (!pointMap[point.id]) { + add(point); + updateCenter(); + } + }, + fits : function(point) { + // check cosine similarity to center-angle + var similarity = Math.abs(vec2.dot(point.point.vec, center.vec)); + if (similarity > threshold) { + return true; + } + return false; + }, + getPoints : function() { + return points; + }, + getCenter : function() { + return center; } - } - }; + }; + }, + createPoint : function(point, id, property) { + return { + rad : point[property], + point : point, + id : id + }; + } + }; - that.setTopRight = function(topRight) { - _topRight.x = topRight.x; - _topRight.y = topRight.y; - }; + return (Cluster); +}); - that.getTopRight = function() { - return _topRight; - }; +/* + * glMatrix.js - High performance matrix and vector operations for WebGL + * version 0.9.6 + */ + +/* + * Copyright (c) 2011 Brandon Jones + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the authors be held liable for any damages + * arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute it + * freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. If you use this software + * in a product, an acknowledgment in the product documentation would be + * appreciated but is not required. + * + * 2. Altered source versions must be plainly marked as such, and must not + * be misrepresented as being the original software. + * + * 3. This notice may not be removed or altered from any source + * distribution. + */ - that.setCanvasSize = function(size) { - _canvasSize.x = size.x; - _canvasSize.y = size.y; - }; - that.getCanvasSize = function() { - return _canvasSize; - }; - that.getFrame = function() { - return video; - }; +/* + * vec3 - 3 Dimensional Vector + */ +var vec3 = {}; - return that; - }; +/* + * vec3.create + * Creates a new instance of a vec3 using the default array type + * Any javascript array containing at least 3 numeric elements can serve as a vec3 + * + * Params: + * vec - Optional, vec3 containing values to initialize with + * + * Returns: + * New vec3 + */ +vec3.create = function(vec) { + var dest; + if(vec) { + dest = new glMatrixArrayType(3); + dest[0] = vec[0]; + dest[1] = vec[1]; + dest[2] = vec[2]; + } else { + if(glMatrixArrayType === Array) + dest = new glMatrixArrayType([0,0,0]); + else + dest = new glMatrixArrayType(3); + } + + return dest; +}; - InputStream.createLiveStream = function(video) { - video.setAttribute("autoplay", true); - var that = InputStream.createVideoStream(video); +/* + * vec3.set + * Copies the values of one vec3 to another + * + * Params: + * vec - vec3 containing values to copy + * dest - vec3 receiving copied values + * + * Returns: + * dest + */ +vec3.set = function(vec, dest) { + dest[0] = vec[0]; + dest[1] = vec[1]; + dest[2] = vec[2]; + + return dest; +}; - that.ended = function() { - return false; - }; +/* + * vec3.add + * Performs a vector addition + * + * Params: + * vec - vec3, first operand + * vec2 - vec3, second operand + * dest - Optional, vec3 receiving operation result. If not specified result is written to vec + * + * Returns: + * dest if specified, vec otherwise + */ +vec3.add = function(vec, vec2, dest) { + if(!dest || vec == dest) { + vec[0] += vec2[0]; + vec[1] += vec2[1]; + vec[2] += vec2[2]; + return vec; + } + + dest[0] = vec[0] + vec2[0]; + dest[1] = vec[1] + vec2[1]; + dest[2] = vec[2] + vec2[2]; + return dest; +}; - return that; - }; +/* + * vec3.subtract + * Performs a vector subtraction + * + * Params: + * vec - vec3, first operand + * vec2 - vec3, second operand + * dest - Optional, vec3 receiving operation result. If not specified result is written to vec + * + * Returns: + * dest if specified, vec otherwise + */ +vec3.subtract = function(vec, vec2, dest) { + if(!dest || vec == dest) { + vec[0] -= vec2[0]; + vec[1] -= vec2[1]; + vec[2] -= vec2[2]; + return vec; + } + + dest[0] = vec[0] - vec2[0]; + dest[1] = vec[1] - vec2[1]; + dest[2] = vec[2] - vec2[2]; + return dest; +}; - InputStream.createImageStream = function() { - var that = {}; - var _config = null; - - var width = 0, - height = 0, - frameIdx = 0, - paused = true, - loaded = false, - imgArray = null, - size = 0, - offset = 1, - baseUrl = null, - ended = false, - calculatedWidth, - calculatedHeight, - _eventNames = ['canrecord', 'ended'], - _eventHandlers = {}, - _topRight = {x: 0, y: 0}, - _canvasSize = {x: 0, y: 0}; - - function loadImages() { - loaded = false; - ImageLoader.load(baseUrl, function(imgs) { - imgArray = imgs; - width = imgs[0].width; - height = imgs[0].height; - calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; - calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; - _canvasSize.x = calculatedWidth; - _canvasSize.y = calculatedHeight; - loaded = true; - frameIdx = 0; - setTimeout(function() { - publishEvent("canrecord", []); - }, 0); - }, offset, size, _config.sequence); - } - - function publishEvent(eventName, args) { - var j, - handlers = _eventHandlers[eventName]; - - if (handlers && handlers.length > 0) { - for ( j = 0; j < handlers.length; j++) { - handlers[j].apply(that, args); - } - } - } - - - that.trigger = publishEvent; - - that.getWidth = function() { - return calculatedWidth; - }; - - that.getHeight = function() { - return calculatedHeight; - }; - - that.setWidth = function(width) { - calculatedWidth = width; - }; - - that.setHeight = function(height) { - calculatedHeight = height; - }; - - that.getRealWidth = function() { - return width; - }; - - that.getRealHeight = function() { - return height; - }; - - that.setInputStream = function(stream) { - _config = stream; - if (stream.sequence === false) { - baseUrl = stream.src; - size = 1; - } else { - baseUrl = stream.src; - size = stream.length; - } - loadImages(); - }; - - that.ended = function() { - return ended; - }; - - that.setAttribute = function() {}; - - that.getConfig = function() { - return _config; - }; - - that.pause = function() { - paused = true; - }; - - that.play = function() { - paused = false; - }; - - that.setCurrentTime = function(time) { - frameIdx = time; - }; +/* + * vec3.negate + * Negates the components of a vec3 + * + * Params: + * vec - vec3 to negate + * dest - Optional, vec3 receiving operation result. If not specified result is written to vec + * + * Returns: + * dest if specified, vec otherwise + */ +vec3.negate = function(vec, dest) { + if(!dest) { dest = vec; } + + dest[0] = -vec[0]; + dest[1] = -vec[1]; + dest[2] = -vec[2]; + return dest; +}; - that.addEventListener = function(event, f) { - if (_eventNames.indexOf(event) !== -1) { - if (!_eventHandlers[event]) { - _eventHandlers[event] = []; - } - _eventHandlers[event].push(f); - } - }; +/* + * vec3.scale + * Multiplies the components of a vec3 by a scalar value + * + * Params: + * vec - vec3 to scale + * val - Numeric value to scale by + * dest - Optional, vec3 receiving operation result. If not specified result is written to vec + * + * Returns: + * dest if specified, vec otherwise + */ +vec3.scale = function(vec, val, dest) { + if(!dest || vec == dest) { + vec[0] *= val; + vec[1] *= val; + vec[2] *= val; + return vec; + } + + dest[0] = vec[0]*val; + dest[1] = vec[1]*val; + dest[2] = vec[2]*val; + return dest; +}; - that.setTopRight = function(topRight) { - _topRight.x = topRight.x; - _topRight.y = topRight.y; - }; +/* + * vec3.normalize + * Generates a unit vector of the same direction as the provided vec3 + * If vector length is 0, returns [0, 0, 0] + * + * Params: + * vec - vec3 to normalize + * dest - Optional, vec3 receiving operation result. If not specified result is written to vec + * + * Returns: + * dest if specified, vec otherwise + */ +vec3.normalize = function(vec, dest) { + if(!dest) { dest = vec; } + + var x = vec[0], y = vec[1], z = vec[2]; + var len = Math.sqrt(x*x + y*y + z*z); + + if (!len) { + dest[0] = 0; + dest[1] = 0; + dest[2] = 0; + return dest; + } else if (len == 1) { + dest[0] = x; + dest[1] = y; + dest[2] = z; + return dest; + } + + len = 1 / len; + dest[0] = x*len; + dest[1] = y*len; + dest[2] = z*len; + return dest; +}; - that.getTopRight = function() { - return _topRight; - }; +/* + * vec3.cross + * Generates the cross product of two vec3s + * + * Params: + * vec - vec3, first operand + * vec2 - vec3, second operand + * dest - Optional, vec3 receiving operation result. If not specified result is written to vec + * + * Returns: + * dest if specified, vec otherwise + */ +vec3.cross = function(vec, vec2, dest){ + if(!dest) { dest = vec; } + + var x = vec[0], y = vec[1], z = vec[2]; + var x2 = vec2[0], y2 = vec2[1], z2 = vec2[2]; + + dest[0] = y*z2 - z*y2; + dest[1] = z*x2 - x*z2; + dest[2] = x*y2 - y*x2; + return dest; +}; - that.setCanvasSize = function(size) { - _canvasSize.x = size.x; - _canvasSize.y = size.y; - }; +/* + * vec3.length + * Caclulates the length of a vec3 + * + * Params: + * vec - vec3 to calculate length of + * + * Returns: + * Length of vec + */ +vec3.length = function(vec){ + var x = vec[0], y = vec[1], z = vec[2]; + return Math.sqrt(x*x + y*y + z*z); +}; - that.getCanvasSize = function() { - return _canvasSize; - }; +/* + * vec3.dot + * Caclulates the dot product of two vec3s + * + * Params: + * vec - vec3, first operand + * vec2 - vec3, second operand + * + * Returns: + * Dot product of vec and vec2 + */ +vec3.dot = function(vec, vec2){ + return vec[0]*vec2[0] + vec[1]*vec2[1] + vec[2]*vec2[2]; +}; - that.getFrame = function() { - var frame; - - if (!loaded){ - return null; - } - if (!paused) { - frame = imgArray[frameIdx]; - if (frameIdx < (size - 1)) { - frameIdx++; - } else { - setTimeout(function() { - ended = true; - publishEvent("ended", []); - }, 0); - } - } - return frame; - }; +/* + * vec3.direction + * Generates a unit vector pointing from one vector to another + * + * Params: + * vec - origin vec3 + * vec2 - vec3 to point to + * dest - Optional, vec3 receiving operation result. If not specified result is written to vec + * + * Returns: + * dest if specified, vec otherwise + */ +vec3.direction = function(vec, vec2, dest) { + if(!dest) { dest = vec; } + + var x = vec[0] - vec2[0]; + var y = vec[1] - vec2[1]; + var z = vec[2] - vec2[2]; + + var len = Math.sqrt(x*x + y*y + z*z); + if (!len) { + dest[0] = 0; + dest[1] = 0; + dest[2] = 0; + return dest; + } + + len = 1 / len; + dest[0] = x * len; + dest[1] = y * len; + dest[2] = z * len; + return dest; +}; - return that; - }; +/* + * vec3.lerp + * Performs a linear interpolation between two vec3 + * + * Params: + * vec - vec3, first vector + * vec2 - vec3, second vector + * lerp - interpolation amount between the two inputs + * dest - Optional, vec3 receiving operation result. If not specified result is written to vec + * + * Returns: + * dest if specified, vec otherwise + */ +vec3.lerp = function(vec, vec2, lerp, dest){ + if(!dest) { dest = vec; } + + dest[0] = vec[0] + lerp * (vec2[0] - vec[0]); + dest[1] = vec[1] + lerp * (vec2[1] - vec[1]); + dest[2] = vec[2] + lerp * (vec2[2] - vec[2]); + + return dest; +}; - return (InputStream); -}); +/* + * vec3.str + * Returns a string representation of a vector + * + * Params: + * vec - vec3 to represent as a string + * + * Returns: + * string representation of vec + */ +vec3.str = function(vec) { + return '[' + vec[0] + ', ' + vec[1] + ', ' + vec[2] + ']'; +}; /* - * typedefs.js - * Normalizes browser-specific prefixes + * mat3 - 3x3 Matrix */ +var mat3 = {}; +<<<<<<< HEAD glMatrixArrayType = Float32Array; if (typeof window !== 'undefined') { window.requestAnimFrame = (function () { @@ -3606,11 +3181,79 @@ mat2.invert = function(out, a) { /** * Calculates the adjugate of a mat2 +======= +/* + * mat3.create + * Creates a new instance of a mat3 using the default array type + * Any javascript array containing at least 9 numeric elements can serve as a mat3 + * + * Params: + * mat - Optional, mat3 containing values to initialize with + * + * Returns: + * New mat3 + */ +mat3.create = function(mat) { + var dest; + + if(mat) { + dest = new glMatrixArrayType(9); + dest[0] = mat[0]; + dest[1] = mat[1]; + dest[2] = mat[2]; + dest[3] = mat[3]; + dest[4] = mat[4]; + dest[5] = mat[5]; + dest[6] = mat[6]; + dest[7] = mat[7]; + dest[8] = mat[8]; + } else { + if(glMatrixArrayType === Array) + dest = new glMatrixArrayType([0,0,0,0,0,0,0,0,0]); + else + dest = new glMatrixArrayType(9); + } + + return dest; +}; + +/* + * mat3.set + * Copies the values of one mat3 to another + * + * Params: + * mat - mat3 containing values to copy + * dest - mat3 receiving copied values + * + * Returns: + * dest + */ +mat3.set = function(mat, dest) { + dest[0] = mat[0]; + dest[1] = mat[1]; + dest[2] = mat[2]; + dest[3] = mat[3]; + dest[4] = mat[4]; + dest[5] = mat[5]; + dest[6] = mat[6]; + dest[7] = mat[7]; + dest[8] = mat[8]; + return dest; +}; + +/* + * mat3.identity + * Sets a mat3 to an identity matrix + * + * Params: + * dest - mat3 to set +>>>>>>> bc7283003570f6aa9b9930de2e1208cd18656951 * * @param {mat2} out the receiving matrix * @param {mat2} a the source matrix * @returns {mat2} out */ +<<<<<<< HEAD mat2.adjoint = function(out, a) { // Caching this value is nessecary if out == a var a0 = a[0]; @@ -5421,49 +5064,1258 @@ quat.setAxisAngle = function(out, axis, rad) { out[2] = s * axis[2]; out[3] = Math.cos(rad); return out; +======= +mat3.identity = function(dest) { + dest[0] = 1; + dest[1] = 0; + dest[2] = 0; + dest[3] = 0; + dest[4] = 1; + dest[5] = 0; + dest[6] = 0; + dest[7] = 0; + dest[8] = 1; + return dest; }; -/** - * Adds two quat's +/* + * mat4.transpose + * Transposes a mat3 (flips the values over the diagonal) + * + * Params: + * mat - mat3 to transpose + * dest - Optional, mat3 receiving transposed values. If not specified result is written to mat + * + * Returns: + * dest is specified, mat otherwise + */ +mat3.transpose = function(mat, dest) { + // If we are transposing ourselves we can skip a few steps but have to cache some values + if(!dest || mat == dest) { + var a01 = mat[1], a02 = mat[2]; + var a12 = mat[5]; + + mat[1] = mat[3]; + mat[2] = mat[6]; + mat[3] = a01; + mat[5] = mat[7]; + mat[6] = a02; + mat[7] = a12; + return mat; + } + + dest[0] = mat[0]; + dest[1] = mat[3]; + dest[2] = mat[6]; + dest[3] = mat[1]; + dest[4] = mat[4]; + dest[5] = mat[7]; + dest[6] = mat[2]; + dest[7] = mat[5]; + dest[8] = mat[8]; + return dest; +}; + +/* + * mat3.toMat4 + * Copies the elements of a mat3 into the upper 3x3 elements of a mat4 + * + * Params: + * mat - mat3 containing values to copy + * dest - Optional, mat4 receiving copied values + * + * Returns: + * dest if specified, a new mat4 otherwise + */ +mat3.toMat4 = function(mat, dest) { + if(!dest) { dest = mat4.create(); } + + dest[0] = mat[0]; + dest[1] = mat[1]; + dest[2] = mat[2]; + dest[3] = 0; + + dest[4] = mat[3]; + dest[5] = mat[4]; + dest[6] = mat[5]; + dest[7] = 0; + + dest[8] = mat[6]; + dest[9] = mat[7]; + dest[10] = mat[8]; + dest[11] = 0; + + dest[12] = 0; + dest[13] = 0; + dest[14] = 0; + dest[15] = 1; + + return dest; +}; + +/* + * mat3.str + * Returns a string representation of a mat3 * - * @param {quat} out the receiving quaternion - * @param {quat} a the first operand - * @param {quat} b the second operand - * @returns {quat} out - * @function + * Params: + * mat - mat3 to represent as a string + * + * Returns: + * string representation of mat */ -quat.add = vec4.add; +mat3.str = function(mat) { + return '[' + mat[0] + ', ' + mat[1] + ', ' + mat[2] + + ', ' + mat[3] + ', '+ mat[4] + ', ' + mat[5] + + ', ' + mat[6] + ', ' + mat[7] + ', '+ mat[8] + ']'; +}; -/** - * Multiplies two quat's - * - * @param {quat} out the receiving quaternion - * @param {quat} a the first operand - * @param {quat} b the second operand - * @returns {quat} out +/* + * mat4 - 4x4 Matrix */ -quat.multiply = function(out, a, b) { - var ax = a[0], ay = a[1], az = a[2], aw = a[3], - bx = b[0], by = b[1], bz = b[2], bw = b[3]; +var mat4 = {}; - out[0] = ax * bw + aw * bx + ay * bz - az * by; - out[1] = ay * bw + aw * by + az * bx - ax * bz; - out[2] = az * bw + aw * bz + ax * by - ay * bx; - out[3] = aw * bw - ax * bx - ay * by - az * bz; - return out; +/* + * mat4.create + * Creates a new instance of a mat4 using the default array type + * Any javascript array containing at least 16 numeric elements can serve as a mat4 + * + * Params: + * mat - Optional, mat4 containing values to initialize with + * + * Returns: + * New mat4 + */ +mat4.create = function(mat) { + var dest; + + if(mat) { + dest = new glMatrixArrayType(16); + dest[0] = mat[0]; + dest[1] = mat[1]; + dest[2] = mat[2]; + dest[3] = mat[3]; + dest[4] = mat[4]; + dest[5] = mat[5]; + dest[6] = mat[6]; + dest[7] = mat[7]; + dest[8] = mat[8]; + dest[9] = mat[9]; + dest[10] = mat[10]; + dest[11] = mat[11]; + dest[12] = mat[12]; + dest[13] = mat[13]; + dest[14] = mat[14]; + dest[15] = mat[15]; + } else { + if(glMatrixArrayType === Array) + dest = new glMatrixArrayType([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]); + else + dest = new glMatrixArrayType(16); + } + + return dest; }; -/** - * Alias for {@link quat.multiply} - * @function - */ -quat.mul = quat.multiply; +/* + * mat4.set + * Copies the values of one mat4 to another + * + * Params: + * mat - mat4 containing values to copy + * dest - mat4 receiving copied values + * + * Returns: + * dest + */ +mat4.set = function(mat, dest) { + dest[0] = mat[0]; + dest[1] = mat[1]; + dest[2] = mat[2]; + dest[3] = mat[3]; + dest[4] = mat[4]; + dest[5] = mat[5]; + dest[6] = mat[6]; + dest[7] = mat[7]; + dest[8] = mat[8]; + dest[9] = mat[9]; + dest[10] = mat[10]; + dest[11] = mat[11]; + dest[12] = mat[12]; + dest[13] = mat[13]; + dest[14] = mat[14]; + dest[15] = mat[15]; + return dest; +}; -/** - * Scales a quat by a scalar number - * - * @param {quat} out the receiving vector - * @param {quat} a the vector to scale +/* + * mat4.identity + * Sets a mat4 to an identity matrix + * + * Params: + * dest - mat4 to set + * + * Returns: + * dest + */ +mat4.identity = function(dest) { + dest[0] = 1; + dest[1] = 0; + dest[2] = 0; + dest[3] = 0; + dest[4] = 0; + dest[5] = 1; + dest[6] = 0; + dest[7] = 0; + dest[8] = 0; + dest[9] = 0; + dest[10] = 1; + dest[11] = 0; + dest[12] = 0; + dest[13] = 0; + dest[14] = 0; + dest[15] = 1; + return dest; +}; + +/* + * mat4.transpose + * Transposes a mat4 (flips the values over the diagonal) + * + * Params: + * mat - mat4 to transpose + * dest - Optional, mat4 receiving transposed values. If not specified result is written to mat + * + * Returns: + * dest is specified, mat otherwise + */ +mat4.transpose = function(mat, dest) { + // If we are transposing ourselves we can skip a few steps but have to cache some values + if(!dest || mat == dest) { + var a01 = mat[1], a02 = mat[2], a03 = mat[3]; + var a12 = mat[6], a13 = mat[7]; + var a23 = mat[11]; + + mat[1] = mat[4]; + mat[2] = mat[8]; + mat[3] = mat[12]; + mat[4] = a01; + mat[6] = mat[9]; + mat[7] = mat[13]; + mat[8] = a02; + mat[9] = a12; + mat[11] = mat[14]; + mat[12] = a03; + mat[13] = a13; + mat[14] = a23; + return mat; + } + + dest[0] = mat[0]; + dest[1] = mat[4]; + dest[2] = mat[8]; + dest[3] = mat[12]; + dest[4] = mat[1]; + dest[5] = mat[5]; + dest[6] = mat[9]; + dest[7] = mat[13]; + dest[8] = mat[2]; + dest[9] = mat[6]; + dest[10] = mat[10]; + dest[11] = mat[14]; + dest[12] = mat[3]; + dest[13] = mat[7]; + dest[14] = mat[11]; + dest[15] = mat[15]; + return dest; +}; + +/* + * mat4.determinant + * Calculates the determinant of a mat4 + * + * Params: + * mat - mat4 to calculate determinant of + * + * Returns: + * determinant of mat + */ +mat4.determinant = function(mat) { + // Cache the matrix values (makes for huge speed increases!) + var a00 = mat[0], a01 = mat[1], a02 = mat[2], a03 = mat[3]; + var a10 = mat[4], a11 = mat[5], a12 = mat[6], a13 = mat[7]; + var a20 = mat[8], a21 = mat[9], a22 = mat[10], a23 = mat[11]; + var a30 = mat[12], a31 = mat[13], a32 = mat[14], a33 = mat[15]; + + return a30*a21*a12*a03 - a20*a31*a12*a03 - a30*a11*a22*a03 + a10*a31*a22*a03 + + a20*a11*a32*a03 - a10*a21*a32*a03 - a30*a21*a02*a13 + a20*a31*a02*a13 + + a30*a01*a22*a13 - a00*a31*a22*a13 - a20*a01*a32*a13 + a00*a21*a32*a13 + + a30*a11*a02*a23 - a10*a31*a02*a23 - a30*a01*a12*a23 + a00*a31*a12*a23 + + a10*a01*a32*a23 - a00*a11*a32*a23 - a20*a11*a02*a33 + a10*a21*a02*a33 + + a20*a01*a12*a33 - a00*a21*a12*a33 - a10*a01*a22*a33 + a00*a11*a22*a33; +}; + +/* + * mat4.inverse + * Calculates the inverse matrix of a mat4 + * + * Params: + * mat - mat4 to calculate inverse of + * dest - Optional, mat4 receiving inverse matrix. If not specified result is written to mat + * + * Returns: + * dest is specified, mat otherwise + */ +mat4.inverse = function(mat, dest) { + if(!dest) { dest = mat; } + + // Cache the matrix values (makes for huge speed increases!) + var a00 = mat[0], a01 = mat[1], a02 = mat[2], a03 = mat[3]; + var a10 = mat[4], a11 = mat[5], a12 = mat[6], a13 = mat[7]; + var a20 = mat[8], a21 = mat[9], a22 = mat[10], a23 = mat[11]; + var a30 = mat[12], a31 = mat[13], a32 = mat[14], a33 = mat[15]; + + var b00 = a00*a11 - a01*a10; + var b01 = a00*a12 - a02*a10; + var b02 = a00*a13 - a03*a10; + var b03 = a01*a12 - a02*a11; + var b04 = a01*a13 - a03*a11; + var b05 = a02*a13 - a03*a12; + var b06 = a20*a31 - a21*a30; + var b07 = a20*a32 - a22*a30; + var b08 = a20*a33 - a23*a30; + var b09 = a21*a32 - a22*a31; + var b10 = a21*a33 - a23*a31; + var b11 = a22*a33 - a23*a32; + + // Calculate the determinant (inlined to avoid double-caching) + var invDet = 1/(b00*b11 - b01*b10 + b02*b09 + b03*b08 - b04*b07 + b05*b06); + + dest[0] = (a11*b11 - a12*b10 + a13*b09)*invDet; + dest[1] = (-a01*b11 + a02*b10 - a03*b09)*invDet; + dest[2] = (a31*b05 - a32*b04 + a33*b03)*invDet; + dest[3] = (-a21*b05 + a22*b04 - a23*b03)*invDet; + dest[4] = (-a10*b11 + a12*b08 - a13*b07)*invDet; + dest[5] = (a00*b11 - a02*b08 + a03*b07)*invDet; + dest[6] = (-a30*b05 + a32*b02 - a33*b01)*invDet; + dest[7] = (a20*b05 - a22*b02 + a23*b01)*invDet; + dest[8] = (a10*b10 - a11*b08 + a13*b06)*invDet; + dest[9] = (-a00*b10 + a01*b08 - a03*b06)*invDet; + dest[10] = (a30*b04 - a31*b02 + a33*b00)*invDet; + dest[11] = (-a20*b04 + a21*b02 - a23*b00)*invDet; + dest[12] = (-a10*b09 + a11*b07 - a12*b06)*invDet; + dest[13] = (a00*b09 - a01*b07 + a02*b06)*invDet; + dest[14] = (-a30*b03 + a31*b01 - a32*b00)*invDet; + dest[15] = (a20*b03 - a21*b01 + a22*b00)*invDet; + + return dest; +}; + +/* + * mat4.toRotationMat + * Copies the upper 3x3 elements of a mat4 into another mat4 + * + * Params: + * mat - mat4 containing values to copy + * dest - Optional, mat4 receiving copied values + * + * Returns: + * dest is specified, a new mat4 otherwise + */ +mat4.toRotationMat = function(mat, dest) { + if(!dest) { dest = mat4.create(); } + + dest[0] = mat[0]; + dest[1] = mat[1]; + dest[2] = mat[2]; + dest[3] = mat[3]; + dest[4] = mat[4]; + dest[5] = mat[5]; + dest[6] = mat[6]; + dest[7] = mat[7]; + dest[8] = mat[8]; + dest[9] = mat[9]; + dest[10] = mat[10]; + dest[11] = mat[11]; + dest[12] = 0; + dest[13] = 0; + dest[14] = 0; + dest[15] = 1; + + return dest; +}; + +/* + * mat4.toMat3 + * Copies the upper 3x3 elements of a mat4 into a mat3 + * + * Params: + * mat - mat4 containing values to copy + * dest - Optional, mat3 receiving copied values + * + * Returns: + * dest is specified, a new mat3 otherwise + */ +mat4.toMat3 = function(mat, dest) { + if(!dest) { dest = mat3.create(); } + + dest[0] = mat[0]; + dest[1] = mat[1]; + dest[2] = mat[2]; + dest[3] = mat[4]; + dest[4] = mat[5]; + dest[5] = mat[6]; + dest[6] = mat[8]; + dest[7] = mat[9]; + dest[8] = mat[10]; + + return dest; +}; + +/* + * mat4.toInverseMat3 + * Calculates the inverse of the upper 3x3 elements of a mat4 and copies the result into a mat3 + * The resulting matrix is useful for calculating transformed normals + * + * Params: + * mat - mat4 containing values to invert and copy + * dest - Optional, mat3 receiving values + * + * Returns: + * dest is specified, a new mat3 otherwise + */ +mat4.toInverseMat3 = function(mat, dest) { + // Cache the matrix values (makes for huge speed increases!) + var a00 = mat[0], a01 = mat[1], a02 = mat[2]; + var a10 = mat[4], a11 = mat[5], a12 = mat[6]; + var a20 = mat[8], a21 = mat[9], a22 = mat[10]; + + var b01 = a22*a11-a12*a21; + var b11 = -a22*a10+a12*a20; + var b21 = a21*a10-a11*a20; + + var d = a00*b01 + a01*b11 + a02*b21; + if (!d) { return null; } + var id = 1/d; + + if(!dest) { dest = mat3.create(); } + + dest[0] = b01*id; + dest[1] = (-a22*a01 + a02*a21)*id; + dest[2] = (a12*a01 - a02*a11)*id; + dest[3] = b11*id; + dest[4] = (a22*a00 - a02*a20)*id; + dest[5] = (-a12*a00 + a02*a10)*id; + dest[6] = b21*id; + dest[7] = (-a21*a00 + a01*a20)*id; + dest[8] = (a11*a00 - a01*a10)*id; + + return dest; +}; + +/* + * mat4.multiply + * Performs a matrix multiplication + * + * Params: + * mat - mat4, first operand + * mat2 - mat4, second operand + * dest - Optional, mat4 receiving operation result. If not specified result is written to mat + * + * Returns: + * dest if specified, mat otherwise + */ +mat4.multiply = function(mat, mat2, dest) { + if(!dest) { dest = mat; } + + // Cache the matrix values (makes for huge speed increases!) + var a00 = mat[0], a01 = mat[1], a02 = mat[2], a03 = mat[3]; + var a10 = mat[4], a11 = mat[5], a12 = mat[6], a13 = mat[7]; + var a20 = mat[8], a21 = mat[9], a22 = mat[10], a23 = mat[11]; + var a30 = mat[12], a31 = mat[13], a32 = mat[14], a33 = mat[15]; + + var b00 = mat2[0], b01 = mat2[1], b02 = mat2[2], b03 = mat2[3]; + var b10 = mat2[4], b11 = mat2[5], b12 = mat2[6], b13 = mat2[7]; + var b20 = mat2[8], b21 = mat2[9], b22 = mat2[10], b23 = mat2[11]; + var b30 = mat2[12], b31 = mat2[13], b32 = mat2[14], b33 = mat2[15]; + + dest[0] = b00*a00 + b01*a10 + b02*a20 + b03*a30; + dest[1] = b00*a01 + b01*a11 + b02*a21 + b03*a31; + dest[2] = b00*a02 + b01*a12 + b02*a22 + b03*a32; + dest[3] = b00*a03 + b01*a13 + b02*a23 + b03*a33; + dest[4] = b10*a00 + b11*a10 + b12*a20 + b13*a30; + dest[5] = b10*a01 + b11*a11 + b12*a21 + b13*a31; + dest[6] = b10*a02 + b11*a12 + b12*a22 + b13*a32; + dest[7] = b10*a03 + b11*a13 + b12*a23 + b13*a33; + dest[8] = b20*a00 + b21*a10 + b22*a20 + b23*a30; + dest[9] = b20*a01 + b21*a11 + b22*a21 + b23*a31; + dest[10] = b20*a02 + b21*a12 + b22*a22 + b23*a32; + dest[11] = b20*a03 + b21*a13 + b22*a23 + b23*a33; + dest[12] = b30*a00 + b31*a10 + b32*a20 + b33*a30; + dest[13] = b30*a01 + b31*a11 + b32*a21 + b33*a31; + dest[14] = b30*a02 + b31*a12 + b32*a22 + b33*a32; + dest[15] = b30*a03 + b31*a13 + b32*a23 + b33*a33; + + return dest; +}; + +/* + * mat4.multiplyVec3 + * Transforms a vec3 with the given matrix + * 4th vector component is implicitly '1' + * + * Params: + * mat - mat4 to transform the vector with + * vec - vec3 to transform + * dest - Optional, vec3 receiving operation result. If not specified result is written to vec + * + * Returns: + * dest if specified, vec otherwise + */ +mat4.multiplyVec3 = function(mat, vec, dest) { + if(!dest) { dest = vec; } + + var x = vec[0], y = vec[1], z = vec[2]; + + dest[0] = mat[0]*x + mat[4]*y + mat[8]*z + mat[12]; + dest[1] = mat[1]*x + mat[5]*y + mat[9]*z + mat[13]; + dest[2] = mat[2]*x + mat[6]*y + mat[10]*z + mat[14]; + + return dest; +}; + +/* + * mat4.multiplyVec4 + * Transforms a vec4 with the given matrix + * + * Params: + * mat - mat4 to transform the vector with + * vec - vec4 to transform + * dest - Optional, vec4 receiving operation result. If not specified result is written to vec + * + * Returns: + * dest if specified, vec otherwise + */ +mat4.multiplyVec4 = function(mat, vec, dest) { + if(!dest) { dest = vec; } + + var x = vec[0], y = vec[1], z = vec[2], w = vec[3]; + + dest[0] = mat[0]*x + mat[4]*y + mat[8]*z + mat[12]*w; + dest[1] = mat[1]*x + mat[5]*y + mat[9]*z + mat[13]*w; + dest[2] = mat[2]*x + mat[6]*y + mat[10]*z + mat[14]*w; + dest[3] = mat[3]*x + mat[7]*y + mat[11]*z + mat[15]*w; + + return dest; +}; + +/* + * mat4.translate + * Translates a matrix by the given vector + * + * Params: + * mat - mat4 to translate + * vec - vec3 specifying the translation + * dest - Optional, mat4 receiving operation result. If not specified result is written to mat + * + * Returns: + * dest if specified, mat otherwise + */ +mat4.translate = function(mat, vec, dest) { + var x = vec[0], y = vec[1], z = vec[2]; + + if(!dest || mat == dest) { + mat[12] = mat[0]*x + mat[4]*y + mat[8]*z + mat[12]; + mat[13] = mat[1]*x + mat[5]*y + mat[9]*z + mat[13]; + mat[14] = mat[2]*x + mat[6]*y + mat[10]*z + mat[14]; + mat[15] = mat[3]*x + mat[7]*y + mat[11]*z + mat[15]; + return mat; + } + + var a00 = mat[0], a01 = mat[1], a02 = mat[2], a03 = mat[3]; + var a10 = mat[4], a11 = mat[5], a12 = mat[6], a13 = mat[7]; + var a20 = mat[8], a21 = mat[9], a22 = mat[10], a23 = mat[11]; + + dest[0] = a00; + dest[1] = a01; + dest[2] = a02; + dest[3] = a03; + dest[4] = a10; + dest[5] = a11; + dest[6] = a12; + dest[7] = a13; + dest[8] = a20; + dest[9] = a21; + dest[10] = a22; + dest[11] = a23; + + dest[12] = a00*x + a10*y + a20*z + mat[12]; + dest[13] = a01*x + a11*y + a21*z + mat[13]; + dest[14] = a02*x + a12*y + a22*z + mat[14]; + dest[15] = a03*x + a13*y + a23*z + mat[15]; + return dest; +}; + +/* + * mat4.scale + * Scales a matrix by the given vector + * + * Params: + * mat - mat4 to scale + * vec - vec3 specifying the scale for each axis + * dest - Optional, mat4 receiving operation result. If not specified result is written to mat + * + * Returns: + * dest if specified, mat otherwise + */ +mat4.scale = function(mat, vec, dest) { + var x = vec[0], y = vec[1], z = vec[2]; + + if(!dest || mat == dest) { + mat[0] *= x; + mat[1] *= x; + mat[2] *= x; + mat[3] *= x; + mat[4] *= y; + mat[5] *= y; + mat[6] *= y; + mat[7] *= y; + mat[8] *= z; + mat[9] *= z; + mat[10] *= z; + mat[11] *= z; + return mat; + } + + dest[0] = mat[0]*x; + dest[1] = mat[1]*x; + dest[2] = mat[2]*x; + dest[3] = mat[3]*x; + dest[4] = mat[4]*y; + dest[5] = mat[5]*y; + dest[6] = mat[6]*y; + dest[7] = mat[7]*y; + dest[8] = mat[8]*z; + dest[9] = mat[9]*z; + dest[10] = mat[10]*z; + dest[11] = mat[11]*z; + dest[12] = mat[12]; + dest[13] = mat[13]; + dest[14] = mat[14]; + dest[15] = mat[15]; + return dest; +}; + +/* + * mat4.rotate + * Rotates a matrix by the given angle around the specified axis + * If rotating around a primary axis (X,Y,Z) one of the specialized rotation functions should be used instead for performance + * + * Params: + * mat - mat4 to rotate + * angle - angle (in radians) to rotate + * axis - vec3 representing the axis to rotate around + * dest - Optional, mat4 receiving operation result. If not specified result is written to mat + * + * Returns: + * dest if specified, mat otherwise + */ +mat4.rotate = function(mat, angle, axis, dest) { + var x = axis[0], y = axis[1], z = axis[2]; + var len = Math.sqrt(x*x + y*y + z*z); + if (!len) { return null; } + if (len != 1) { + len = 1 / len; + x *= len; + y *= len; + z *= len; + } + + var s = Math.sin(angle); + var c = Math.cos(angle); + var t = 1-c; + + // Cache the matrix values (makes for huge speed increases!) + var a00 = mat[0], a01 = mat[1], a02 = mat[2], a03 = mat[3]; + var a10 = mat[4], a11 = mat[5], a12 = mat[6], a13 = mat[7]; + var a20 = mat[8], a21 = mat[9], a22 = mat[10], a23 = mat[11]; + + // Construct the elements of the rotation matrix + var b00 = x*x*t + c, b01 = y*x*t + z*s, b02 = z*x*t - y*s; + var b10 = x*y*t - z*s, b11 = y*y*t + c, b12 = z*y*t + x*s; + var b20 = x*z*t + y*s, b21 = y*z*t - x*s, b22 = z*z*t + c; + + if(!dest) { + dest = mat; + } else if(mat != dest) { // If the source and destination differ, copy the unchanged last row + dest[12] = mat[12]; + dest[13] = mat[13]; + dest[14] = mat[14]; + dest[15] = mat[15]; + } + + // Perform rotation-specific matrix multiplication + dest[0] = a00*b00 + a10*b01 + a20*b02; + dest[1] = a01*b00 + a11*b01 + a21*b02; + dest[2] = a02*b00 + a12*b01 + a22*b02; + dest[3] = a03*b00 + a13*b01 + a23*b02; + + dest[4] = a00*b10 + a10*b11 + a20*b12; + dest[5] = a01*b10 + a11*b11 + a21*b12; + dest[6] = a02*b10 + a12*b11 + a22*b12; + dest[7] = a03*b10 + a13*b11 + a23*b12; + + dest[8] = a00*b20 + a10*b21 + a20*b22; + dest[9] = a01*b20 + a11*b21 + a21*b22; + dest[10] = a02*b20 + a12*b21 + a22*b22; + dest[11] = a03*b20 + a13*b21 + a23*b22; + return dest; +}; + +/* + * mat4.rotateX + * Rotates a matrix by the given angle around the X axis + * + * Params: + * mat - mat4 to rotate + * angle - angle (in radians) to rotate + * dest - Optional, mat4 receiving operation result. If not specified result is written to mat + * + * Returns: + * dest if specified, mat otherwise + */ +mat4.rotateX = function(mat, angle, dest) { + var s = Math.sin(angle); + var c = Math.cos(angle); + + // Cache the matrix values (makes for huge speed increases!) + var a10 = mat[4], a11 = mat[5], a12 = mat[6], a13 = mat[7]; + var a20 = mat[8], a21 = mat[9], a22 = mat[10], a23 = mat[11]; + + if(!dest) { + dest = mat; + } else if(mat != dest) { // If the source and destination differ, copy the unchanged rows + dest[0] = mat[0]; + dest[1] = mat[1]; + dest[2] = mat[2]; + dest[3] = mat[3]; + + dest[12] = mat[12]; + dest[13] = mat[13]; + dest[14] = mat[14]; + dest[15] = mat[15]; + } + + // Perform axis-specific matrix multiplication + dest[4] = a10*c + a20*s; + dest[5] = a11*c + a21*s; + dest[6] = a12*c + a22*s; + dest[7] = a13*c + a23*s; + + dest[8] = a10*-s + a20*c; + dest[9] = a11*-s + a21*c; + dest[10] = a12*-s + a22*c; + dest[11] = a13*-s + a23*c; + return dest; +}; + +/* + * mat4.rotateY + * Rotates a matrix by the given angle around the Y axis + * + * Params: + * mat - mat4 to rotate + * angle - angle (in radians) to rotate + * dest - Optional, mat4 receiving operation result. If not specified result is written to mat + * + * Returns: + * dest if specified, mat otherwise + */ +mat4.rotateY = function(mat, angle, dest) { + var s = Math.sin(angle); + var c = Math.cos(angle); + + // Cache the matrix values (makes for huge speed increases!) + var a00 = mat[0], a01 = mat[1], a02 = mat[2], a03 = mat[3]; + var a20 = mat[8], a21 = mat[9], a22 = mat[10], a23 = mat[11]; + + if(!dest) { + dest = mat; + } else if(mat != dest) { // If the source and destination differ, copy the unchanged rows + dest[4] = mat[4]; + dest[5] = mat[5]; + dest[6] = mat[6]; + dest[7] = mat[7]; + + dest[12] = mat[12]; + dest[13] = mat[13]; + dest[14] = mat[14]; + dest[15] = mat[15]; + } + + // Perform axis-specific matrix multiplication + dest[0] = a00*c + a20*-s; + dest[1] = a01*c + a21*-s; + dest[2] = a02*c + a22*-s; + dest[3] = a03*c + a23*-s; + + dest[8] = a00*s + a20*c; + dest[9] = a01*s + a21*c; + dest[10] = a02*s + a22*c; + dest[11] = a03*s + a23*c; + return dest; +}; + +/* + * mat4.rotateZ + * Rotates a matrix by the given angle around the Z axis + * + * Params: + * mat - mat4 to rotate + * angle - angle (in radians) to rotate + * dest - Optional, mat4 receiving operation result. If not specified result is written to mat + * + * Returns: + * dest if specified, mat otherwise + */ +mat4.rotateZ = function(mat, angle, dest) { + var s = Math.sin(angle); + var c = Math.cos(angle); + + // Cache the matrix values (makes for huge speed increases!) + var a00 = mat[0], a01 = mat[1], a02 = mat[2], a03 = mat[3]; + var a10 = mat[4], a11 = mat[5], a12 = mat[6], a13 = mat[7]; + + if(!dest) { + dest = mat; + } else if(mat != dest) { // If the source and destination differ, copy the unchanged last row + dest[8] = mat[8]; + dest[9] = mat[9]; + dest[10] = mat[10]; + dest[11] = mat[11]; + + dest[12] = mat[12]; + dest[13] = mat[13]; + dest[14] = mat[14]; + dest[15] = mat[15]; + } + + // Perform axis-specific matrix multiplication + dest[0] = a00*c + a10*s; + dest[1] = a01*c + a11*s; + dest[2] = a02*c + a12*s; + dest[3] = a03*c + a13*s; + + dest[4] = a00*-s + a10*c; + dest[5] = a01*-s + a11*c; + dest[6] = a02*-s + a12*c; + dest[7] = a03*-s + a13*c; + + return dest; +}; + +/* + * mat4.frustum + * Generates a frustum matrix with the given bounds + * + * Params: + * left, right - scalar, left and right bounds of the frustum + * bottom, top - scalar, bottom and top bounds of the frustum + * near, far - scalar, near and far bounds of the frustum + * dest - Optional, mat4 frustum matrix will be written into + * + * Returns: + * dest if specified, a new mat4 otherwise + */ +mat4.frustum = function(left, right, bottom, top, near, far, dest) { + if(!dest) { dest = mat4.create(); } + var rl = (right - left); + var tb = (top - bottom); + var fn = (far - near); + dest[0] = (near*2) / rl; + dest[1] = 0; + dest[2] = 0; + dest[3] = 0; + dest[4] = 0; + dest[5] = (near*2) / tb; + dest[6] = 0; + dest[7] = 0; + dest[8] = (right + left) / rl; + dest[9] = (top + bottom) / tb; + dest[10] = -(far + near) / fn; + dest[11] = -1; + dest[12] = 0; + dest[13] = 0; + dest[14] = -(far*near*2) / fn; + dest[15] = 0; + return dest; +}; + +/* + * mat4.perspective + * Generates a perspective projection matrix with the given bounds + * + * Params: + * fovy - scalar, vertical field of view + * aspect - scalar, aspect ratio. typically viewport width/height + * near, far - scalar, near and far bounds of the frustum + * dest - Optional, mat4 frustum matrix will be written into + * + * Returns: + * dest if specified, a new mat4 otherwise + */ +mat4.perspective = function(fovy, aspect, near, far, dest) { + var top = near*Math.tan(fovy*Math.PI / 360.0); + var right = top*aspect; + return mat4.frustum(-right, right, -top, top, near, far, dest); +}; + +/* + * mat4.ortho + * Generates a orthogonal projection matrix with the given bounds + * + * Params: + * left, right - scalar, left and right bounds of the frustum + * bottom, top - scalar, bottom and top bounds of the frustum + * near, far - scalar, near and far bounds of the frustum + * dest - Optional, mat4 frustum matrix will be written into + * + * Returns: + * dest if specified, a new mat4 otherwise + */ +mat4.ortho = function(left, right, bottom, top, near, far, dest) { + if(!dest) { dest = mat4.create(); } + var rl = (right - left); + var tb = (top - bottom); + var fn = (far - near); + dest[0] = 2 / rl; + dest[1] = 0; + dest[2] = 0; + dest[3] = 0; + dest[4] = 0; + dest[5] = 2 / tb; + dest[6] = 0; + dest[7] = 0; + dest[8] = 0; + dest[9] = 0; + dest[10] = -2 / fn; + dest[11] = 0; + dest[12] = -(left + right) / rl; + dest[13] = -(top + bottom) / tb; + dest[14] = -(far + near) / fn; + dest[15] = 1; + return dest; +}; + +/* + * mat4.ortho + * Generates a look-at matrix with the given eye position, focal point, and up axis + * + * Params: + * eye - vec3, position of the viewer + * center - vec3, point the viewer is looking at + * up - vec3 pointing "up" + * dest - Optional, mat4 frustum matrix will be written into + * + * Returns: + * dest if specified, a new mat4 otherwise + */ +mat4.lookAt = function(eye, center, up, dest) { + if(!dest) { dest = mat4.create(); } + + var eyex = eye[0], + eyey = eye[1], + eyez = eye[2], + upx = up[0], + upy = up[1], + upz = up[2], + centerx = center[0], + centery = center[1], + centerz = center[2]; + + if (eyex == centerx && eyey == centery && eyez == centerz) { + return mat4.identity(dest); + } + + var z0,z1,z2,x0,x1,x2,y0,y1,y2,len; + + //vec3.direction(eye, center, z); + z0 = eyex - center[0]; + z1 = eyey - center[1]; + z2 = eyez - center[2]; + + // normalize (no check needed for 0 because of early return) + len = 1/Math.sqrt(z0*z0 + z1*z1 + z2*z2); + z0 *= len; + z1 *= len; + z2 *= len; + + //vec3.normalize(vec3.cross(up, z, x)); + x0 = upy*z2 - upz*z1; + x1 = upz*z0 - upx*z2; + x2 = upx*z1 - upy*z0; + len = Math.sqrt(x0*x0 + x1*x1 + x2*x2); + if (!len) { + x0 = 0; + x1 = 0; + x2 = 0; + } else { + len = 1/len; + x0 *= len; + x1 *= len; + x2 *= len; + }; + + //vec3.normalize(vec3.cross(z, x, y)); + y0 = z1*x2 - z2*x1; + y1 = z2*x0 - z0*x2; + y2 = z0*x1 - z1*x0; + + len = Math.sqrt(y0*y0 + y1*y1 + y2*y2); + if (!len) { + y0 = 0; + y1 = 0; + y2 = 0; + } else { + len = 1/len; + y0 *= len; + y1 *= len; + y2 *= len; + } + + dest[0] = x0; + dest[1] = y0; + dest[2] = z0; + dest[3] = 0; + dest[4] = x1; + dest[5] = y1; + dest[6] = z1; + dest[7] = 0; + dest[8] = x2; + dest[9] = y2; + dest[10] = z2; + dest[11] = 0; + dest[12] = -(x0*eyex + x1*eyey + x2*eyez); + dest[13] = -(y0*eyex + y1*eyey + y2*eyez); + dest[14] = -(z0*eyex + z1*eyey + z2*eyez); + dest[15] = 1; + + return dest; +}; + +/* + * mat4.str + * Returns a string representation of a mat4 + * + * Params: + * mat - mat4 to represent as a string + * + * Returns: + * string representation of mat + */ +mat4.str = function(mat) { + return '[' + mat[0] + ', ' + mat[1] + ', ' + mat[2] + ', ' + mat[3] + + ',\n '+ mat[4] + ', ' + mat[5] + ', ' + mat[6] + ', ' + mat[7] + + ',\n '+ mat[8] + ', ' + mat[9] + ', ' + mat[10] + ', ' + mat[11] + + ',\n '+ mat[12] + ', ' + mat[13] + ', ' + mat[14] + ', ' + mat[15] + ']'; +}; + +/* + * quat4 - Quaternions + */ +quat4 = {}; + +/* + * quat4.create + * Creates a new instance of a quat4 using the default array type + * Any javascript array containing at least 4 numeric elements can serve as a quat4 + * + * Params: + * quat - Optional, quat4 containing values to initialize with + * + * Returns: + * New quat4 + */ +quat4.create = function(quat) { + var dest; + + if(quat) { + dest = new glMatrixArrayType(4); + dest[0] = quat[0]; + dest[1] = quat[1]; + dest[2] = quat[2]; + dest[3] = quat[3]; + } else { + if(glMatrixArrayType === Array) + dest = new glMatrixArrayType([0,0,0,0]); + else + dest = new glMatrixArrayType(4); + } + + return dest; +}; + +/* + * quat4.set + * Copies the values of one quat4 to another + * + * Params: + * quat - quat4 containing values to copy + * dest - quat4 receiving copied values + * + * Returns: + * dest + */ +quat4.set = function(quat, dest) { + dest[0] = quat[0]; + dest[1] = quat[1]; + dest[2] = quat[2]; + dest[3] = quat[3]; + + return dest; +}; + +/* + * quat4.calculateW + * Calculates the W component of a quat4 from the X, Y, and Z components. + * Assumes that quaternion is 1 unit in length. + * Any existing W component will be ignored. + * + * Params: + * quat - quat4 to calculate W component of + * dest - Optional, quat4 receiving calculated values. If not specified result is written to quat + * + * Returns: + * dest if specified, quat otherwise + */ +quat4.calculateW = function(quat, dest) { + var x = quat[0], y = quat[1], z = quat[2]; + + if(!dest || quat == dest) { + quat[3] = -Math.sqrt(Math.abs(1.0 - x*x - y*y - z*z)); + return quat; + } + dest[0] = x; + dest[1] = y; + dest[2] = z; + dest[3] = -Math.sqrt(Math.abs(1.0 - x*x - y*y - z*z)); + return dest; +}; + +/* + * quat4.inverse + * Calculates the inverse of a quat4 + * + * Params: + * quat - quat4 to calculate inverse of + * dest - Optional, quat4 receiving inverse values. If not specified result is written to quat + * + * Returns: + * dest if specified, quat otherwise + */ +quat4.inverse = function(quat, dest) { + if(!dest || quat == dest) { + quat[0] *= -1; + quat[1] *= -1; + quat[2] *= -1; + return quat; + } + dest[0] = -quat[0]; + dest[1] = -quat[1]; + dest[2] = -quat[2]; + dest[3] = quat[3]; + return dest; +}; + +/* + * quat4.length + * Calculates the length of a quat4 + * + * Params: + * quat - quat4 to calculate length of + * + * Returns: + * Length of quat + */ +quat4.length = function(quat) { + var x = quat[0], y = quat[1], z = quat[2], w = quat[3]; + return Math.sqrt(x*x + y*y + z*z + w*w); +}; + +/* + * quat4.normalize + * Generates a unit quaternion of the same direction as the provided quat4 + * If quaternion length is 0, returns [0, 0, 0, 0] + * + * Params: + * quat - quat4 to normalize + * dest - Optional, quat4 receiving operation result. If not specified result is written to quat + * + * Returns: + * dest if specified, quat otherwise + */ +quat4.normalize = function(quat, dest) { + if(!dest) { dest = quat; } + + var x = quat[0], y = quat[1], z = quat[2], w = quat[3]; + var len = Math.sqrt(x*x + y*y + z*z + w*w); + if(len == 0) { + dest[0] = 0; + dest[1] = 0; + dest[2] = 0; + dest[3] = 0; + return dest; + } + len = 1/len; + dest[0] = x * len; + dest[1] = y * len; + dest[2] = z * len; + dest[3] = w * len; + + return dest; +>>>>>>> bc7283003570f6aa9b9930de2e1208cd18656951 +}; + +/** + * Adds two quat's + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @returns {quat} out + * @function + */ +quat.add = vec4.add; + +/** + * Multiplies two quat's + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @returns {quat} out + */ +quat.multiply = function(out, a, b) { + var ax = a[0], ay = a[1], az = a[2], aw = a[3], + bx = b[0], by = b[1], bz = b[2], bw = b[3]; + + out[0] = ax * bw + aw * bx + ay * bz - az * by; + out[1] = ay * bw + aw * by + az * bx - ax * bz; + out[2] = az * bw + aw * bz + ax * by - ay * bx; + out[3] = aw * bw - ax * bx - ay * by - az * bz; + return out; +}; + +/** + * Alias for {@link quat.multiply} + * @function + */ +quat.mul = quat.multiply; + +/** + * Scales a quat by a scalar number + * + * @param {quat} out the receiving vector + * @param {quat} a the vector to scale * @param {Number} b amount to scale the vector by * @returns {quat} out * @function @@ -7385,19 +8237,698 @@ define('rasterizer',["tracer"], function(Tracer) { } } } - }; + }; + } + }; + + return (Rasterizer); +}); + +/* jshint undef: true, unused: true, browser:true, devel: true, -W041: false */ +/* global define */ + +define('skeletonizer',[],function() { + "use strict"; + + /* @preserve ASM BEGIN */ + function Skeletonizer(stdlib, foreign, buffer) { + "use asm"; + + var images = new stdlib.Uint8Array(buffer), + size = foreign.size | 0, + imul = stdlib.Math.imul; + + function erode(inImagePtr, outImagePtr) { + inImagePtr = inImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var v = 0, + u = 0, + sum = 0, + yStart1 = 0, + yStart2 = 0, + xStart1 = 0, + xStart2 = 0, + offset = 0; + + for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) { + offset = (offset + size) | 0; + for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) { + yStart1 = (offset - size) | 0; + yStart2 = (offset + size) | 0; + xStart1 = (u - 1) | 0; + xStart2 = (u + 1) | 0; + sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; + if ((sum | 0) == (5 | 0)) { + images[(outImagePtr + offset + u) | 0] = 1; + } else { + images[(outImagePtr + offset + u) | 0] = 0; + } + } + } + return; + } + + function subtract(aImagePtr, bImagePtr, outImagePtr) { + aImagePtr = aImagePtr | 0; + bImagePtr = bImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = (length - 1) | 0; + images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0; + } + } + + function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) { + aImagePtr = aImagePtr | 0; + bImagePtr = bImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = (length - 1) | 0; + images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0; + } + } + + function countNonZero(imagePtr) { + imagePtr = imagePtr | 0; + + var sum = 0, + length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = (length - 1) | 0; + sum = ((sum | 0) + (images[(imagePtr + length) | 0] | 0)) | 0; + } + + return (sum | 0); + } + + function init(imagePtr, value) { + imagePtr = imagePtr | 0; + value = value | 0; + + var length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = (length - 1) | 0; + images[(imagePtr + length) | 0] = value; + } + } + + function dilate(inImagePtr, outImagePtr) { + inImagePtr = inImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var v = 0, + u = 0, + sum = 0, + yStart1 = 0, + yStart2 = 0, + xStart1 = 0, + xStart2 = 0, + offset = 0; + + for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) { + offset = (offset + size) | 0; + for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) { + yStart1 = (offset - size) | 0; + yStart2 = (offset + size) | 0; + xStart1 = (u - 1) | 0; + xStart2 = (u + 1) | 0; + sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; + if ((sum | 0) > (0 | 0)) { + images[(outImagePtr + offset + u) | 0] = 1; + } else { + images[(outImagePtr + offset + u) | 0] = 0; + } + } + } + return; + } + + function memcpy(srcImagePtr, dstImagePtr) { + srcImagePtr = srcImagePtr | 0; + dstImagePtr = dstImagePtr | 0; + + var length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = (length - 1) | 0; + images[(dstImagePtr + length) | 0] = (images[(srcImagePtr + length) | 0] | 0); + } + } + + function zeroBorder(imagePtr) { + imagePtr = imagePtr | 0; + + var x = 0, + y = 0; + + for ( x = 0; (x | 0) < ((size - 1) | 0); x = (x + 1) | 0) { + images[(imagePtr + x) | 0] = 0; + images[(imagePtr + y) | 0] = 0; + y = ((y + size) - 1) | 0; + images[(imagePtr + y) | 0] = 0; + y = (y + 1) | 0; + } + for ( x = 0; (x | 0) < (size | 0); x = (x + 1) | 0) { + images[(imagePtr + y) | 0] = 0; + y = (y + 1) | 0; + } + } + + function skeletonize() { + var subImagePtr = 0, + erodedImagePtr = 0, + tempImagePtr = 0, + skelImagePtr = 0, + sum = 0, + done = 0; + + erodedImagePtr = imul(size, size) | 0; + tempImagePtr = (erodedImagePtr + erodedImagePtr) | 0; + skelImagePtr = (tempImagePtr + erodedImagePtr) | 0; + + // init skel-image + init(skelImagePtr, 0); + zeroBorder(subImagePtr); + + do { + erode(subImagePtr, erodedImagePtr); + dilate(erodedImagePtr, tempImagePtr); + subtract(subImagePtr, tempImagePtr, tempImagePtr); + bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr); + memcpy(erodedImagePtr, subImagePtr); + sum = countNonZero(subImagePtr) | 0; + done = ((sum | 0) == 0 | 0); + } while(!done); + } + + return { + skeletonize : skeletonize + }; + } + /* @preserve ASM END */ + + return Skeletonizer; +}); + +/* jshint undef: true, unused: true, browser:true, devel: true */ +/* global define */ + +define('image_debug',[],function() { + "use strict"; + + return { + drawRect: function(pos, size, ctx, style){ + ctx.strokeStyle = style.color; + ctx.fillStyle = style.color; + ctx.lineWidth = 1; + ctx.beginPath(); + ctx.strokeRect(pos.x, pos.y, size.x, size.y); + }, + drawPath: function(path, def, ctx, style) { + ctx.strokeStyle = style.color; + ctx.fillStyle = style.color; + ctx.lineWidth = style.lineWidth; + ctx.beginPath(); + ctx.moveTo(path[0][def.x], path[0][def.y]); + for (var j = 1; j < path.length; j++) { + ctx.lineTo(path[j][def.x], path[j][def.y]); + } + ctx.closePath(); + ctx.stroke(); + }, + drawImage: function(imageData, size, ctx) { + var canvasData = ctx.getImageData(0, 0, size.x, size.y), + data = canvasData.data, + imageDataPos = imageData.length, + canvasDataPos = data.length, + value; + + if (canvasDataPos/imageDataPos !== 4) { + return false; + } + while(imageDataPos--){ + value = imageData[imageDataPos]; + data[--canvasDataPos] = 255; + data[--canvasDataPos] = value; + data[--canvasDataPos] = value; + data[--canvasDataPos] = value; + } + ctx.putImageData(canvasData, 0, 0); + return true; + } + }; + +}); + +/* jshint undef: true, unused: true, browser:true, devel: true */ +/* global define, mat2, vec2 */ + +define("barcode_locator", ["image_wrapper", "cv_utils", "rasterizer", "tracer", "skeletonizer", "array_helper", "image_debug"], +function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, ImageDebug) { + + var _config, + _currentImageWrapper, + _skelImageWrapper, + _subImageWrapper, + _labelImageWrapper, + _patchGrid, + _patchLabelGrid, + _imageToPatchGrid, + _binaryImageWrapper, + _patchSize, + _canvasContainer = { + ctx : { + binary : null + }, + dom : { + binary : null + } + }, + _numPatches = {x: 0, y: 0}, + _inputImageWrapper, + _skeletonizer, + self = this; + + function initBuffers() { + var skeletonImageData; + + if (_config.halfSample) { + _currentImageWrapper = new ImageWrapper({ + x : _inputImageWrapper.size.x / 2 | 0, + y : _inputImageWrapper.size.y / 2 | 0 + }); + } else { + _currentImageWrapper = _inputImageWrapper; + } + + _patchSize = CVUtils.calculatePatchSize(_config.patchSize, _currentImageWrapper.size); + + _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0; + _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0; + + _binaryImageWrapper = new ImageWrapper(_currentImageWrapper.size, undefined, Uint8Array, false); + + _labelImageWrapper = new ImageWrapper(_patchSize, undefined, Array, true); + + skeletonImageData = new ArrayBuffer(64*1024); + _subImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y)); + _skelImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true); + _skeletonizer = skeletonizer(self, { + size : _patchSize.x + }, skeletonImageData); + + _imageToPatchGrid = new ImageWrapper({ + x : (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0, + y : (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0 + }, undefined, Array, true); + _patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true); + _patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true); + } + + function initCanvas() { + if (_config.useWorker || typeof document === 'undefined') { + return; + } + _canvasContainer.dom.binary = document.createElement("canvas"); + _canvasContainer.dom.binary.className = "binaryBuffer"; + if (_config.showCanvas === true) { + document.querySelector("#debug").appendChild(_canvasContainer.dom.binary); + } + _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext("2d"); + _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x; + _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y; + } + + /** + * Creates a bounding box which encloses all the given patches + * @returns {Array} The minimal bounding box + */ + function boxFromPatches(patches) { + var overAvg, i, j, patch, transMat, minx = _binaryImageWrapper.size.x, miny = _binaryImageWrapper.size.y, maxx = -_binaryImageWrapper.size.x, maxy = -_binaryImageWrapper.size.y, box, scale; + + // draw all patches which are to be taken into consideration + overAvg = 0; + for ( i = 0; i < patches.length; i++) { + patch = patches[i]; + overAvg += patch.rad; + if (_config.showPatches) { + ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "red"}); + } + } + + overAvg /= patches.length; + overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90; + if (overAvg < 0) { + overAvg += 180; + } + + //console.log(overAvg); + overAvg = (180 - overAvg) * Math.PI / 180; + transMat = mat2.create([Math.cos(overAvg), -Math.sin(overAvg), Math.sin(overAvg), Math.cos(overAvg)]); + + // iterate over patches and rotate by angle + for ( i = 0; i < patches.length; i++) { + patch = patches[i]; + for ( j = 0; j < 4; j++) { + mat2.xVec2(transMat, patch.box[j]); + } + + if (_config.boxFromPatches.showTransformed) { + ImageDebug.drawPath(patch.box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#99ff00', lineWidth: 2}); + } + } + + // find bounding box + for ( i = 0; i < patches.length; i++) { + patch = patches[i]; + for ( j = 0; j < 4; j++) { + if (patch.box[j][0] < minx) { + minx = patch.box[j][0]; + } + if (patch.box[j][0] > maxx) { + maxx = patch.box[j][0]; + } + if (patch.box[j][1] < miny) { + miny = patch.box[j][1]; + } + if (patch.box[j][1] > maxy) { + maxy = patch.box[j][1]; + } + } + } + + box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]]; + + if (_config.boxFromPatches.showTransformedBox) { + ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2}); + } + + scale = _config.halfSample ? 2 : 1; + // reverse rotation; + transMat = mat2.inverse(transMat); + for ( j = 0; j < 4; j++) { + mat2.xVec2(transMat, box[j]); + } + + if (_config.boxFromPatches.showBB) { + ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2}); + } + + for ( j = 0; j < 4; j++) { + vec2.scale(box[j], scale); + } + + return box; + } + + /** + * Creates a binary image of the current image + */ + function binarizeImage() { + CVUtils.otsuThreshold(_currentImageWrapper, _binaryImageWrapper); + _binaryImageWrapper.zeroBorder(); + if (_config.showCanvas) { + _binaryImageWrapper.show(_canvasContainer.dom.binary, 255); + } + } + + /** + * Iterate over the entire image + * extract patches + */ + function findPatches() { + var i, + j, + x, + y, + moments, + patchesFound = [], + rasterizer, + rasterResult, + patch; + for ( i = 0; i < _numPatches.x; i++) { + for ( j = 0; j < _numPatches.y; j++) { + + x = _subImageWrapper.size.x * i; + y = _subImageWrapper.size.y * j; + + // seperate parts + skeletonize(x, y); + + // Rasterize, find individual bars + _skelImageWrapper.zeroBorder(); + ArrayHelper.init(_labelImageWrapper.data, 0); + rasterizer = Rasterizer.create(_skelImageWrapper, _labelImageWrapper); + rasterResult = rasterizer.rasterize(0); + + if (_config.showLabels) { + _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), {x : x, y : y}); + } + + // calculate moments from the skeletonized patch + moments = _labelImageWrapper.moments(rasterResult.count); + + // extract eligible patches + patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y)); + } + } + + if (_config.showFoundPatches) { + for ( i = 0; i < patchesFound.length; i++) { + patch = patchesFound[i]; + ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "#99ff00", lineWidth: 2}); + } + } + + return patchesFound; + } + + /** + * Finds those connected areas which contain at least 6 patches + * and returns them ordered DESC by the number of contained patches + * @param {Number} maxLabel + */ + function findBiggestConnectedAreas(maxLabel){ + var i, + sum, + labelHist = [], + topLabels = []; + + for ( i = 0; i < maxLabel; i++) { + labelHist.push(0); + } + sum = _patchLabelGrid.data.length; + while (sum--) { + if (_patchLabelGrid.data[sum] > 0) { + labelHist[_patchLabelGrid.data[sum] - 1]++; + } + } + + labelHist = labelHist.map(function(val, idx) { + return { + val : val, + label : idx + 1 + }; + }); + + labelHist.sort(function(a, b) { + return b.val - a.val; + }); + + // extract top areas with at least 6 patches present + topLabels = labelHist.filter(function(el) { + return el.val >= 5; + }); + + return topLabels; + } + + /** + * + */ + function findBoxes(topLabels, maxLabel) { + var i, + j, + sum, + patches = [], + patch, + box, + boxes = [], + hsv = [0, 1, 1], + rgb = [0, 0, 0]; + + for ( i = 0; i < topLabels.length; i++) { + sum = _patchLabelGrid.data.length; + patches.length = 0; + while (sum--) { + if (_patchLabelGrid.data[sum] === topLabels[i].label) { + patch = _imageToPatchGrid.data[sum]; + patches.push(patch); + } + } + box = boxFromPatches(patches); + if (box) { + boxes.push(box); + + // draw patch-labels if requested + if (_config.showRemainingPatchLabels) { + for ( j = 0; j < patches.length; j++) { + patch = patches[j]; + hsv[0] = (topLabels[i].label / (maxLabel + 1)) * 360; + CVUtils.hsv2rgb(hsv, rgb); + ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); + } + } + } + } + return boxes; + } + + /** + * Find similar moments (via cluster) + * @param {Object} moments + */ + function similarMoments(moments) { + var clusters = CVUtils.cluster(moments, 0.90); + var topCluster = CVUtils.topGeneric(clusters, 1, function(e) { + return e.getPoints().length; + }); + var points = [], result = []; + if (topCluster.length === 1) { + points = topCluster[0].item.getPoints(); + for (var i = 0; i < points.length; i++) { + result.push(points[i].point); + } + } + return result; + } + + function skeletonize(x, y) { + _binaryImageWrapper.subImageAsCopy(_subImageWrapper, CVUtils.imageRef(x, y)); + _skeletonizer.skeletonize(); + + // Show skeleton if requested + if (_config.showSkeleton) { + _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, CVUtils.imageRef(x, y)); + } + } + + /** + * Extracts and describes those patches which seem to contain a barcode pattern + * @param {Array} moments + * @param {Object} patchPos, + * @param {Number} x + * @param {Number} y + * @returns {Array} list of patches + */ + function describePatch(moments, patchPos, x, y) { + var k, + avg, + sum = 0, + eligibleMoments = [], + matchingMoments, + patch, + patchesFound = [], + minComponentWeight = Math.ceil(_patchSize.x/3); + + if (moments.length >= 2) { + // only collect moments which's area covers at least minComponentWeight pixels. + for ( k = 0; k < moments.length; k++) { + if (moments[k].m00 > minComponentWeight) { + eligibleMoments.push(moments[k]); + } + } + + // if at least 2 moments are found which have at least minComponentWeights covered + if (eligibleMoments.length >= 2) { + sum = eligibleMoments.length; + matchingMoments = similarMoments(eligibleMoments); + avg = 0; + // determine the similarity of the moments + for ( k = 0; k < matchingMoments.length; k++) { + avg += matchingMoments[k].rad; + } + + // Only two of the moments are allowed not to fit into the equation + // add the patch to the set + if (matchingMoments.length > 1 && matchingMoments.length >= (eligibleMoments.length / 4) * 3 && matchingMoments.length > moments.length / 4) { + avg /= matchingMoments.length; + patch = { + index : patchPos[1] * _numPatches.x + patchPos[0], + pos : { + x : x, + y : y + }, + box : [vec2.create([x, y]), vec2.create([x + _subImageWrapper.size.x, y]), vec2.create([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), vec2.create([x, y + _subImageWrapper.size.y])], + moments : matchingMoments, + rad : avg, + vec : vec2.create([Math.cos(avg), Math.sin(avg)]) + }; + patchesFound.push(patch); + } + } } - }; + return patchesFound; + } - return (Rasterizer); -}); + /** + * finds patches which are connected and share the same orientation + * @param {Object} patchesFound + */ + function rasterizeAngularSimilarity(patchesFound) { + var label = 0, + threshold = 0.95, + currIdx = 0, + j, + patch, + hsv = [0, 1, 1], + rgb = [0, 0, 0]; -/* jshint undef: true, unused: true, browser:true, devel: true, -W041: false */ -/* global define */ + function notYetProcessed() { + var i; + for ( i = 0; i < _patchLabelGrid.data.length; i++) { + if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) { + return i; + } + } + return _patchLabelGrid.length; + } -define('skeletonizer',[],function() { - "use strict"; + function trace(currentIdx) { + var x, y, currentPatch, patch, idx, dir, current = { + x : currentIdx % _patchLabelGrid.size.x, + y : (currentIdx / _patchLabelGrid.size.x) | 0 + }, similarity; + + if (currentIdx < _patchLabelGrid.data.length) { + currentPatch = _imageToPatchGrid.data[currentIdx]; + // assign label + _patchLabelGrid.data[currentIdx] = label; + for ( dir = 0; dir < Tracer.searchDirections.length; dir++) { + y = current.y + Tracer.searchDirections[dir][0]; + x = current.x + Tracer.searchDirections[dir][1]; + idx = y * _patchLabelGrid.size.x + x; +<<<<<<< HEAD Math.imul = Math.imul || function(a, b) { var ah = (a >>> 16) & 0xffff; var al = a & 0xffff; @@ -7411,254 +8942,360 @@ define('skeletonizer',[],function() { /* @preserve ASM BEGIN */ function Skeletonizer(stdlib, foreign, buffer) { "use asm"; +======= + // continue if patch empty + if (_patchGrid.data[idx] === 0) { + _patchLabelGrid.data[idx] = Number.MAX_VALUE; + continue; + } +>>>>>>> bc7283003570f6aa9b9930de2e1208cd18656951 - var images = new stdlib.Uint8Array(buffer), - size = foreign.size | 0, - imul = stdlib.Math.imul; + patch = _imageToPatchGrid.data[idx]; + if (_patchLabelGrid.data[idx] === 0) { + similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec)); + if (similarity > threshold) { + trace(idx); + } + } + } + } + } + + // prepare for finding the right patches + ArrayHelper.init(_patchGrid.data, 0); + ArrayHelper.init(_patchLabelGrid.data, 0); + ArrayHelper.init(_imageToPatchGrid.data, null); - function erode(inImagePtr, outImagePtr) { - inImagePtr = inImagePtr | 0; - outImagePtr = outImagePtr | 0; + for ( j = 0; j < patchesFound.length; j++) { + patch = patchesFound[j]; + _imageToPatchGrid.data[patch.index] = patch; + _patchGrid.data[patch.index] = 1; + } - var v = 0, - u = 0, - sum = 0, - yStart1 = 0, - yStart2 = 0, - xStart1 = 0, - xStart2 = 0, - offset = 0; + // rasterize the patches found to determine area + _patchGrid.zeroBorder(); - for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) { - offset = (offset + size) | 0; - for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) { - yStart1 = (offset - size) | 0; - yStart2 = (offset + size) | 0; - xStart1 = (u - 1) | 0; - xStart2 = (u + 1) | 0; - sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; - if ((sum | 0) == (5 | 0)) { - images[(outImagePtr + offset + u) | 0] = 1; - } else { - images[(outImagePtr + offset + u) | 0] = 0; - } + while (( currIdx = notYetProcessed()) < _patchLabelGrid.data.length) { + label++; + trace(currIdx); + } + + // draw patch-labels if requested + if (_config.showPatchLabels) { + for ( j = 0; j < _patchLabelGrid.data.length; j++) { + if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) { + patch = _imageToPatchGrid.data[j]; + hsv[0] = (_patchLabelGrid.data[j] / (label + 1)) * 360; + CVUtils.hsv2rgb(hsv, rgb); + ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); } } - return; } + + return label; + } - function subtract(aImagePtr, bImagePtr, outImagePtr) { - aImagePtr = aImagePtr | 0; - bImagePtr = bImagePtr | 0; - outImagePtr = outImagePtr | 0; + return { + init : function(inputImageWrapper, config) { + _config = config; + _inputImageWrapper = inputImageWrapper; - var length = 0; + initBuffers(); + initCanvas(); + }, - length = imul(size, size) | 0; + locate : function() { + var patchesFound, + topLabels, + boxes; - while ((length | 0) > 0) { - length = (length - 1) | 0; - images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0; + if (_config.halfSample) { + CVUtils.halfSample(_inputImageWrapper, _currentImageWrapper); } - } - function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) { - aImagePtr = aImagePtr | 0; - bImagePtr = bImagePtr | 0; - outImagePtr = outImagePtr | 0; + binarizeImage(); + patchesFound = findPatches(); + // return unless 5% or more patches are found + if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) { + return null; + } - var length = 0; + // rasterrize area by comparing angular similarity; + var maxLabel = rasterizeAngularSimilarity(patchesFound); + if (maxLabel < 1) { + return null; + } - length = imul(size, size) | 0; + // search for area with the most patches (biggest connected area) + topLabels = findBiggestConnectedAreas(maxLabel); + if (topLabels.length === 0) { + return null; + } - while ((length | 0) > 0) { - length = (length - 1) | 0; - images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0; + boxes = findBoxes(topLabels, maxLabel); + return boxes; + }, + + checkImageConstraints: function(inputStream, config) { + var patchSize, + width = inputStream.getWidth(), + height = inputStream.getHeight(), + halfSample = config.halfSample ? 0.5 : 1, + size, + area; + + // calculate width and height based on area + if (inputStream.getConfig().area) { + area = CVUtils.computeImageArea(width, height, inputStream.getConfig().area); + inputStream.setTopRight({x: area.sx, y: area.sy}); + inputStream.setCanvasSize({x: width, y: height}); + width = area.sw; + height = area.sh; } - } - function countNonZero(imagePtr) { - imagePtr = imagePtr | 0; + size = { + x: Math.floor(width * halfSample), + y: Math.floor(height * halfSample) + }; - var sum = 0, - length = 0; + patchSize = CVUtils.calculatePatchSize(config.patchSize, size); + console.log("Patch-Size: " + JSON.stringify(patchSize)); - length = imul(size, size) | 0; + inputStream.setWidth(Math.floor(Math.floor(size.x/patchSize.x)*(1/halfSample)*patchSize.x)); + inputStream.setHeight(Math.floor(Math.floor(size.y/patchSize.y)*(1/halfSample)*patchSize.y)); - while ((length | 0) > 0) { - length = (length - 1) | 0; - sum = ((sum | 0) + (images[(imagePtr + length) | 0] | 0)) | 0; + if ((inputStream.getWidth() % patchSize.x) === 0 && (inputStream.getHeight() % patchSize.y) === 0) { + return true; } - return (sum | 0); + throw new Error("Image dimensions do not comply with the current settings: Width (" + + width + " )and height (" + height + + ") must a multiple of " + patchSize.x); + } + }; +}); + + +/* jshint undef: true, unused: true, browser:true, devel: true */ +/* global define */ + +define('bresenham',["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) { + "use strict"; + var Bresenham = {}; + + var Slope = { + DIR : { + UP : 1, + DOWN : -1 + } + }; + /** + * Scans a line of the given image from point p1 to p2 and returns a result object containing + * gray-scale values (0-255) of the underlying pixels in addition to the min + * and max values. + * @param {Object} imageWrapper + * @param {Object} p1 The start point {x,y} + * @param {Object} p2 The end point {x,y} + * @returns {line, min, max} + */ + Bresenham.getBarcodeLine = function(imageWrapper, p1, p2) { + var x0 = p1.x | 0, + y0 = p1.y | 0, + x1 = p2.x | 0, + y1 = p2.y | 0, + steep = Math.abs(y1 - y0) > Math.abs(x1 - x0), + deltax, + deltay, + error, + ystep, + y, + tmp, + x, + line = [], + imageData = imageWrapper.data, + width = imageWrapper.size.x, + sum = 0, + val, + min = 255, + max = 0; + + function read(a, b) { + val = imageData[b * width + a]; + sum += val; + min = val < min ? val : min; + max = val > max ? val : max; + line.push(val); } - function init(imagePtr, value) { - imagePtr = imagePtr | 0; - value = value | 0; - - var length = 0; - - length = imul(size, size) | 0; + if (steep) { + tmp = x0; + x0 = y0; + y0 = tmp; - while ((length | 0) > 0) { - length = (length - 1) | 0; - images[(imagePtr + length) | 0] = value; - } + tmp = x1; + x1 = y1; + y1 = tmp; } + if (x0 > x1) { + tmp = x0; + x0 = x1; + x1 = tmp; - function dilate(inImagePtr, outImagePtr) { - inImagePtr = inImagePtr | 0; - outImagePtr = outImagePtr | 0; - - var v = 0, - u = 0, - sum = 0, - yStart1 = 0, - yStart2 = 0, - xStart1 = 0, - xStart2 = 0, - offset = 0; - - for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) { - offset = (offset + size) | 0; - for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) { - yStart1 = (offset - size) | 0; - yStart2 = (offset + size) | 0; - xStart1 = (u - 1) | 0; - xStart2 = (u + 1) | 0; - sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; - if ((sum | 0) > (0 | 0)) { - images[(outImagePtr + offset + u) | 0] = 1; - } else { - images[(outImagePtr + offset + u) | 0] = 0; - } - } + tmp = y0; + y0 = y1; + y1 = tmp; + } + deltax = x1 - x0; + deltay = Math.abs(y1 - y0); + error = (deltax / 2) | 0; + y = y0; + ystep = y0 < y1 ? 1 : -1; + for ( x = x0; x < x1; x++) { + if(steep){ + read(y, x); + } else { + read(x, y); + } + error = error - deltay; + if (error < 0) { + y = y + ystep; + error = error + deltax; } - return; } - function memcpy(srcImagePtr, dstImagePtr) { - srcImagePtr = srcImagePtr | 0; - dstImagePtr = dstImagePtr | 0; - - var length = 0; + return { + line : line, + min : min, + max : max + }; + }; - length = imul(size, size) | 0; + Bresenham.toOtsuBinaryLine = function(result) { + var line = result.line, + image = new ImageWrapper({x: line.length - 1, y: 1}, line), + threshold = CVUtils.determineOtsuThreshold(image, 5); - while ((length | 0) > 0) { - length = (length - 1) | 0; - images[(dstImagePtr + length) | 0] = (images[(srcImagePtr + length) | 0] | 0); - } - } + line = CVUtils.sharpenLine(line); + CVUtils.thresholdImage(image, threshold); - function zeroBorder(imagePtr) { - imagePtr = imagePtr | 0; + return { + line: line, + threshold: threshold + }; + }; + + /** + * Converts the result from getBarcodeLine into a binary representation + * also considering the frequency and slope of the signal for more robust results + * @param {Object} result {line, min, max} + */ + Bresenham.toBinaryLine = function(result) { - var x = 0, - y = 0; + var min = result.min, + max = result.max, + line = result.line, + slope, + slope2, + center = min + (max - min) / 2, + extrema = [], + currentDir, + dir, + threshold = (max - min) / 12, + rThreshold = -threshold, + i, + j; - for ( x = 0; (x | 0) < ((size - 1) | 0); x = (x + 1) | 0) { - images[(imagePtr + x) | 0] = 0; - images[(imagePtr + y) | 0] = 0; - y = ((y + size) - 1) | 0; - images[(imagePtr + y) | 0] = 0; - y = (y + 1) | 0; + // 1. find extrema + currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN; + extrema.push({ + pos : 0, + val : line[0] + }); + for ( i = 0; i < line.length - 2; i++) { + slope = (line[i + 1] - line[i]); + slope2 = (line[i + 2] - line[i + 1]); + if ((slope + slope2) < rThreshold && line[i + 1] < (center*1.5)) { + dir = Slope.DIR.DOWN; + } else if ((slope + slope2) > threshold && line[i + 1] > (center*0.5)) { + dir = Slope.DIR.UP; + } else { + dir = currentDir; } - for ( x = 0; (x | 0) < (size | 0); x = (x + 1) | 0) { - images[(imagePtr + y) | 0] = 0; - y = (y + 1) | 0; + + if (currentDir !== dir) { + extrema.push({ + pos : i, + val : line[i] + }); + currentDir = dir; } } + extrema.push({ + pos : line.length, + val : line[line.length - 1] + }); - function skeletonize() { - var subImagePtr = 0, - erodedImagePtr = 0, - tempImagePtr = 0, - skelImagePtr = 0, - sum = 0, - done = 0; - - erodedImagePtr = imul(size, size) | 0; - tempImagePtr = (erodedImagePtr + erodedImagePtr) | 0; - skelImagePtr = (tempImagePtr + erodedImagePtr) | 0; + for ( j = extrema[0].pos; j < extrema[1].pos; j++) { + line[j] = line[j] > center ? 0 : 1; + } - // init skel-image - init(skelImagePtr, 0); - zeroBorder(subImagePtr); + // iterate over extrema and convert to binary based on avg between minmax + for ( i = 1; i < extrema.length - 1; i++) { + if (extrema[i + 1].val > extrema[i].val) { + threshold = (extrema[i].val + ((extrema[i + 1].val - extrema[i].val) / 3) * 2) | 0; + } else { + threshold = (extrema[i + 1].val + ((extrema[i].val - extrema[i + 1].val) / 3)) | 0; + } - do { - erode(subImagePtr, erodedImagePtr); - dilate(erodedImagePtr, tempImagePtr); - subtract(subImagePtr, tempImagePtr, tempImagePtr); - bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr); - memcpy(erodedImagePtr, subImagePtr); - sum = countNonZero(subImagePtr) | 0; - done = ((sum | 0) == 0 | 0); - } while(!done); + for ( j = extrema[i].pos; j < extrema[i + 1].pos; j++) { + line[j] = line[j] > threshold ? 0 : 1; + } } return { - skeletonize : skeletonize + line : line, + threshold : threshold }; - } - /* @preserve ASM END */ - - return Skeletonizer; -}); - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('image_debug',[],function() { - "use strict"; + }; + + /** + * Used for development only + */ + Bresenham.debug = { + printFrequency: function(line, canvas) { + var i, + ctx = canvas.getContext("2d"); + canvas.width = line.length; + canvas.height = 256; - return { - drawRect: function(pos, size, ctx, style){ - ctx.strokeStyle = style.color; - ctx.fillStyle = style.color; - ctx.lineWidth = 1; - ctx.beginPath(); - ctx.strokeRect(pos.x, pos.y, size.x, size.y); - }, - drawPath: function(path, def, ctx, style) { - ctx.strokeStyle = style.color; - ctx.fillStyle = style.color; - ctx.lineWidth = style.lineWidth; ctx.beginPath(); - ctx.moveTo(path[0][def.x], path[0][def.y]); - for (var j = 1; j < path.length; j++) { - ctx.lineTo(path[j][def.x], path[j][def.y]); - } - ctx.closePath(); - ctx.stroke(); - }, - drawImage: function(imageData, size, ctx) { - var canvasData = ctx.getImageData(0, 0, size.x, size.y), - data = canvasData.data, - imageDataPos = imageData.length, - canvasDataPos = data.length, - value; - - if (canvasDataPos/imageDataPos !== 4) { - return false; + ctx.strokeStyle = "blue"; + for ( i = 0; i < line.length; i++) { + ctx.moveTo(i, 255); + ctx.lineTo(i, 255 - line[i]); } - while(imageDataPos--){ - value = imageData[imageDataPos]; - data[--canvasDataPos] = 255; - data[--canvasDataPos] = value; - data[--canvasDataPos] = value; - data[--canvasDataPos] = value; + ctx.stroke(); + ctx.closePath(); + }, + + printPattern: function(line, canvas) { + var ctx = canvas.getContext("2d"), i; + + canvas.width = line.length; + ctx.fillColor = "black"; + for ( i = 0; i < line.length; i++) { + if (line[i] === 1) { + ctx.fillRect(i, 0, 1, 100); + } } - ctx.putImageData(canvasData, 0, 0); - return true; } }; - -}); + return (Bresenham); +}); /* jshint undef: true, unused: true, browser:true, devel: true */ /* global define */ +<<<<<<< HEAD define("barcode_locator", ["image_wrapper", "cv_utils", "rasterizer", "tracer", "skeletonizer", "array_helper", "image_debug", "gl-matrix"], function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, ImageDebug, glMatrix) { @@ -7687,346 +9324,679 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I vec2 = glMatrix.vec2, mat2 = glMatrix.mat2, self = this; +======= +>>>>>>> bc7283003570f6aa9b9930de2e1208cd18656951 - function initBuffers() { - var skeletonImageData; +define( + 'barcode_reader',[],function() { + "use strict"; - if (_config.halfSample) { - _currentImageWrapper = new ImageWrapper({ - x : _inputImageWrapper.size.x / 2 | 0, - y : _inputImageWrapper.size.y / 2 | 0 - }); - } else { - _currentImageWrapper = _inputImageWrapper; + function BarcodeReader(config) { + this._row = []; + this.config = config || {}; + return this; } + + BarcodeReader.prototype._nextUnset = function(line, start) { + var i; + + if (start === undefined) { + start = 0; + } + for (i = start; i < line.length; i++) { + if (!line[i]) { + return i; + } + } + return line.length; + }; + + BarcodeReader.prototype._matchPattern = function(counter, code) { + var i, + error = 0, + singleError = 0, + modulo = this.MODULO, + maxSingleError = this.SINGLE_CODE_ERROR || 1; + + for (i = 0; i < counter.length; i++) { + singleError = Math.abs(code[i] - counter[i]); + if (singleError > maxSingleError) { + return Number.MAX_VALUE; + } + error += singleError; + } + return error/modulo; + }; - _patchSize = CVUtils.calculatePatchSize(_config.patchSize, _currentImageWrapper.size); - - _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0; - _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0; + BarcodeReader.prototype._nextSet = function(line, offset) { + var i; - _binaryImageWrapper = new ImageWrapper(_currentImageWrapper.size, undefined, Uint8Array, false); + offset = offset || 0; + for (i = offset; i < line.length; i++) { + if (line[i]) { + return i; + } + } + return line.length; + }; - _labelImageWrapper = new ImageWrapper(_patchSize, undefined, Array, true); + BarcodeReader.prototype._normalize = function(counter, modulo) { + var i, + self = this, + sum = 0, + ratio, + numOnes = 0, + normalized = [], + norm = 0; + + if (!modulo) { + modulo = self.MODULO; + } + for (i = 0; i < counter.length; i++) { + if (counter[i] === 1) { + numOnes++; + } else { + sum += counter[i]; + } + } + ratio = sum / (modulo - numOnes); + if (ratio > 1.0) { + for (i = 0; i < counter.length; i++) { + norm = counter[i] === 1 ? counter[i] : counter[i] / ratio; + normalized.push(norm); + } + } else { + ratio = (sum + numOnes)/modulo; + for (i = 0; i < counter.length; i++) { + norm = counter[i] / ratio; + normalized.push(norm); + } + } + return normalized; + }; - skeletonImageData = new ArrayBuffer(64*1024); - _subImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y)); - _skelImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true); - _skeletonizer = skeletonizer(self, { - size : _patchSize.x - }, skeletonImageData); + BarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) { + var counter = [], + i, + self = this, + offset = self._nextSet(self._row), + isWhite = !self._row[offset], + counterPos = 0, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : 0 + }, + error; - _imageToPatchGrid = new ImageWrapper({ - x : (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0, - y : (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0 - }, undefined, Array, true); - _patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true); - _patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true); - } + if (cmpCounter) { + for ( i = 0; i < cmpCounter.length; i++) { + counter.push(0); + } + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + error = self._matchPattern(counter, cmpCounter); - function initCanvas() { - if (_config.useWorker || typeof document === 'undefined') { - return; + if (error < epsilon) { + bestMatch.start = i - offset; + bestMatch.end = i; + bestMatch.counter = counter; + return bestMatch; + } else { + return null; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + } else { + counter.push(0); + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + counterPos++; + counter.push(0); + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + } +<<<<<<< HEAD } - _canvasContainer.dom.binary = document.createElement("canvas"); - _canvasContainer.dom.binary.className = "binaryBuffer"; - if (_config.showCanvas === true) { - document.querySelector("#debug").appendChild(_canvasContainer.dom.binary); + + overAvg /= patches.length; + overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90; + if (overAvg < 0) { + overAvg += 180; } - _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext("2d"); - _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x; - _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y; - } - /** - * Creates a bounding box which encloses all the given patches - * @returns {Array} The minimal bounding box - */ - function boxFromPatches(patches) { - var overAvg, i, j, patch, transMat, minx = _binaryImageWrapper.size.x, miny = _binaryImageWrapper.size.y, maxx = -_binaryImageWrapper.size.x, maxy = -_binaryImageWrapper.size.y, box, scale; + overAvg = (180 - overAvg) * Math.PI / 180; + transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]); + + // iterate over patches and rotate by angle + for ( i = 0; i < patches.length; i++) { + patch = patches[i]; + for ( j = 0; j < 4; j++) { + vec2.transformMat2(patch.box[j], patch.box[j], transMat); +======= + + // if cmpCounter was not given + bestMatch.start = offset; + bestMatch.end = self._row.length - 1; + bestMatch.counter = counter; + return bestMatch; + }; + + BarcodeReader.prototype.decodePattern = function(pattern) { + var self = this, + result; + + self._row = pattern; + result = self._decode(); + if (result === null) { + self._row.reverse(); + result = self._decode(); + if (result) { + result.direction = BarcodeReader.DIRECTION.REVERSE; + result.start = self._row.length - result.start; + result.end = self._row.length - result.end; + } + } else { + result.direction = BarcodeReader.DIRECTION.FORWARD; +>>>>>>> bc7283003570f6aa9b9930de2e1208cd18656951 + } + if (result) { + result.format = self.FORMAT; + } + return result; + }; + + BarcodeReader.prototype._matchRange = function(start, end, value) { + var i; + + start = start < 0 ? 0 : start; + for (i = start; i < end; i++) { + if (this._row[i] !== value) { + return false; + } + } + return true; + }; + + BarcodeReader.prototype._fillCounters = function(offset, end, isWhite) { + var self = this, + counterPos = 0, + i, + counters = []; + + isWhite = (typeof isWhite !== 'undefined') ? isWhite : true; + offset = (typeof offset !== 'undefined') ? offset : self._nextUnset(self._row); + end = end || self._row.length; - // draw all patches which are to be taken into consideration - overAvg = 0; - for ( i = 0; i < patches.length; i++) { - patch = patches[i]; - overAvg += patch.rad; - if (_config.showPatches) { - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "red"}); - } +<<<<<<< HEAD + scale = _config.halfSample ? 2 : 1; + // reverse rotation; + transMat = mat2.invert(transMat, transMat); + for ( j = 0; j < 4; j++) { + vec2.transformMat2(box[j], box[j], transMat); } +======= + counters[counterPos] = 0; + for (i = offset; i < end; i++) { + if (self._row[i] ^ isWhite) { + counters[counterPos]++; + } else { + counterPos++; + counters[counterPos] = 1; + isWhite = !isWhite; + } + } + return counters; + }; +>>>>>>> bc7283003570f6aa9b9930de2e1208cd18656951 - overAvg /= patches.length; - overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90; - if (overAvg < 0) { - overAvg += 180; + Object.defineProperty(BarcodeReader.prototype, "FORMAT", { + value: 'unknown', + writeable: false + }); + +<<<<<<< HEAD + for ( j = 0; j < 4; j++) { + vec2.scale(box[j], box[j], scale); } +======= + BarcodeReader.DIRECTION = { + FORWARD : 1, + REVERSE : -1 + }; + + BarcodeReader.Exception = { + StartNotFoundException : "Start-Info was not found!", + CodeNotFoundException : "Code could not be found!", + PatternNotFoundException : "Pattern could not be found!" + }; +>>>>>>> bc7283003570f6aa9b9930de2e1208cd18656951 - overAvg = (180 - overAvg) * Math.PI / 180; - transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]); + BarcodeReader.CONFIG_KEYS = {}; + + return (BarcodeReader); + } +); - // iterate over patches and rotate by angle - for ( i = 0; i < patches.length; i++) { - patch = patches[i]; - for ( j = 0; j < 4; j++) { - vec2.transformMat2(patch.box[j], patch.box[j], transMat); - } +/* jshint undef: true, unused: true, browser:true, devel: true */ +/* global define */ - if (_config.boxFromPatches.showTransformed) { - ImageDebug.drawPath(patch.box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#99ff00', lineWidth: 2}); - } +define( + 'code_128_reader',[ + "./barcode_reader" + ], + function(BarcodeReader) { + "use strict"; + + function Code128Reader() { + BarcodeReader.call(this); } + + var properties = { + CODE_SHIFT : {value: 98}, + CODE_C : {value: 99}, + CODE_B : {value: 100}, + CODE_A : {value: 101}, + START_CODE_A : {value: 103}, + START_CODE_B : {value: 104}, + START_CODE_C : {value: 105}, + STOP_CODE : {value: 106}, + MODULO : {value: 11}, + CODE_PATTERN : {value: [ + [2, 1, 2, 2, 2, 2], + [2, 2, 2, 1, 2, 2], + [2, 2, 2, 2, 2, 1], + [1, 2, 1, 2, 2, 3], + [1, 2, 1, 3, 2, 2], + [1, 3, 1, 2, 2, 2], + [1, 2, 2, 2, 1, 3], + [1, 2, 2, 3, 1, 2], + [1, 3, 2, 2, 1, 2], + [2, 2, 1, 2, 1, 3], + [2, 2, 1, 3, 1, 2], + [2, 3, 1, 2, 1, 2], + [1, 1, 2, 2, 3, 2], + [1, 2, 2, 1, 3, 2], + [1, 2, 2, 2, 3, 1], + [1, 1, 3, 2, 2, 2], + [1, 2, 3, 1, 2, 2], + [1, 2, 3, 2, 2, 1], + [2, 2, 3, 2, 1, 1], + [2, 2, 1, 1, 3, 2], + [2, 2, 1, 2, 3, 1], + [2, 1, 3, 2, 1, 2], + [2, 2, 3, 1, 1, 2], + [3, 1, 2, 1, 3, 1], + [3, 1, 1, 2, 2, 2], + [3, 2, 1, 1, 2, 2], + [3, 2, 1, 2, 2, 1], + [3, 1, 2, 2, 1, 2], + [3, 2, 2, 1, 1, 2], + [3, 2, 2, 2, 1, 1], + [2, 1, 2, 1, 2, 3], + [2, 1, 2, 3, 2, 1], + [2, 3, 2, 1, 2, 1], + [1, 1, 1, 3, 2, 3], + [1, 3, 1, 1, 2, 3], + [1, 3, 1, 3, 2, 1], + [1, 1, 2, 3, 1, 3], + [1, 3, 2, 1, 1, 3], + [1, 3, 2, 3, 1, 1], + [2, 1, 1, 3, 1, 3], + [2, 3, 1, 1, 1, 3], + [2, 3, 1, 3, 1, 1], + [1, 1, 2, 1, 3, 3], + [1, 1, 2, 3, 3, 1], + [1, 3, 2, 1, 3, 1], + [1, 1, 3, 1, 2, 3], + [1, 1, 3, 3, 2, 1], + [1, 3, 3, 1, 2, 1], + [3, 1, 3, 1, 2, 1], + [2, 1, 1, 3, 3, 1], + [2, 3, 1, 1, 3, 1], + [2, 1, 3, 1, 1, 3], + [2, 1, 3, 3, 1, 1], + [2, 1, 3, 1, 3, 1], + [3, 1, 1, 1, 2, 3], + [3, 1, 1, 3, 2, 1], + [3, 3, 1, 1, 2, 1], + [3, 1, 2, 1, 1, 3], + [3, 1, 2, 3, 1, 1], + [3, 3, 2, 1, 1, 1], + [3, 1, 4, 1, 1, 1], + [2, 2, 1, 4, 1, 1], + [4, 3, 1, 1, 1, 1], + [1, 1, 1, 2, 2, 4], + [1, 1, 1, 4, 2, 2], + [1, 2, 1, 1, 2, 4], + [1, 2, 1, 4, 2, 1], + [1, 4, 1, 1, 2, 2], + [1, 4, 1, 2, 2, 1], + [1, 1, 2, 2, 1, 4], + [1, 1, 2, 4, 1, 2], + [1, 2, 2, 1, 1, 4], + [1, 2, 2, 4, 1, 1], + [1, 4, 2, 1, 1, 2], + [1, 4, 2, 2, 1, 1], + [2, 4, 1, 2, 1, 1], + [2, 2, 1, 1, 1, 4], + [4, 1, 3, 1, 1, 1], + [2, 4, 1, 1, 1, 2], + [1, 3, 4, 1, 1, 1], + [1, 1, 1, 2, 4, 2], + [1, 2, 1, 1, 4, 2], + [1, 2, 1, 2, 4, 1], + [1, 1, 4, 2, 1, 2], + [1, 2, 4, 1, 1, 2], + [1, 2, 4, 2, 1, 1], + [4, 1, 1, 2, 1, 2], + [4, 2, 1, 1, 1, 2], + [4, 2, 1, 2, 1, 1], + [2, 1, 2, 1, 4, 1], + [2, 1, 4, 1, 2, 1], + [4, 1, 2, 1, 2, 1], + [1, 1, 1, 1, 4, 3], + [1, 1, 1, 3, 4, 1], + [1, 3, 1, 1, 4, 1], + [1, 1, 4, 1, 1, 3], + [1, 1, 4, 3, 1, 1], + [4, 1, 1, 1, 1, 3], + [4, 1, 1, 3, 1, 1], + [1, 1, 3, 1, 4, 1], + [1, 1, 4, 1, 3, 1], + [3, 1, 1, 1, 4, 1], + [4, 1, 1, 1, 3, 1], + [2, 1, 1, 4, 1, 2], + [2, 1, 1, 2, 1, 4], + [2, 1, 1, 2, 3, 2], + [2, 3, 3, 1, 1, 1, 2] + ]}, + SINGLE_CODE_ERROR: {value: 1}, + AVG_CODE_ERROR: {value: 0.5}, + FORMAT: {value: "code_128", writeable: false} + }; + + Code128Reader.prototype = Object.create(BarcodeReader.prototype, properties); + Code128Reader.prototype.constructor = Code128Reader; + + Code128Reader.prototype._decodeCode = function(start) { + var counter = [0, 0, 0, 0, 0, 0], + i, + self = this, + offset = start, + isWhite = !self._row[offset], + counterPos = 0, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : start, + end : start + }, + code, + error, + normalized; - // find bounding box - for ( i = 0; i < patches.length; i++) { - patch = patches[i]; - for ( j = 0; j < 4; j++) { - if (patch.box[j][0] < minx) { - minx = patch.box[j][0]; - } - if (patch.box[j][0] > maxx) { - maxx = patch.box[j][0]; - } - if (patch.box[j][1] < miny) { - miny = patch.box[j][1]; - } - if (patch.box[j][1] > maxy) { - maxy = patch.box[j][1]; + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + normalized = self._normalize(counter); + if (normalized) { + for (code = 0; code < self.CODE_PATTERN.length; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; + } + } + bestMatch.end = i; + return bestMatch; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; } } - } - - box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]]; - - if (_config.boxFromPatches.showTransformedBox) { - ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2}); - } - - scale = _config.halfSample ? 2 : 1; - // reverse rotation; - transMat = mat2.invert(transMat, transMat); - for ( j = 0; j < 4; j++) { - vec2.transformMat2(box[j], box[j], transMat); - } - - if (_config.boxFromPatches.showBB) { - ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2}); - } - - for ( j = 0; j < 4; j++) { - vec2.scale(box[j], box[j], scale); - } - - return box; - } - - /** - * Creates a binary image of the current image - */ - function binarizeImage() { - CVUtils.otsuThreshold(_currentImageWrapper, _binaryImageWrapper); - _binaryImageWrapper.zeroBorder(); - if (_config.showCanvas) { - _binaryImageWrapper.show(_canvasContainer.dom.binary, 255); - } - } - - /** - * Iterate over the entire image - * extract patches - */ - function findPatches() { - var i, - j, - x, - y, - moments, - patchesFound = [], - rasterizer, - rasterResult, - patch; - for ( i = 0; i < _numPatches.x; i++) { - for ( j = 0; j < _numPatches.y; j++) { - - x = _subImageWrapper.size.x * i; - y = _subImageWrapper.size.y * j; - - // seperate parts - skeletonize(x, y); + return null; + }; - // Rasterize, find individual bars - _skelImageWrapper.zeroBorder(); - ArrayHelper.init(_labelImageWrapper.data, 0); - rasterizer = Rasterizer.create(_skelImageWrapper, _labelImageWrapper); - rasterResult = rasterizer.rasterize(0); + Code128Reader.prototype._findStart = function() { + var counter = [0, 0, 0, 0, 0, 0], + i, + self = this, + offset = self._nextSet(self._row), + isWhite = false, + counterPos = 0, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : 0, + end : 0 + }, + code, + error, + j, + sum, + normalized; + + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + sum = 0; + for ( j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; + } + } + if (bestMatch.error < self.AVG_CODE_ERROR) { + bestMatch.start = i - sum; + bestMatch.end = i; + return bestMatch; + } + } - if (_config.showLabels) { - _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), {x : x, y : y}); + for ( j = 0; j < 4; j++) { + counter[j] = counter[j + 2]; + } + counter[4] = 0; + counter[5] = 0; + counterPos--; + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; } + } + return null; + }; - // calculate moments from the skeletonized patch - moments = _labelImageWrapper.moments(rasterResult.count); + Code128Reader.prototype._decode = function() { + var self = this, + startInfo = self._findStart(), + code = null, + done = false, + result = [], + multiplier = 0, + checksum = 0, + codeset, + rawResult = [], + decodedCodes = [], + shiftNext = false, + unshift, + lastCharacterWasPrintable; - // extract eligible patches - patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y)); + if (startInfo === null) { + return null; } - } - - if (_config.showFoundPatches) { - for ( i = 0; i < patchesFound.length; i++) { - patch = patchesFound[i]; - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "#99ff00", lineWidth: 2}); + code = { + code : startInfo.code, + start : startInfo.start, + end : startInfo.end + }; + decodedCodes.push(code); + checksum = code.code; + switch(code.code) { + case self.START_CODE_A: + codeset = self.CODE_A; + break; + case self.START_CODE_B: + codeset = self.CODE_B; + break; + case self.START_CODE_C: + codeset = self.CODE_C; + break; + default: + return null; } - } - - return patchesFound; - } - - /** - * Finds those connected areas which contain at least 6 patches - * and returns them ordered DESC by the number of contained patches - * @param {Number} maxLabel - */ - function findBiggestConnectedAreas(maxLabel){ - var i, - sum, - labelHist = [], - topLabels = []; - - for ( i = 0; i < maxLabel; i++) { - labelHist.push(0); - } - sum = _patchLabelGrid.data.length; - while (sum--) { - if (_patchLabelGrid.data[sum] > 0) { - labelHist[_patchLabelGrid.data[sum] - 1]++; + + while (!done) { + unshift = shiftNext; + shiftNext = false; + code = self._decodeCode(code.end); + if (code !== null) { + if (code.code !== self.STOP_CODE) { + rawResult.push(code.code); + multiplier++; + checksum += multiplier * code.code; + } + decodedCodes.push(code); + + switch(codeset) { + case self.CODE_A: + if (code.code < 64) { + result.push(String.fromCharCode(32 + code.code)); + } else if (code.code < 96) { + result.push(String.fromCharCode(code.code - 64)); + } else { + switch (code.code) { + case self.CODE_SHIFT: + shiftNext = true; + codeset = self.CODE_B; + break; + case self.CODE_B: + codeset = self.CODE_B; + break; + case self.CODE_C: + codeset = self.CODE_C; + break; + case self.STOP_CODE: + done = true; + break; + } + } + break; + case self.CODE_B: + if (code.code < 96) { + result.push(String.fromCharCode(32 + code.code)); + } else { + if (code.code != self.STOP_CODE) { + lastCharacterWasPrintable = false; + } + switch (code.code) { + case self.CODE_SHIFT: + shiftNext = true; + codeset = self.CODE_A; + break; + case self.CODE_A: + codeset = self.CODE_A; + break; + case self.CODE_C: + codeset = self.CODE_C; + break; + case self.STOP_CODE: + done = true; + break; + } + } + break; + case self.CODE_C: + if (code.code < 100) { + result.push(code.code < 10 ? "0" + code.code : code.code); + } + switch (code.code) { + case self.CODE_A: + codeset = self.CODE_A; + break; + case self.CODE_B: + codeset = self.CODE_B; + break; + case self.STOP_CODE: + done = true; + break; + } + break; + } + } else { + done = true; + } + if (unshift) { + codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A; + } } - } - - labelHist = labelHist.map(function(val, idx) { - return { - val : val, - label : idx + 1 - }; - }); - labelHist.sort(function(a, b) { - return b.val - a.val; - }); + if (code === null) { + return null; + } - // extract top areas with at least 6 patches present - topLabels = labelHist.filter(function(el) { - return el.val >= 5; - }); - - return topLabels; - } - - /** - * - */ - function findBoxes(topLabels, maxLabel) { - var i, - j, - sum, - patches = [], - patch, - box, - boxes = [], - hsv = [0, 1, 1], - rgb = [0, 0, 0]; - - for ( i = 0; i < topLabels.length; i++) { - sum = _patchLabelGrid.data.length; - patches.length = 0; - while (sum--) { - if (_patchLabelGrid.data[sum] === topLabels[i].label) { - patch = _imageToPatchGrid.data[sum]; - patches.push(patch); - } + // find end bar + code.end = self._nextUnset(self._row, code.end); + if(!self._verifyTrailingWhitespace(code)){ + return null; } - box = boxFromPatches(patches); - if (box) { - boxes.push(box); - // draw patch-labels if requested - if (_config.showRemainingPatchLabels) { - for ( j = 0; j < patches.length; j++) { - patch = patches[j]; - hsv[0] = (topLabels[i].label / (maxLabel + 1)) * 360; - CVUtils.hsv2rgb(hsv, rgb); - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); - } - } + // checksum + // Does not work correctly yet!!! startcode - endcode? + checksum -= multiplier * rawResult[rawResult.length - 1]; + if (checksum % 103 != rawResult[rawResult.length - 1]) { + return null; } - } - return boxes; - } - /** - * Find similar moments (via cluster) - * @param {Object} moments - */ - function similarMoments(moments) { - var clusters = CVUtils.cluster(moments, 0.90); - var topCluster = CVUtils.topGeneric(clusters, 1, function(e) { - return e.getPoints().length; - }); - var points = [], result = []; - if (topCluster.length === 1) { - points = topCluster[0].item.getPoints(); - for (var i = 0; i < points.length; i++) { - result.push(points[i].point); + if (!result.length) { + return null; } - } - return result; - } - function skeletonize(x, y) { - _binaryImageWrapper.subImageAsCopy(_subImageWrapper, CVUtils.imageRef(x, y)); - _skeletonizer.skeletonize(); - - // Show skeleton if requested - if (_config.showSkeleton) { - _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, CVUtils.imageRef(x, y)); - } - } + // remove last code from result (checksum) + result.splice(result.length - 1, 1); - /** - * Extracts and describes those patches which seem to contain a barcode pattern - * @param {Array} moments - * @param {Object} patchPos, - * @param {Number} x - * @param {Number} y - * @returns {Array} list of patches - */ - function describePatch(moments, patchPos, x, y) { - var k, - avg, - sum = 0, - eligibleMoments = [], - matchingMoments, - patch, - patchesFound = [], - minComponentWeight = Math.ceil(_patchSize.x/3); - if (moments.length >= 2) { - // only collect moments which's area covers at least minComponentWeight pixels. - for ( k = 0; k < moments.length; k++) { - if (moments[k].m00 > minComponentWeight) { - eligibleMoments.push(moments[k]); - } - } - // if at least 2 moments are found which have at least minComponentWeights covered - if (eligibleMoments.length >= 2) { - sum = eligibleMoments.length; - matchingMoments = similarMoments(eligibleMoments); - avg = 0; - // determine the similarity of the moments - for ( k = 0; k < matchingMoments.length; k++) { - avg += matchingMoments[k].rad; - } + return { + code : result.join(""), + start : startInfo.start, + end : code.end, + codeset : codeset, + startInfo : startInfo, + decodedCodes : decodedCodes, + endInfo : code + }; + }; +<<<<<<< HEAD // Only two of the moments are allowed not to fit into the equation // add the patch to the set if (matchingMoments.length > 1 && matchingMoments.length >= (eligibleMoments.length / 4) * 3 && matchingMoments.length > moments.length / 4) { @@ -8048,394 +10018,362 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I } return patchesFound; } +======= +>>>>>>> bc7283003570f6aa9b9930de2e1208cd18656951 - /** - * finds patches which are connected and share the same orientation - * @param {Object} patchesFound - */ - function rasterizeAngularSimilarity(patchesFound) { - var label = 0, - threshold = 0.95, - currIdx = 0, - j, - patch, - hsv = [0, 1, 1], - rgb = [0, 0, 0]; + BarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) { + var self = this, + trailingWhitespaceEnd; - function notYetProcessed() { - var i; - for ( i = 0; i < _patchLabelGrid.data.length; i++) { - if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) { - return i; + trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2); + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; } } - return _patchLabelGrid.length; - } - - function trace(currentIdx) { - var x, y, currentPatch, patch, idx, dir, current = { - x : currentIdx % _patchLabelGrid.size.x, - y : (currentIdx / _patchLabelGrid.size.x) | 0 - }, similarity; + return null; + }; + + return (Code128Reader); + } +); +/* jshint undef: true, unused: true, browser:true, devel: true */ +/* global define */ - if (currentIdx < _patchLabelGrid.data.length) { - currentPatch = _imageToPatchGrid.data[currentIdx]; - // assign label - _patchLabelGrid.data[currentIdx] = label; - for ( dir = 0; dir < Tracer.searchDirections.length; dir++) { - y = current.y + Tracer.searchDirections[dir][0]; - x = current.x + Tracer.searchDirections[dir][1]; - idx = y * _patchLabelGrid.size.x + x; +define( + 'ean_reader',[ + "./barcode_reader" + ], + function(BarcodeReader) { + "use strict"; + + function EANReader(opts) { + BarcodeReader.call(this, opts); + } + + var properties = { + CODE_L_START : {value: 0}, + MODULO : {value: 7}, + CODE_G_START : {value: 10}, + START_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, + STOP_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, + MIDDLE_PATTERN : {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]}, + CODE_PATTERN : {value: [ + [3, 2, 1, 1], + [2, 2, 2, 1], + [2, 1, 2, 2], + [1, 4, 1, 1], + [1, 1, 3, 2], + [1, 2, 3, 1], + [1, 1, 1, 4], + [1, 3, 1, 2], + [1, 2, 1, 3], + [3, 1, 1, 2], + [1, 1, 2, 3], + [1, 2, 2, 2], + [2, 2, 1, 2], + [1, 1, 4, 1], + [2, 3, 1, 1], + [1, 3, 2, 1], + [4, 1, 1, 1], + [2, 1, 3, 1], + [3, 1, 2, 1], + [2, 1, 1, 3] + ]}, + CODE_FREQUENCY : {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]}, + SINGLE_CODE_ERROR: {value: 0.67}, + AVG_CODE_ERROR: {value: 0.27}, + FORMAT: {value: "ean_13", writeable: false} + }; + + EANReader.prototype = Object.create(BarcodeReader.prototype, properties); + EANReader.prototype.constructor = EANReader; + + EANReader.prototype._decodeCode = function(start, coderange) { + var counter = [0, 0, 0, 0], + i, + self = this, + offset = start, + isWhite = !self._row[offset], + counterPos = 0, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : start, + end : start + }, + code, + error, + normalized; - // continue if patch empty - if (_patchGrid.data[idx] === 0) { - _patchLabelGrid.data[idx] = Number.MAX_VALUE; - continue; - } + if (!coderange) { + coderange = self.CODE_PATTERN.length; + } - patch = _imageToPatchGrid.data[idx]; - if (_patchLabelGrid.data[idx] === 0) { - similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec)); - if (similarity > threshold) { - trace(idx); + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + normalized = self._normalize(counter); + if (normalized) { + for (code = 0; code < coderange; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; + } + } + bestMatch.end = i; + if (bestMatch.error > self.AVG_CODE_ERROR) { + return null; + } + return bestMatch; } + } else { + counterPos++; } + counter[counterPos] = 1; + isWhite = !isWhite; } } - } - - // prepare for finding the right patches - ArrayHelper.init(_patchGrid.data, 0); - ArrayHelper.init(_patchLabelGrid.data, 0); - ArrayHelper.init(_imageToPatchGrid.data, null); - - for ( j = 0; j < patchesFound.length; j++) { - patch = patchesFound[j]; - _imageToPatchGrid.data[patch.index] = patch; - _patchGrid.data[patch.index] = 1; - } - - // rasterize the patches found to determine area - _patchGrid.zeroBorder(); - - while (( currIdx = notYetProcessed()) < _patchLabelGrid.data.length) { - label++; - trace(currIdx); - } - - // draw patch-labels if requested - if (_config.showPatchLabels) { - for ( j = 0; j < _patchLabelGrid.data.length; j++) { - if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) { - patch = _imageToPatchGrid.data[j]; - hsv[0] = (_patchLabelGrid.data[j] / (label + 1)) * 360; - CVUtils.hsv2rgb(hsv, rgb); - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); - } - } - } - - return label; - } - - return { - init : function(inputImageWrapper, config) { - _config = config; - _inputImageWrapper = inputImageWrapper; - - initBuffers(); - initCanvas(); - }, - - locate : function() { - var patchesFound, - topLabels, - boxes; + return null; + }; - if (_config.halfSample) { - CVUtils.halfSample(_inputImageWrapper, _currentImageWrapper); - } + EANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) { + var counter = [], + self = this, + i, + counterPos = 0, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : 0, + end : 0 + }, + error, + j, + sum, + normalized; - binarizeImage(); - patchesFound = findPatches(); - // return unless 5% or more patches are found - if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) { - return null; + if (!offset) { + offset = self._nextSet(self._row); } - // rasterrize area by comparing angular similarity; - var maxLabel = rasterizeAngularSimilarity(patchesFound); - if (maxLabel < 1) { - return null; + if (isWhite === undefined) { + isWhite = false; } - // search for area with the most patches (biggest connected area) - topLabels = findBiggestConnectedAreas(maxLabel); - if (topLabels.length === 0) { - return null; + if (tryHarder === undefined) { + tryHarder = true; } - boxes = findBoxes(topLabels, maxLabel); - return boxes; - }, - - checkImageConstraints: function(inputStream, config) { - var patchSize, - width = inputStream.getWidth(), - height = inputStream.getHeight(), - halfSample = config.halfSample ? 0.5 : 1, - size, - area; - - // calculate width and height based on area - if (inputStream.getConfig().area) { - area = CVUtils.computeImageArea(width, height, inputStream.getConfig().area); - inputStream.setTopRight({x: area.sx, y: area.sy}); - inputStream.setCanvasSize({x: width, y: height}); - width = area.sw; - height = area.sh; + if ( epsilon === undefined) { + epsilon = self.AVG_CODE_ERROR; } - size = { - x: Math.floor(width * halfSample), - y: Math.floor(height * halfSample) - }; - - patchSize = CVUtils.calculatePatchSize(config.patchSize, size); - console.log("Patch-Size: " + JSON.stringify(patchSize)); - - inputStream.setWidth(Math.floor(Math.floor(size.x/patchSize.x)*(1/halfSample)*patchSize.x)); - inputStream.setHeight(Math.floor(Math.floor(size.y/patchSize.y)*(1/halfSample)*patchSize.y)); - - if ((inputStream.getWidth() % patchSize.x) === 0 && (inputStream.getHeight() % patchSize.y) === 0) { - return true; + for ( i = 0; i < pattern.length; i++) { + counter[i] = 0; } - throw new Error("Image dimensions do not comply with the current settings: Width (" + - width + " )and height (" + height + - ") must a multiple of " + patchSize.x); - } - }; -}); - - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('bresenham',["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) { - "use strict"; - var Bresenham = {}; + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + sum = 0; + for ( j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + error = self._matchPattern(normalized, pattern); - var Slope = { - DIR : { - UP : 1, - DOWN : -1 - } - }; - /** - * Scans a line of the given image from point p1 to p2 and returns a result object containing - * gray-scale values (0-255) of the underlying pixels in addition to the min - * and max values. - * @param {Object} imageWrapper - * @param {Object} p1 The start point {x,y} - * @param {Object} p2 The end point {x,y} - * @returns {line, min, max} - */ - Bresenham.getBarcodeLine = function(imageWrapper, p1, p2) { - var x0 = p1.x | 0, - y0 = p1.y | 0, - x1 = p2.x | 0, - y1 = p2.y | 0, - steep = Math.abs(y1 - y0) > Math.abs(x1 - x0), - deltax, - deltay, - error, - ystep, - y, - tmp, - x, - line = [], - imageData = imageWrapper.data, - width = imageWrapper.size.x, - sum = 0, - val, - min = 255, - max = 0; + if (error < epsilon) { + bestMatch.error = error; + bestMatch.start = i - sum; + bestMatch.end = i; + return bestMatch; + } + } + if (tryHarder) { + for ( j = 0; j < counter.length - 2; j++) { + counter[j] = counter[j + 2]; + } + counter[counter.length - 2] = 0; + counter[counter.length - 1] = 0; + counterPos--; + } else { + return null; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; - function read(a, b) { - val = imageData[b * width + a]; - sum += val; - min = val < min ? val : min; - max = val > max ? val : max; - line.push(val); - } + EANReader.prototype._findStart = function() { + var self = this, + leadingWhitespaceStart, + offset = self._nextSet(self._row), + startInfo; - if (steep) { - tmp = x0; - x0 = y0; - y0 = tmp; + while(!startInfo) { + startInfo = self._findPattern(self.START_PATTERN, offset); + if (!startInfo) { + return null; + } + leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start); + if (leadingWhitespaceStart >= 0) { + if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { + return startInfo; + } + } + offset = startInfo.end; + startInfo = null; + } + }; - tmp = x1; - x1 = y1; - y1 = tmp; - } - if (x0 > x1) { - tmp = x0; - x0 = x1; - x1 = tmp; + EANReader.prototype._verifyTrailingWhitespace = function(endInfo) { + var self = this, + trailingWhitespaceEnd; - tmp = y0; - y0 = y1; - y1 = tmp; - } - deltax = x1 - x0; - deltay = Math.abs(y1 - y0); - error = (deltax / 2) | 0; - y = y0; - ystep = y0 < y1 ? 1 : -1; - for ( x = x0; x < x1; x++) { - if(steep){ - read(y, x); - } else { - read(x, y); - } - error = error - deltay; - if (error < 0) { - y = y + ystep; - error = error + deltax; + trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start); + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } } - } - - return { - line : line, - min : min, - max : max + return null; }; - }; - - Bresenham.toOtsuBinaryLine = function(result) { - var line = result.line, - image = new ImageWrapper({x: line.length - 1, y: 1}, line), - threshold = CVUtils.determineOtsuThreshold(image, 5); - line = CVUtils.sharpenLine(line); - CVUtils.thresholdImage(image, threshold); + EANReader.prototype._findEnd = function(offset, isWhite) { + var self = this, + endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false); - return { - line: line, - threshold: threshold + return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; }; - }; - - /** - * Converts the result from getBarcodeLine into a binary representation - * also considering the frequency and slope of the signal for more robust results - * @param {Object} result {line, min, max} - */ - Bresenham.toBinaryLine = function(result) { - var min = result.min, - max = result.max, - line = result.line, - slope, - slope2, - center = min + (max - min) / 2, - extrema = [], - currentDir, - dir, - threshold = (max - min) / 12, - rThreshold = -threshold, - i, - j; + EANReader.prototype._calculateFirstDigit = function(codeFrequency) { + var i, + self = this; - // 1. find extrema - currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN; - extrema.push({ - pos : 0, - val : line[0] - }); - for ( i = 0; i < line.length - 2; i++) { - slope = (line[i + 1] - line[i]); - slope2 = (line[i + 2] - line[i + 1]); - if ((slope + slope2) < rThreshold && line[i + 1] < (center*1.5)) { - dir = Slope.DIR.DOWN; - } else if ((slope + slope2) > threshold && line[i + 1] > (center*0.5)) { - dir = Slope.DIR.UP; - } else { - dir = currentDir; + for ( i = 0; i < self.CODE_FREQUENCY.length; i++) { + if (codeFrequency === self.CODE_FREQUENCY[i]) { + return i; + } } + return null; + }; - if (currentDir !== dir) { - extrema.push({ - pos : i, - val : line[i] - }); - currentDir = dir; + EANReader.prototype._decodePayload = function(code, result, decodedCodes) { + var i, + self = this, + codeFrequency = 0x0, + firstDigit; + + for ( i = 0; i < 6; i++) { + code = self._decodeCode(code.end); + if (!code) { + return null; + } + if (code.code >= self.CODE_G_START) { + code.code = code.code - self.CODE_G_START; + codeFrequency |= 1 << (5 - i); + } else { + codeFrequency |= 0 << (5 - i); + } + result.push(code.code); + decodedCodes.push(code); } - } - extrema.push({ - pos : line.length, - val : line[line.length - 1] - }); - for ( j = extrema[0].pos; j < extrema[1].pos; j++) { - line[j] = line[j] > center ? 0 : 1; - } + firstDigit = self._calculateFirstDigit(codeFrequency); + if (firstDigit === null) { + return null; + } + result.unshift(firstDigit); - // iterate over extrema and convert to binary based on avg between minmax - for ( i = 1; i < extrema.length - 1; i++) { - if (extrema[i + 1].val > extrema[i].val) { - threshold = (extrema[i].val + ((extrema[i + 1].val - extrema[i].val) / 3) * 2) | 0; - } else { - threshold = (extrema[i + 1].val + ((extrema[i].val - extrema[i + 1].val) / 3)) | 0; + code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); + if (code === null) { + return null; } + decodedCodes.push(code); - for ( j = extrema[i].pos; j < extrema[i + 1].pos; j++) { - line[j] = line[j] > threshold ? 0 : 1; + for ( i = 0; i < 6; i++) { + code = self._decodeCode(code.end, self.CODE_G_START); + if (!code) { + return null; + } + decodedCodes.push(code); + result.push(code.code); } - } - return { - line : line, - threshold : threshold + return code; }; - }; - - /** - * Used for development only - */ - Bresenham.debug = { - printFrequency: function(line, canvas) { - var i, - ctx = canvas.getContext("2d"); - canvas.width = line.length; - canvas.height = 256; - - ctx.beginPath(); - ctx.strokeStyle = "blue"; - for ( i = 0; i < line.length; i++) { - ctx.moveTo(i, 255); - ctx.lineTo(i, 255 - line[i]); + + EANReader.prototype._decode = function() { + var startInfo, + self = this, + code, + result = [], + decodedCodes = []; + + startInfo = self._findStart(); + if (!startInfo) { + return null; } - ctx.stroke(); - ctx.closePath(); - }, - - printPattern: function(line, canvas) { - var ctx = canvas.getContext("2d"), i; - - canvas.width = line.length; - ctx.fillColor = "black"; - for ( i = 0; i < line.length; i++) { - if (line[i] === 1) { - ctx.fillRect(i, 0, 1, 100); - } + code = { + code : startInfo.code, + start : startInfo.start, + end : startInfo.end + }; + decodedCodes.push(code); + code = self._decodePayload(code, result, decodedCodes); + if (!code) { + return null; + } + code = self._findEnd(code.end, false); + if (!code){ + return null; } - } - }; - return (Bresenham); -}); + decodedCodes.push(code); + + // Checksum + if (!self._checksum(result)) { + return null; + } + + return { + code : result.join(""), + start : startInfo.start, + end : code.end, + codeset : "", + startInfo : startInfo, + decodedCodes : decodedCodes + }; + }; + + EANReader.prototype._checksum = function(result) { + var sum = 0, i; + + for ( i = result.length - 2; i >= 0; i -= 2) { + sum += result[i]; + } + sum *= 3; + for ( i = result.length - 1; i >= 0; i -= 2) { + sum += result[i]; + } + return sum % 10 === 0; + }; + + return (EANReader); + } +); /* jshint undef: true, unused: true, browser:true, devel: true */ /* global define */ @@ -8755,7 +10693,7 @@ define( nextStart, end; - self._fillCounters(); + this._counters = self._fillCounters(); start = self._findStart(); if (!start) { return null; @@ -8905,334 +10843,698 @@ define( return true; }; - CodabarReader.prototype._fillCounters = function() { + CodabarReader.prototype._patternToChar = function(pattern) { + var i, + self = this; + + for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) { + if (self.CHARACTER_ENCODINGS[i] === pattern) { + return String.fromCharCode(self.ALPHABET[i]); + } + } + return -1; + }; + + CodabarReader.prototype._computeAlternatingThreshold = function(offset, end) { + var i, + min = Number.MAX_VALUE, + max = 0, + counter; + + for (i = offset; i < end; i += 2){ + counter = this._counters[i]; + if (counter > max) { + max = counter; + } + if (counter < min) { + min = counter; + } + } + + return ((min + max) / 2.0) | 0; + }; + + CodabarReader.prototype._toPattern = function(offset) { + var numCounters = 7, + end = offset + numCounters, + barThreshold, + spaceThreshold, + bitmask = 1 << (numCounters - 1), + pattern = 0, + i, + threshold; + + if (end > this._counters.length) { + return -1; + } + + barThreshold = this._computeAlternatingThreshold(offset, end); + spaceThreshold = this._computeAlternatingThreshold(offset + 1, end); + + for (i = 0; i < numCounters; i++){ + threshold = (i & 1) === 0 ? barThreshold : spaceThreshold; + if (this._counters[offset + i] > threshold) { + pattern |= bitmask; + } + bitmask >>= 1; + } + + return pattern; + }; + + CodabarReader.prototype._isStartEnd = function(pattern) { + var i; + + for (i = 0; i < this.START_END.length; i++) { + if (this.START_END[i] === pattern) { + return true; + } + } + return false; + }; + + CodabarReader.prototype._sumCounters = function(start, end) { + var i, + sum = 0; + + for (i = start; i < end; i++) { + sum += this._counters[i]; + } + return sum; + }; + + CodabarReader.prototype._findStart = function() { var self = this, - counterPos = 0, - isWhite = true, - offset = self._nextUnset(self._row), - i; + i, + pattern, + start = self._nextUnset(self._row), + end; - self._counters.length = 0; - self._counters[counterPos] = 0; - for (i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - this._counters[counterPos]++; - } else { - counterPos++; - this._counters[counterPos] = 1; - isWhite = !isWhite; + for (i = 1; i < this._counters.length; i++) { + pattern = self._toPattern(i); + if (pattern !== -1 && self._isStartEnd(pattern)) { + // TODO: Look for whitespace ahead + start += self._sumCounters(0, i); + end = start + self._sumCounters(i, i + 8); + return { + start: start, + end: end, + startCounter: i, + endCounter: i + 8 + }; } } }; - CodabarReader.prototype._patternToChar = function(pattern) { + return (CodabarReader); + } +); +/* jshint undef: true, unused: true, browser:true, devel: true */ +/* global define */ + +define( + 'upc_reader',[ + "./ean_reader" + ], + function(EANReader) { + "use strict"; + + function UPCReader() { + EANReader.call(this); + } + + var properties = { + FORMAT: {value: "upc_a", writeable: false} + }; + + UPCReader.prototype = Object.create(EANReader.prototype, properties); + UPCReader.prototype.constructor = UPCReader; + + UPCReader.prototype._decode = function() { + var result = EANReader.prototype._decode.call(this); + + if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") { + + result.code = result.code.substring(1); + return result; + } + return null; + }; + + return (UPCReader); + } +); +/* jshint undef: true, unused: true, browser:true, devel: true */ +/* global define */ + +define( + 'ean_8_reader',[ + "./ean_reader" + ], + function(EANReader) { + "use strict"; + + function EAN8Reader() { + EANReader.call(this); + } + + var properties = { + FORMAT: {value: "ean_8", writeable: false} + }; + + EAN8Reader.prototype = Object.create(EANReader.prototype, properties); + EAN8Reader.prototype.constructor = EAN8Reader; + + EAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) { var i, self = this; - for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) { - if (self.CHARACTER_ENCODINGS[i] === pattern) { - return String.fromCharCode(self.ALPHABET[i]); + for ( i = 0; i < 4; i++) { + code = self._decodeCode(code.end, self.CODE_G_START); + if (!code) { + return null; } + result.push(code.code); + decodedCodes.push(code); } - return -1; + + code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); + if (code === null) { + return null; + } + decodedCodes.push(code); + + for ( i = 0; i < 4; i++) { + code = self._decodeCode(code.end, self.CODE_G_START); + if (!code) { + return null; + } + decodedCodes.push(code); + result.push(code.code); + } + + return code; + }; + + return (EAN8Reader); + } +); +/* jshint undef: true, unused: true, browser:true, devel: true */ +/* global define */ + +define( + 'upc_e_reader',[ + "./ean_reader" + ], + function(EANReader) { + "use strict"; + + function UPCEReader() { + EANReader.call(this); + } + + var properties = { + CODE_FREQUENCY : {value: [ + [ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ], + [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]]}, + STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7]}, + FORMAT: {value: "upc_e", writeable: false} }; - CodabarReader.prototype._computeAlternatingThreshold = function(offset, end) { + UPCEReader.prototype = Object.create(EANReader.prototype, properties); + UPCEReader.prototype.constructor = UPCEReader; + + UPCEReader.prototype._decodePayload = function(code, result, decodedCodes) { var i, - min = Number.MAX_VALUE, - max = 0, - counter; + self = this, + codeFrequency = 0x0; - for (i = offset; i < end; i += 2){ - counter = this._counters[i]; - if (counter > max) { - max = counter; + for ( i = 0; i < 6; i++) { + code = self._decodeCode(code.end); + if (!code) { + return null; } - if (counter < min) { - min = counter; + if (code.code >= self.CODE_G_START) { + code.code = code.code - self.CODE_G_START; + codeFrequency |= 1 << (5 - i); } + result.push(code.code); + decodedCodes.push(code); + } + if (!self._determineParity(codeFrequency, result)) { + return null; } - return ((min + max) / 2.0) | 0; + return code; }; - CodabarReader.prototype._toPattern = function(offset) { - var numCounters = 7, - end = offset + numCounters, - barThreshold, - spaceThreshold, - bitmask = 1 << (numCounters - 1), - pattern = 0, + UPCEReader.prototype._determineParity = function(codeFrequency, result) { + var self =this, i, - threshold; - - if (end > this._counters.length) { - return -1; - } - - barThreshold = this._computeAlternatingThreshold(offset, end); - spaceThreshold = this._computeAlternatingThreshold(offset + 1, end); + nrSystem; - for (i = 0; i < numCounters; i++){ - threshold = (i & 1) === 0 ? barThreshold : spaceThreshold; - if (this._counters[offset + i] > threshold) { - pattern |= bitmask; + for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++){ + for ( i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) { + if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) { + result.unshift(nrSystem); + result.push(i); + return true; + } } - bitmask >>= 1; } - - return pattern; + return false; }; - CodabarReader.prototype._isStartEnd = function(pattern) { - var i; + UPCEReader.prototype._convertToUPCA = function(result) { + var upca = [result[0]], + lastDigit = result[result.length - 2]; - for (i = 0; i < this.START_END.length; i++) { - if (this.START_END[i] === pattern) { - return true; - } + if (lastDigit <= 2) { + upca = upca.concat(result.slice(1, 3)) + .concat([lastDigit, 0, 0, 0, 0]) + .concat(result.slice(3, 6)); + } else if (lastDigit === 3) { + upca = upca.concat(result.slice(1, 4)) + .concat([0 ,0, 0, 0, 0]) + .concat(result.slice(4,6)); + } else if (lastDigit === 4) { + upca = upca.concat(result.slice(1, 5)) + .concat([0, 0, 0, 0, 0, result[5]]); + } else { + upca = upca.concat(result.slice(1, 6)) + .concat([0, 0, 0, 0, lastDigit]); } - return false; + + upca.push(result[result.length - 1]); + return upca; }; - CodabarReader.prototype._sumCounters = function(start, end) { - var i, - sum = 0; + UPCEReader.prototype._checksum = function(result) { + return EANReader.prototype._checksum.call(this, this._convertToUPCA(result)); + }; - for (i = start; i < end; i++) { - sum += this._counters[i]; - } - return sum; + UPCEReader.prototype._findEnd = function(offset, isWhite) { + isWhite = true; + return EANReader.prototype._findEnd.call(this, offset, isWhite); }; - CodabarReader.prototype._findStart = function() { + UPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) { var self = this, - i, - pattern, - start = self._nextUnset(self._row), - end; + trailingWhitespaceEnd; - for (i = 1; i < this._counters.length; i++) { - pattern = self._toPattern(i); - if (pattern !== -1 && self._isStartEnd(pattern)) { - // TODO: Look for whitespace ahead - start += self._sumCounters(0, i); - end = start + self._sumCounters(i, i + 8); - return { - start: start, - end: end, - startCounter: i, - endCounter: i + 8 - }; + trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start)/2); + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; } } }; - return (CodabarReader); + return (UPCEReader); } ); /* jshint undef: true, unused: true, browser:true, devel: true */ /* global define */ +define('html_utils',[], function() { + "use strict"; + + function createNode(htmlStr) { + var temp = document.createElement('div'); + + temp.innerHTML = htmlStr; + while (temp.firstChild) { + return temp.firstChild; + } + } + + function mergeObjects(obj1, obj2) { + for (var p in obj2) { + try { + if (obj2[p].constructor == Object) { + obj1[p] = mergeObjects(obj1[p], obj2[p]); + } else { + obj1[p] = obj2[p]; + } + } catch(e) { + obj1[p] = obj2[p]; + } + } + + return obj1; + } + + return { + createNode : function(htmlStr) { + return createNode(htmlStr); + }, + mergeObjects : function(obj1, obj2) { + return mergeObjects(obj1, obj2); + } + }; +}); +/* jshint undef: true, unused: true, browser:true, devel: true */ +/* global define */ + define( - 'upc_reader',[ - "./ean_reader" + 'i2of5_reader',[ + "./barcode_reader", + "./html_utils" ], - function(EANReader) { + function(BarcodeReader, HTMLUtils) { "use strict"; - function UPCReader() { - EANReader.call(this); + function I2of5Reader(opts) { + opts = HTMLUtils.mergeObjects(getDefaulConfig(), opts); + BarcodeReader.call(this, opts); + this.barSpaceRatio = [1, 1]; + if (opts.normalizeBarSpaceWidth) { + this.SINGLE_CODE_ERROR = 0.38; + this.AVG_CODE_ERROR = 0.09; + } } - var properties = { - FORMAT: {value: "upc_a", writeable: false} + function getDefaulConfig() { + var config = {}; + + Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) { + config[key] = I2of5Reader.CONFIG_KEYS[key]['default']; + }); + return config; + } + + var N = 1, + W = 3, + properties = { + MODULO : {value: 10}, + START_PATTERN : {value: [N*2.5, N*2.5, N*2.5, N*2.5]}, + STOP_PATTERN : {value: [N*2, N*2, W*2]}, + CODE_PATTERN : {value: [ + [N, N, W, W, N], + [W, N, N, N, W], + [N, W, N, N, W], + [W, W, N, N, N], + [N, N, W, N, W], + [W, N, W, N, N], + [N, W, W, N, N], + [N, N, N, W, W], + [W, N, N, W, N], + [N, W, N, W, N] + ]}, + SINGLE_CODE_ERROR: {value: 0.78, writable: true}, + AVG_CODE_ERROR: {value: 0.38, writable: true}, + MAX_CORRECTION_FACTOR: {value: 5}, + FORMAT: {value: "i2of5"} + }; + + I2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties); + I2of5Reader.prototype.constructor = I2of5Reader; + + I2of5Reader.prototype._matchPattern = function(counter, code) { + if (this.config.normalizeBarSpaceWidth) { + var i, + counterSum = [0, 0], + codeSum = [0, 0], + correction = [0, 0], + correctionRatio = this.MAX_CORRECTION_FACTOR, + correctionRatioInverse = 1 / correctionRatio; + + for (i = 0; i < counter.length; i++) { + counterSum[i % 2] += counter[i]; + codeSum[i % 2] += code[i]; + } + correction[0] = codeSum[0] / counterSum[0]; + correction[1] = codeSum[1] / counterSum[1]; + + correction[0] = Math.max(Math.min(correction[0], correctionRatio), correctionRatioInverse); + correction[1] = Math.max(Math.min(correction[1], correctionRatio), correctionRatioInverse); + this.barSpaceRatio = correction; + for (i = 0; i < counter.length; i++) { + counter[i] *= this.barSpaceRatio[i % 2]; + } + } + return BarcodeReader.prototype._matchPattern.call(this, counter, code); + }; + + I2of5Reader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder) { + var counter = [], + self = this, + i, + counterPos = 0, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : 0, + end : 0 + }, + error, + j, + sum, + normalized, + epsilon = self.AVG_CODE_ERROR; + + isWhite = isWhite || false; + tryHarder = tryHarder || false; + + if (!offset) { + offset = self._nextSet(self._row); + } + + for ( i = 0; i < pattern.length; i++) { + counter[i] = 0; + } + + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + sum = 0; + for ( j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + error = self._matchPattern(normalized, pattern); + + if (error < epsilon) { + bestMatch.error = error; + bestMatch.start = i - sum; + bestMatch.end = i; + return bestMatch; + } + } + if (tryHarder) { + for (j = 0; j < counter.length - 2; j++) { + counter[j] = counter[j + 2]; + } + counter[counter.length - 2] = 0; + counter[counter.length - 1] = 0; + counterPos--; + } else { + return null; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; }; - UPCReader.prototype = Object.create(EANReader.prototype, properties); - UPCReader.prototype.constructor = UPCReader; + I2of5Reader.prototype._findStart = function() { + var self = this, + leadingWhitespaceStart, + offset = self._nextSet(self._row), + startInfo, + narrowBarWidth = 1; - UPCReader.prototype._decode = function() { - var result = EANReader.prototype._decode.call(this); + while(!startInfo) { + startInfo = self._findPattern(self.START_PATTERN, offset, false, true); + if (!startInfo) { + return null; + } + narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4); + leadingWhitespaceStart = startInfo.start - narrowBarWidth*10; + if (leadingWhitespaceStart >= 0) { + if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { + return startInfo; + } + } + offset = startInfo.end; + startInfo = null; + } + }; - if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") { + I2of5Reader.prototype._verifyTrailingWhitespace = function(endInfo) { + var self = this, + trailingWhitespaceEnd; - result.code = result.code.substring(1); - return result; + trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2); + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } } return null; }; - return (UPCReader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ + I2of5Reader.prototype._findEnd = function() { + var self = this, + endInfo, + tmp; -define( - 'ean_8_reader',[ - "./ean_reader" - ], - function(EANReader) { - "use strict"; + self._row.reverse(); + endInfo = self._findPattern(self.STOP_PATTERN); + self._row.reverse(); - function EAN8Reader() { - EANReader.call(this); - } + if (endInfo === null) { + return null; + } - var properties = { - FORMAT: {value: "ean_8", writeable: false} - }; + // reverse numbers + tmp = endInfo.start; + endInfo.start = self._row.length - endInfo.end; + endInfo.end = self._row.length - tmp; - EAN8Reader.prototype = Object.create(EANReader.prototype, properties); - EAN8Reader.prototype.constructor = EAN8Reader; + return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; + }; - EAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) { + I2of5Reader.prototype._decodePair = function(counterPair) { var i, + code, + codes = [], self = this; - for ( i = 0; i < 4; i++) { - code = self._decodeCode(code.end, self.CODE_G_START); + for (i = 0; i < counterPair.length; i++) { + code = self._decodeCode(counterPair[i]); if (!code) { return null; } - result.push(code.code); - decodedCodes.push(code); + codes.push(code); } + return codes; + }; - code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); - if (code === null) { - return null; - } - decodedCodes.push(code); + I2of5Reader.prototype._decodeCode = function(counter) { + var j, + self = this, + sum = 0, + normalized, + error, + epsilon = self.AVG_CODE_ERROR, + code, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : 0, + end : 0 + }; - for ( i = 0; i < 4; i++) { - code = self._decodeCode(code.end, self.CODE_G_START); - if (!code) { - return null; + for ( j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + for (code = 0; code < self.CODE_PATTERN.length; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; + } + } + if (bestMatch.error < epsilon) { + return bestMatch; } - decodedCodes.push(code); - result.push(code.code); } - - return code; - }; - - return (EAN8Reader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - 'upc_e_reader',[ - "./ean_reader" - ], - function(EANReader) { - "use strict"; - - function UPCEReader() { - EANReader.call(this); - } - - var properties = { - CODE_FREQUENCY : {value: [ - [ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ], - [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]]}, - STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7]}, - FORMAT: {value: "upc_e", writeable: false} + return null; }; - UPCEReader.prototype = Object.create(EANReader.prototype, properties); - UPCEReader.prototype.constructor = UPCEReader; - - UPCEReader.prototype._decodePayload = function(code, result, decodedCodes) { + I2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) { var i, self = this, - codeFrequency = 0x0; - - for ( i = 0; i < 6; i++) { - code = self._decodeCode(code.end); - if (!code) { + pos = 0, + counterLength = counters.length, + counterPair = [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0]], + codes; + + while (pos < counterLength) { + for (i = 0; i < 5; i++) { + counterPair[0][i] = counters[pos]*this.barSpaceRatio[0]; + counterPair[1][i] = counters[pos + 1]*this.barSpaceRatio[1]; + pos += 2; + } + codes = self._decodePair(counterPair); + if (!codes) { return null; } - if (code.code >= self.CODE_G_START) { - code.code = code.code - self.CODE_G_START; - codeFrequency |= 1 << (5 - i); + for (i = 0; i < codes.length; i++) { + result.push(codes[i].code + ""); + decodedCodes.push(codes[i]); } - result.push(code.code); - decodedCodes.push(code); - } - if (!self._determineParity(codeFrequency, result)) { - return null; } - - return code; + return codes; }; - UPCEReader.prototype._determineParity = function(codeFrequency, result) { - var self =this, - i, - nrSystem; - - for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++){ - for ( i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) { - if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) { - result.unshift(nrSystem); - result.push(i); - return true; - } - } - } - return false; + I2of5Reader.prototype._verifyCounterLength = function(counters) { + return (counters.length % 10 === 0); }; - UPCEReader.prototype._convertToUPCA = function(result) { - var upca = [result[0]], - lastDigit = result[result.length - 2]; + I2of5Reader.prototype._decode = function() { + var startInfo, + endInfo, + self = this, + code, + result = [], + decodedCodes = [], + counters; - if (lastDigit <= 2) { - upca = upca.concat(result.slice(1, 3)) - .concat([lastDigit, 0, 0, 0, 0]) - .concat(result.slice(3, 6)); - } else if (lastDigit === 3) { - upca = upca.concat(result.slice(1, 4)) - .concat([0 ,0, 0, 0, 0]) - .concat(result.slice(4,6)); - } else if (lastDigit === 4) { - upca = upca.concat(result.slice(1, 5)) - .concat([0, 0, 0, 0, 0, result[5]]); - } else { - upca = upca.concat(result.slice(1, 6)) - .concat([0, 0, 0, 0, lastDigit]); + startInfo = self._findStart(); + if (!startInfo) { + return null; } + decodedCodes.push(startInfo); - upca.push(result[result.length - 1]); - return upca; - }; + endInfo = self._findEnd(); + if (!endInfo) { + return null; + } - UPCEReader.prototype._checksum = function(result) { - return EANReader.prototype._checksum.call(this, this._convertToUPCA(result)); - }; + counters = self._fillCounters(startInfo.end, endInfo.start, false); + if (!self._verifyCounterLength(counters)) { + return null; + } + code = self._decodePayload(counters, result, decodedCodes); + if (!code) { + return null; + } + if (result.length % 2 !== 0 || + result.length < 6) { + return null; + } - UPCEReader.prototype._findEnd = function(offset, isWhite) { - isWhite = true; - return EANReader.prototype._findEnd.call(this, offset, isWhite); + decodedCodes.push(endInfo); + return { + code : result.join(""), + start : startInfo.start, + end : endInfo.end, + startInfo : startInfo, + decodedCodes : decodedCodes + }; }; - UPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) { - var self = this, - trailingWhitespaceEnd; - - trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start)/2); - if (trailingWhitespaceEnd < self._row.length) { - if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { - return endInfo; - } + I2of5Reader.CONFIG_KEYS = { + normalizeBarSpaceWidth: { + 'type': 'boolean', + 'default': false, + 'description': 'If true, the reader tries to normalize the' + + 'width-difference between bars and spaces' } }; - return (UPCEReader); + return (I2of5Reader); } ); /* jshint undef: true, unused: true, browser:true, devel: true */ @@ -9248,7 +11550,8 @@ define('barcode_decoder',[ 'codabar_reader', 'upc_reader', 'ean_8_reader', - 'upc_e_reader' + 'upc_e_reader', + 'i2of5_reader' ], function( Bresenham, ImageDebug, @@ -9259,7 +11562,8 @@ define('barcode_decoder',[ CodabarReader, UPCReader, EAN8Reader, - UPCEReader) { + UPCEReader, + I2of5Reader) { "use strict"; var readers = { @@ -9270,7 +11574,8 @@ define('barcode_decoder',[ code_39_vin_reader: Code39VINReader, codabar_reader: CodabarReader, upc_reader: UPCReader, - upc_e_reader: UPCEReader + upc_e_reader: UPCEReader, + i2of5_reader: I2of5Reader }; var BarcodeDecoder = { create : function(config, inputImageWrapper) { @@ -9323,11 +11628,21 @@ define('barcode_decoder',[ } function initReaders() { - var i; - for ( i = 0; i < config.readers.length; i++) { - console.log(config.readers[i]); - _barcodeReaders.push(new readers[config.readers[i]]()); - } + config.readers.forEach(function(readerConfig) { + var reader, + config = {}; + + if (typeof readerConfig === 'object') { + reader = readerConfig.format; + config = readerConfig.config; + } else if (typeof readerConfig === 'string') { + reader = readerConfig; + } + _barcodeReaders.push(new readers[reader](config)); + }); + console.log("Registered Readers: " + _barcodeReaders + .map(function(reader) {return JSON.stringify({format: reader.FORMAT, config: reader.config});}) + .join(', ')); } function initConfig() { @@ -9607,46 +11922,6 @@ define('frame_grabber',["cv_utils"], function(CVUtils) { return (FrameGrabber); }); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('html_utils',[], function() { - "use strict"; - - function createNode(htmlStr) { - var temp = document.createElement('div'); - - temp.innerHTML = htmlStr; - while (temp.firstChild) { - return temp.firstChild; - } - } - - function mergeObjects(obj1, obj2) { - for (var p in obj2) { - try { - if (obj2[p].constructor == Object) { - obj1[p] = mergeObjects(obj1[p], obj2[p]); - } else { - obj1[p] = obj2[p]; - } - } catch(e) { - obj1[p] = obj2[p]; - } - } - - return obj1; - } - - return { - createNode : function(htmlStr) { - return createNode(htmlStr); - }, - mergeObjects : function(obj1, obj2) { - return mergeObjects(obj1, obj2); - } - }; -}); /** * The basic configuration */ @@ -10006,8 +12281,6 @@ define('result_collector',["image_debug"], function(ImageDebug) { /* jshint undef: true, unused: true, browser:true, devel: true, evil: true */ /* global define */ define('quagga',[ - "code_128_reader", - "ean_reader", "input_stream", "image_wrapper", "barcode_locator", @@ -10020,9 +12293,7 @@ define('quagga',[ "image_debug", "gl-matrix", "result_collector"], -function(Code128Reader, - EANReader, - InputStream, +function(InputStream, ImageWrapper, BarcodeLocator, BarcodeDecoder, @@ -10462,9 +12733,15 @@ function(Code128Reader, onDetected : function(callback) { Events.subscribe("detected", callback); }, + offDetected: function(callback) { + Events.unsubscribe("detected", callback); + }, onProcessed: function(callback) { Events.subscribe("processed", callback); }, + offProcessed: function(callback) { + Events.unsubscribe("processed", callback); + }, setReaders: function(readers) { setReaders(readers); }, @@ -10495,10 +12772,6 @@ function(Code128Reader, start(); }); }, - Reader: { - EANReader : EANReader, - Code128Reader : Code128Reader - }, ImageWrapper: ImageWrapper, ImageDebug: ImageDebug, ResultCollector: ResultCollector diff --git a/dist/quagga.min.js b/dist/quagga.min.js index 783e8ad..50565b5 100644 --- a/dist/quagga.min.js +++ b/dist/quagga.min.js @@ -1,9 +1,20 @@ +<<<<<<< HEAD /*! quagga 2015-07-10 */ +======= +/*! quagga 2015-08-13 */ +>>>>>>> bc7283003570f6aa9b9930de2e1208cd18656951 !function(a,b){var c=b.toString();"undefined"!=typeof module?module.exports=b(c):a.Quagga=b(c)}(this,function(a){/** * @license almond 0.2.9 Copyright (c) 2011-2014, The Dojo Foundation All Rights Reserved. * Available via the MIT or new BSD license. * see: http://github.com/jrburke/almond for details */ +<<<<<<< HEAD var b,c,d;return function(a){function e(a,b){return u.call(a,b)}function f(a,b){var c,d,e,f,g,h,i,j,k,l,m,n=b&&b.split("/"),o=s.map,p=o&&o["*"]||{};if(a&&"."===a.charAt(0))if(b){for(n=n.slice(0,n.length-1),a=a.split("/"),g=a.length-1,s.nodeIdCompat&&w.test(a[g])&&(a[g]=a[g].replace(w,"")),a=n.concat(a),k=0;k0&&(a.splice(k-1,2),k-=2)}a=a.join("/")}else 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b[0]=a[0],b[1]=a[1],b[2]=a[2],b[3]=a[3],b[4]=a[4],b[5]=a[5],b[6]=a[6],b[7]=a[7],b[8]=a[8],b[9]=a[9],b[10]=a[10],b[11]=a[11],b[12]=a[12],b[13]=a[13],b[14]=a[14],b[15]=a[15],b},k.copy=function(a,b){return a[0]=b[0],a[1]=b[1],a[2]=b[2],a[3]=b[3],a[4]=b[4],a[5]=b[5],a[6]=b[6],a[7]=b[7],a[8]=b[8],a[9]=b[9],a[10]=b[10],a[11]=b[11],a[12]=b[12],a[13]=b[13],a[14]=b[14],a[15]=b[15],a},k.identity=function(a){return a[0]=1,a[1]=0,a[2]=0,a[3]=0,a[4]=0,a[5]=1,a[6]=0,a[7]=0,a[8]=0,a[9]=0,a[10]=1,a[11]=0,a[12]=0,a[13]=0,a[14]=0,a[15]=1,a},k.transpose=function(a,b){if(a===b){var c=b[1],d=b[2],e=b[3],f=b[6],g=b[7],h=b[11];a[1]=b[4],a[2]=b[8],a[3]=b[12],a[4]=c,a[6]=b[9],a[7]=b[13],a[8]=d,a[9]=f,a[11]=b[14],a[12]=e,a[13]=g,a[14]=h }else a[0]=b[0],a[1]=b[4],a[2]=b[8],a[3]=b[12],a[4]=b[1],a[5]=b[5],a[6]=b[9],a[7]=b[13],a[8]=b[2],a[9]=b[6],a[10]=b[10],a[11]=b[14],a[12]=b[3],a[13]=b[7],a[14]=b[11],a[15]=b[15];return a},k.invert=function(a,b){var c=b[0],d=b[1],e=b[2],f=b[3],g=b[4],h=b[5],i=b[6],j=b[7],k=b[8],l=b[9],m=b[10],n=b[11],o=b[12],p=b[13],q=b[14],r=b[15],s=c*h-d*g,t=c*i-e*g,u=c*j-f*g,v=d*i-e*h,w=d*j-f*h,x=e*j-f*i,y=k*p-l*o,z=k*q-m*o,A=k*r-n*o,B=l*q-m*p,C=l*r-n*p,D=m*r-n*q,E=s*D-t*C+u*B+v*A-w*z+x*y;return E?(E=1/E,a[0]=(h*D-i*C+j*B)*E,a[1]=(e*C-d*D-f*B)*E,a[2]=(p*x-q*w+r*v)*E,a[3]=(m*w-l*x-n*v)*E,a[4]=(i*A-g*D-j*z)*E,a[5]=(c*D-e*A+f*z)*E,a[6]=(q*u-o*x-r*t)*E,a[7]=(k*x-m*u+n*t)*E,a[8]=(g*C-h*A+j*y)*E,a[9]=(d*A-c*C-f*y)*E,a[10]=(o*w-p*u+r*s)*E,a[11]=(l*u-k*w-n*s)*E,a[12]=(h*z-g*B-i*y)*E,a[13]=(c*B-d*z+e*y)*E,a[14]=(p*t-o*v-q*s)*E,a[15]=(k*v-l*t+m*s)*E,a):null},k.adjoint=function(a,b){var c=b[0],d=b[1],e=b[2],f=b[3],g=b[4],h=b[5],i=b[6],j=b[7],k=b[8],l=b[9],m=b[10],n=b[11],o=b[12],p=b[13],q=b[14],r=b[15];return a[0]=h*(m*r-n*q)-l*(i*r-j*q)+p*(i*n-j*m),a[1]=-(d*(m*r-n*q)-l*(e*r-f*q)+p*(e*n-f*m)),a[2]=d*(i*r-j*q)-h*(e*r-f*q)+p*(e*j-f*i),a[3]=-(d*(i*n-j*m)-h*(e*n-f*m)+l*(e*j-f*i)),a[4]=-(g*(m*r-n*q)-k*(i*r-j*q)+o*(i*n-j*m)),a[5]=c*(m*r-n*q)-k*(e*r-f*q)+o*(e*n-f*m),a[6]=-(c*(i*r-j*q)-g*(e*r-f*q)+o*(e*j-f*i)),a[7]=c*(i*n-j*m)-g*(e*n-f*m)+k*(e*j-f*i),a[8]=g*(l*r-n*p)-k*(h*r-j*p)+o*(h*n-j*l),a[9]=-(c*(l*r-n*p)-k*(d*r-f*p)+o*(d*n-f*l)),a[10]=c*(h*r-j*p)-g*(d*r-f*p)+o*(d*j-f*h),a[11]=-(c*(h*n-j*l)-g*(d*n-f*l)+k*(d*j-f*h)),a[12]=-(g*(l*q-m*p)-k*(h*q-i*p)+o*(h*m-i*l)),a[13]=c*(l*q-m*p)-k*(d*q-e*p)+o*(d*m-e*l),a[14]=-(c*(h*q-i*p)-g*(d*q-e*p)+o*(d*i-e*h)),a[15]=c*(h*m-i*l)-g*(d*m-e*l)+k*(d*i-e*h),a},k.determinant=function(a){var b=a[0],c=a[1],d=a[2],e=a[3],f=a[4],g=a[5],h=a[6],i=a[7],j=a[8],k=a[9],l=a[10],m=a[11],n=a[12],o=a[13],p=a[14],q=a[15],r=b*g-c*f,s=b*h-d*f,t=b*i-e*f,u=c*h-d*g,v=c*i-e*g,w=d*i-e*h,x=j*o-k*n,y=j*p-l*n,z=j*q-m*n,A=k*p-l*o,B=k*q-m*o,C=l*q-m*p;return r*C-s*B+t*A+u*z-v*y+w*x},k.multiply=function(a,b,c){var d=b[0],e=b[1],f=b[2],g=b[3],h=b[4],i=b[5],j=b[6],k=b[7],l=b[8],m=b[9],n=b[10],o=b[11],p=b[12],q=b[13],r=b[14],s=b[15],t=c[0],u=c[1],v=c[2],w=c[3];return a[0]=t*d+u*h+v*l+w*p,a[1]=t*e+u*i+v*m+w*q,a[2]=t*f+u*j+v*n+w*r,a[3]=t*g+u*k+v*o+w*s,t=c[4],u=c[5],v=c[6],w=c[7],a[4]=t*d+u*h+v*l+w*p,a[5]=t*e+u*i+v*m+w*q,a[6]=t*f+u*j+v*n+w*r,a[7]=t*g+u*k+v*o+w*s,t=c[8],u=c[9],v=c[10],w=c[11],a[8]=t*d+u*h+v*l+w*p,a[9]=t*e+u*i+v*m+w*q,a[10]=t*f+u*j+v*n+w*r,a[11]=t*g+u*k+v*o+w*s,t=c[12],u=c[13],v=c[14],w=c[15],a[12]=t*d+u*h+v*l+w*p,a[13]=t*e+u*i+v*m+w*q,a[14]=t*f+u*j+v*n+w*r,a[15]=t*g+u*k+v*o+w*s,a},k.mul=k.multiply,k.translate=function(a,b,c){var d,e,f,g,h,i,j,k,l,m,n,o,p=c[0],q=c[1],r=c[2];return b===a?(a[12]=b[0]*p+b[4]*q+b[8]*r+b[12],a[13]=b[1]*p+b[5]*q+b[9]*r+b[13],a[14]=b[2]*p+b[6]*q+b[10]*r+b[14],a[15]=b[3]*p+b[7]*q+b[11]*r+b[15]):(d=b[0],e=b[1],f=b[2],g=b[3],h=b[4],i=b[5],j=b[6],k=b[7],l=b[8],m=b[9],n=b[10],o=b[11],a[0]=d,a[1]=e,a[2]=f,a[3]=g,a[4]=h,a[5]=i,a[6]=j,a[7]=k,a[8]=l,a[9]=m,a[10]=n,a[11]=o,a[12]=d*p+h*q+l*r+b[12],a[13]=e*p+i*q+m*r+b[13],a[14]=f*p+j*q+n*r+b[14],a[15]=g*p+k*q+o*r+b[15]),a},k.scale=function(a,b,c){var d=c[0],e=c[1],f=c[2];return a[0]=b[0]*d,a[1]=b[1]*d,a[2]=b[2]*d,a[3]=b[3]*d,a[4]=b[4]*e,a[5]=b[5]*e,a[6]=b[6]*e,a[7]=b[7]*e,a[8]=b[8]*f,a[9]=b[9]*f,a[10]=b[10]*f,a[11]=b[11]*f,a[12]=b[12],a[13]=b[13],a[14]=b[14],a[15]=b[15],a},k.rotate=function(a,c,d,e){var f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,A,B,C,D=e[0],E=e[1],F=e[2],G=Math.sqrt(D*D+E*E+F*F);return Math.abs(G)=1?(a!==b&&(a[0]=i,a[1]=j,a[2]=k,a[3]=l),a):(e=Math.acos(q),f=Math.sqrt(1-q*q),Math.abs(f)<.001?(a[0]=.5*i+.5*m,a[1]=.5*j+.5*n,a[2]=.5*k+.5*o,a[3]=.5*l+.5*p,a):(g=Math.sin((1-d)*e)/f,h=Math.sin(d*e)/f,a[0]=i*g+m*h,a[1]=j*g+n*h,a[2]=k*g+o*h,a[3]=l*g+p*h,a))},l.invert=function(a,b){var c=b[0],d=b[1],e=b[2],f=b[3],g=c*c+d*d+e*e+f*f,h=g?1/g:0;return a[0]=-c*h,a[1]=-d*h,a[2]=-e*h,a[3]=f*h,a},l.conjugate=function(a,b){return a[0]=-b[0],a[1]=-b[1],a[2]=-b[2],a[3]=b[3],a},l.length=g.length,l.len=l.length,l.squaredLength=g.squaredLength,l.sqrLen=l.squaredLength,l.normalize=g.normalize,l.fromMat3=function(){var a=[1,2,0];return function(b,c){var d,e=c[0]+c[4]+c[8];if(e>0)d=Math.sqrt(e+1),b[3]=.5*d,d=.5/d,b[0]=(c[7]-c[5])*d,b[1]=(c[2]-c[6])*d,b[2]=(c[3]-c[1])*d;else{var f=0;c[4]>c[0]&&(f=1),c[8]>c[3*f+f]&&(f=2);var g=a[f],h=a[g];d=Math.sqrt(c[3*f+f]-c[3*g+g]-c[3*h+h]+1),b[f]=.5*d,d=.5/d,b[3]=(c[3*h+g]-c[3*g+h])*d,b[g]=(c[3*g+f]+c[3*f+g])*d,b[h]=(c[3*h+f]+c[3*f+h])*d}return b}}(),l.str=function(a){return"quat("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+")"},"undefined"!=typeof a&&(a.quat=l)}(a.exports)}(),d("cluster",["gl-matrix"],function(a){"use strict";var b=a.vec2,c={create:function(a,c){function d(){e(a),f()}function e(a){i[a.id]=a,g.push(a)}function f(){var a,c=0;for(a=0;ac?!0:!1},getPoints:function(){return g},getCenter:function(){return h}}},createPoint:function(a,b,c){return{rad:a[c],point:a,id:b}}};return c}),d("array_helper",[],function(){"use strict";return{init:function(a,b){for(var c=a.length;c--;)a[c]=b},shuffle:function(a){var b,c,d=a.length-1;for(d;d>=0;d--)b=Math.floor(Math.random()*d),c=a[d],a[d]=a[b],a[b]=c;return a},toPointList:function(a){var b,c,d=[],e=[];for(b=0;b=b&&e.push(a[d]);return e},maxIndex:function(a){var b,c=0;for(b=0;ba[c]&&(c=b);return c},max:function(a){var b,c=0;for(b=0;bc&&(c=a[b]);return c},sum:function(a){for(var b=a.length,c=0;b--;)c+=a[b];return c}}}),d("cv_utils",["cluster","array_helper","gl-matrix"],function(a,b,c){"use strict";var d={},e=c.vec2,f=c.vec3;return d.imageRef=function(a,b){var c={x:a,y:b,toVec2:function(){return e.clone([this.x,this.y])},toVec3:function(){return f.clone([this.x,this.y,1])},round:function(){return this.x=Math.floor(this.x>0?this.x+.5:this.x-.5),this.y=Math.floor(this.y>0?this.y+.5:this.y-.5),this}};return c},d.computeIntegralImage2=function(a,b){var c,d,e=a.data,f=a.size.x,g=a.size.y,h=b.data,i=0,j=0,k=0,l=0,m=0;for(k=f,i=0,d=1;g>d;d++)i+=e[j],h[k]+=i,j+=f,k+=f;for(j=0,k=1,i=0,c=1;f>c;c++)i+=e[j],h[k]+=i,j++,k++;for(d=1;g>d;d++)for(j=d*f+1,k=(d-1)*f+1,l=d*f,m=(d-1)*f,c=1;f>c;c++)h[j]+=e[j]+h[k]+h[l]-h[m],j++,k++,l++,m++},d.computeIntegralImage=function(a,b){for(var c=a.data,d=a.size.x,e=a.size.y,f=b.data,g=0,h=0;d>h;h++)g+=c[h],f[h]=g;for(var i=1;e>i;i++){g=0;for(var j=0;d>j;j++)g+=c[i*d+j],f[i*d+j]=g+f[(i-1)*d+j]}},d.thresholdImage=function(a,b,c){c||(c=a);for(var d=a.data,e=d.length,f=c.data;e--;)f[e]=d[e]>e]++;return g},d.sharpenLine=function(a){var b,c,d=a.length,e=a[0],f=a[1];for(b=1;d-1>b;b++)c=a[b+1],a[b-1]=2*f-e-c&255,e=f,f=c;return a},d.determineOtsuThreshold=function(a,c){function e(a,b){var c,d=0;for(c=a;b>=c;c++)d+=h[c];return d}function f(a,b){var c,d=0;for(c=a;b>=c;c++)d+=c*h[c];return d}function g(){var g,i,j,k,l,m,n,o=[0],p=(1<k;k++)g=e(0,k),i=e(k+1,p),j=g*i,0===j&&(j=1),l=f(0,k)*i,m=f(k+1,p)*g,n=l-m,o[k]=n*n/j;return b.maxIndex(o)}c||(c=8);var h,i,j=8-c;return i=g(),i<=e;e++)for(f=0;n>f;f++)m[e*n+f]=0,m[(o-1-e)*n+f]=0;for(e=r;o-r>e;e++)for(f=0;r>=f;f++)m[e*n+f]=0,m[e*n+(n-1-f)]=0;for(e=r+1;o-r-1>e;e++)for(f=r+1;n-r>f;f++)g=p[(e-r-1)*n+(f-r-1)],h=p[(e-r-1)*n+(f+r)],i=p[(e+r)*n+(f-r-1)],j=p[(e+r)*n+(f+r)],q=j-i-h+g,k=q/s,m[e*n+f]=l[e*n+f]>k+5?0:1},d.cluster=function(b,c,d){function e(a){var b=!1;for(g=0;gb.x-j&&a.xb.y-k&&a.yd;d++){for(h=Math.floor(Math.random()*a.length),f=[],i=h,f.push(a[i]);null!==(i=c(i,!0));)f.push(a[i]);if(h>0)for(i=h;null!==(i=c(i,!1));)f.push(a[i]);f.length>g.length&&(g=f)}return g}},d.DILATE=1,d.ERODE=2,d.dilate=function(a,b){var c,d,e,f,g,h,i,j=a.data,k=b.data,l=a.size.y,m=a.size.x;for(c=1;l-1>c;c++)for(d=1;m-1>d;d++)f=c-1,g=c+1,h=d-1,i=d+1,e=j[f*m+h]+j[f*m+i]+j[c*m+d]+j[g*m+h]+j[g*m+i],k[c*m+d]=e>0?1:0},d.erode=function(a,b){var c,d,e,f,g,h,i,j=a.data,k=b.data,l=a.size.y,m=a.size.x;for(c=1;l-1>c;c++)for(d=1;m-1>d;d++)f=c-1,g=c+1,h=d-1,i=d+1,e=j[f*m+h]+j[f*m+i]+j[c*m+d]+j[g*m+h]+j[g*m+i],k[c*m+d]=5===e?1:0},d.subtract=function(a,b,c){c||(c=a);for(var d=a.data.length,e=a.data,f=b.data,g=c.data;d--;)g[d]=e[d]-f[d]},d.bitwiseOr=function(a,b,c){c||(c=a);for(var d=a.data.length,e=a.data,f=b.data,g=c.data;d--;)g[d]=e[d]||f[d]},d.countNonZero=function(a){for(var b=a.data.length,c=a.data,d=0;b--;)d+=c[b];return d},d.topGeneric=function(a,b,c){var d,e,f,g,h=0,i=0,j=[];for(d=0;b>d;d++)j[d]={score:0,item:null};for(d=0;di)for(f=j[h],f.score=e,f.item=a[d],i=Number.MAX_VALUE,g=0;b>g;g++)j[g].scoref;){for(d=0;h>d;d++)c[i]=Math.floor((.299*a[4*e+0]+.587*a[4*e+1]+.114*a[4*e+2]+(.299*a[4*(e+1)+0]+.587*a[4*(e+1)+1]+.114*a[4*(e+1)+2])+(.299*a[4*f+0]+.587*a[4*f+1]+.114*a[4*f+2])+(.299*a[4*(f+1)+0]+.587*a[4*(f+1)+1]+.114*a[4*(f+1)+2]))/4),i++,e+=2,f+=2;e+=j,f+=j}},d.computeGray=function(a,b,c){var d,e=a.length/4|0,f=c&&c.singleChannel===!0;if(f)for(d=0;e>d;d++)b[d]=a[4*d+0];else for(d=0;e>d;d++)b[d]=Math.floor(.299*a[4*d+0]+.587*a[4*d+1]+.114*a[4*d+2])},d.loadImageArray=function(a,b,c){c||(c=document.createElement("canvas"));var e=new Image;e.callback=b,e.onload=function(){c.width=this.width,c.height=this.height;var a=c.getContext("2d");a.drawImage(this,0,0);var b=new Uint8Array(this.width*this.height);a.drawImage(this,0,0);var e=a.getImageData(0,0,this.width,this.height).data;d.computeGray(e,b),this.callback(b,{x:this.width,y:this.height},this)},e.src=a},d.halfSample=function(a,b){for(var c=a.data,d=a.size.x,e=b.data,f=0,g=d,h=c.length,i=d/2,j=0;h>g;){for(var k=0;i>k;k++)e[j]=Math.floor((c[f]+c[f+1]+c[g]+c[g+1])/4),j++,f+=2,g+=2;f+=d,g+=d}},d.hsv2rgb=function(a,b){var c=a[0],d=a[1],e=a[2],f=e*d,g=f*(1-Math.abs(c/60%2-1)),h=e-f,i=0,j=0,k=0;return b=b||[0,0,0],60>c?(i=f,j=g):120>c?(i=g,j=f):180>c?(j=f,k=g):240>c?(j=g,k=f):300>c?(i=g,k=f):360>c&&(i=f,k=g),b[0]=255*(i+h)|0,b[1]=255*(j+h)|0,b[2]=255*(k+h)|0,b},d._computeDivisors=function(a){var b,c=[],d=[];for(b=1;bb[d]?d++:c++;return e},d.calculatePatchSize=function(a,b){function c(a){for(var b=0,c=a[Math.floor(a.length/2)];b0&&(c=Math.abs(a[b]-m)>Math.abs(a[b-1]-m)?a[b-1]:a[b]),m/ci[k-1]/i[k]?{x:c,y:c}:null}var d,e=this._computeDivisors(b.x),f=this._computeDivisors(b.y),g=Math.max(b.x,b.y),h=this._computeIntersection(e,f),i=[8,10,15,20,32,60,80],j={"x-small":5,small:4,medium:3,large:2,"x-large":1},k=j[a]||j.medium,l=i[k],m=Math.floor(g/l);return d=c(h),d||(d=c(this._computeDivisors(g)),d||(d=c(this._computeDivisors(m*l)))),d},d._parseCSSDimensionValues=function(a){var b={value:parseFloat(a),unit:a.indexOf("%")===a.length-1?"%":"%"};return b},d._dimensionsConverters={top:function(a,b){return"%"===a.unit?Math.floor(b.height*(a.value/100)):void 0},right:function(a,b){return"%"===a.unit?Math.floor(b.width-b.width*(a.value/100)):void 0},bottom:function(a,b){return"%"===a.unit?Math.floor(b.height-b.height*(a.value/100)):void 0},left:function(a,b){return"%"===a.unit?Math.floor(b.width*(a.value/100)):void 0}},d.computeImageArea=function(a,b,c){var e={width:a,height:b},f=Object.keys(c).reduce(function(a,b){var f=c[b],g=d._parseCSSDimensionValues(f),h=d._dimensionsConverters[b](g,e);return a[b]=h,a},{});return{sx:f.left,sy:f.top,sw:f.right-f.left,sh:f.bottom-f.top}},d}),d("image_wrapper",["subImage","cv_utils","array_helper","gl-matrix"],function(a,b,c,d){"use strict";function e(a,b,d,e){b?this.data=b:d?(this.data=new d(a.x*a.y),d===Array&&e&&c.init(this.data,0)):(this.data=new Uint8Array(a.x*a.y),Uint8Array===Array&&e&&c.init(this.data,0)),this.size=a}var f=d.vec2,g=d.mat2;return e.prototype.inImageWithBorder=function(a,b){return a.x>=b&&a.y>=b&&a.x=0&&u>=0&&n-1>v&&o-1>w){for(i=s,j=0;m>j;++j,f.add(i,y))for(k=0;l>k;++k,f.add(i,p))b.set(k,j,x(a,i[0],i[1]));return 0}var z=n-1,A=o-1,B=0;for(i=s,j=0;m>j;++j,f.add(i,y))for(k=0;l>k;++k,f.add(i,p))0<=i[0]&&0<=i[1]&&i[0]c;c++)for(d=0;e>d;d++)a.data[d*f+c]=this.data[(b.y+d)*this.size.x+b.x+c]},e.prototype.copyTo=function(a){for(var b=this.data.length,c=this.data,d=a.data;b--;)d[b]=c[b]},e.prototype.get=function(a,b){return this.data[b*this.size.x+a]},e.prototype.getSafe=function(a,b){var c;if(!this.indexMapping){for(this.indexMapping={x:[],y:[]},c=0;ca;a++)d[a]=d[(c-1)*b+a]=0;for(a=1;c-1>a;a++)d[a*b]=d[a*b+(b-1)]=0},e.prototype.invert=function(){for(var a=this.data,b=a.length;b--;)a[b]=a[b]?0:1},e.prototype.convolve=function(a){var b,c,d,e,f=a.length/2|0,g=0;for(c=0;c=e;e++)for(d=-f;f>=d;d++)g+=a[e+f][d+f]*this.getSafe(b+d,c+e);this.data[c*this.size.x+b]=g}},e.prototype.moments=function(a){var b,c,d,e,g,h,i,j,k,l,m,n,o=this.data,p=this.size.y,q=this.size.x,r=[],s=[],t=Math.PI,u=t/4;if(0>=a)return s;for(g=0;a>g;g++)r[g]={m00:0,m01:0,m10:0,m11:0,m02:0,m20:0,theta:0,rad:0};for(c=0;p>c;c++)for(e=c*c,b=0;q>b;b++)d=o[c*q+b],d>0&&(h=r[d-1],h.m00+=1,h.m01+=c,h.m10+=b,h.m11+=b*c,h.m02+=e,h.m20+=b*b);for(g=0;a>g;g++)h=r[g],isNaN(h.m00)||0===h.m00||(l=h.m10/h.m00,m=h.m01/h.m00,i=h.m11/h.m00-l*m,j=h.m02/h.m00-m*m,k=h.m20/h.m00-l*l,n=(j-k)/(2*i),n=.5*Math.atan(n)+(i>=0?u:-u)+t,h.theta=(180*n/t+90)%180-90,h.theta<0&&(h.theta+=180),h.rad=n>t?n-t:n,h.vec=f.clone([Math.cos(n),Math.sin(n)]),s.push(h));return s},e.prototype.show=function(a,b){var c,d,e,f,g,h,i;for(b||(b=1),c=a.getContext("2d"),a.width=this.size.x,a.height=this.size.y,d=c.getImageData(0,0,a.width,a.height),e=d.data,f=0,i=0;ic||c>360)&&(c=360);for(var e=[0,1,1],f=[0,0,0],g=[255,255,255],h=[0,0,0],i=[],j=a.getContext("2d"),k=j.getImageData(d.x,d.y,this.size.x,this.size.y),l=k.data,m=this.data.length;m--;)e[0]=this.data[m]*c,i=e[0]<=0?g:e[0]>=360?h:b.hsv2rgb(e,f),l[4*m+0]=i[0],l[4*m+1]=i[1],l[4*m+2]=i[2],l[4*m+3]=255;j.putImageData(k,d.x,d.y)},e}),d("tracer",[],function(){"use strict";var a={searchDirections:[[0,1],[1,1],[1,0],[1,-1],[0,-1],[-1,-1],[-1,0],[-1,1]],create:function(a,b){function c(a,b,c,d){var e,k,l;for(e=0;7>e;e++){if(k=a.cy+i[a.dir][0],l=a.cx+i[a.dir][1],f=k*j+l,g[f]===b&&(0===h[f]||h[f]===c))return h[f]=c,a.cy=k,a.cx=l,!0;0===h[f]&&(h[f]=d),a.dir=(a.dir+1)%8}return!1}function d(a,b,c){return{dir:c,x:a,y:b,next:null,prev:null}}function e(a,b,e,f,g){var h,i,j,k=null,l={cx:b,cy:a,dir:0};if(c(l,f,e,g)){k=d(b,a,l.dir),h=k,j=l.dir,i=d(l.cx,l.cy,0),i.prev=h,h.next=i,i.next=null,h=i;do l.dir=(l.dir+6)%8,c(l,f,e,g),j!=l.dir?(h.dir=l.dir,i=d(l.cx,l.cy,0),i.prev=h,h.next=i,i.next=null,h=i):(h.dir=j,h.x=l.cx,h.y=l.cy),j=l.dir;while(l.cx!=b||l.cy!=a);k.prev=h.prev,h.prev.next=k}return k}var f,g=a.data,h=b.data,i=this.searchDirections,j=a.size.x;return{trace:function(a,b,d,e){return c(a,b,d,e)},contourTracing:function(a,b,c,d,f){return e(a,b,c,d,f)}}}};return a}),d("rasterizer",["tracer"],function(a){"use strict";var b={createContour2D:function(){return{dir:null,index:null,firstVertex:null,insideContours:null,nextpeer:null,prevpeer:null}},CONTOUR_DIR:{CW_DIR:0,CCW_DIR:1,UNKNOWN_DIR:2},DIR:{OUTSIDE_EDGE:-32767,INSIDE_EDGE:-32766},create:function(c,d){var e=c.data,f=d.data,g=c.size.x,h=c.size.y,i=a.create(c,d);return{rasterize:function(a){var c,d,j,k,l,m,n,o,p,q,r,s,t=[],u=0;for(s=0;400>s;s++)t[s]=0;for(t[0]=e[0],p=null,m=1;h-1>m;m++)for(k=0,d=t[0],l=1;g-1>l;l++)if(r=m*g+l,0===f[r])if(c=e[r],c!==d){if(0===k)j=u+1,t[j]=c,d=c,n=i.contourTracing(m,l,j,c,b.DIR.OUTSIDE_EDGE),null!==n&&(u++,k=j,o=b.createContour2D(),o.dir=b.CONTOUR_DIR.CW_DIR,o.index=k,o.firstVertex=n,o.nextpeer=p,o.insideContours=null,null!==p&&(p.prevpeer=o),p=o);else if(n=i.contourTracing(m,l,b.DIR.INSIDE_EDGE,c,k),null!==n){for(o=b.createContour2D(),o.firstVertex=n,o.insideContours=null,o.dir=0===a?b.CONTOUR_DIR.CCW_DIR:b.CONTOUR_DIR.CW_DIR,o.index=a,q=p;null!==q&&q.index!==k;)q=q.nextpeer;null!==q&&(o.nextpeer=q.insideContours,null!==q.insideContours&&(q.insideContours.prevpeer=o),q.insideContours=o)}}else f[r]=k;else f[r]===b.DIR.OUTSIDE_EDGE||f[r]===b.DIR.INSIDE_EDGE?(k=0,d=f[r]===b.DIR.INSIDE_EDGE?e[r]:t[0]):(k=f[r],d=t[k]);for(q=p;null!==q;)q.index=a,q=q.nextpeer;return{cc:p,count:u}},debug:{drawContour:function(a,c){var d,e,f,g=a.getContext("2d"),h=c;for(g.strokeStyle="red",g.fillStyle="red",g.lineWidth=1,d=null!==h?h.insideContours:null;null!==h;){switch(null!==d?(e=d,d=d.nextpeer):(e=h,h=h.nextpeer,d=null!==h?h.insideContours:null),e.dir){case b.CONTOUR_DIR.CW_DIR:g.strokeStyle="red";break;case b.CONTOUR_DIR.CCW_DIR:g.strokeStyle="blue";break;case b.CONTOUR_DIR.UNKNOWN_DIR:g.strokeStyle="green"}f=e.firstVertex,g.beginPath(),g.moveTo(f.x,f.y);do f=f.next,g.lineTo(f.x,f.y);while(f!==e.firstVertex);g.stroke()}}}}}};return b}),d("skeletonizer",[],function(){"use strict";function a(stdlib, foreign, buffer) {"use asm";var images=new stdlib.Uint8Array(buffer),size=foreign.size|0,imul=stdlib.Math.imul;function erode(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for ( v=1; (v|0)<((size - 1)|0); v=(v+1)|0) {offset=(offset+size)|0;for ( u=1; (u|0)<((size - 1)|0); u=(u+1)|0) {yStart1=(offset - size)|0;yStart2=(offset+size)|0;xStart1=(u - 1)|0;xStart2=(u+1)|0;sum=((images[(inImagePtr+yStart1+xStart1)|0]|0)+(images[(inImagePtr+yStart1+xStart2)|0]|0)+(images[(inImagePtr+offset+u)|0]|0)+(images[(inImagePtr+yStart2+xStart1)|0]|0)+(images[(inImagePtr+yStart2+xStart2)|0]|0))|0;if ((sum|0) == (5|0)) {images[(outImagePtr+offset+u)|0]=1;} else {images[(outImagePtr+offset+u)|0]=0;}}}return;}function subtract(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;images[(outImagePtr+length)|0]=((images[(aImagePtr+length)|0]|0) - (images[(bImagePtr+length)|0]|0))|0;}}function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;images[(outImagePtr+length)|0]=((images[(aImagePtr+length)|0]|0)|(images[(bImagePtr+length)|0]|0))|0;}}function countNonZero(imagePtr) {imagePtr=imagePtr|0;var sum=0,length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;sum=((sum|0)+(images[(imagePtr+length)|0]|0))|0;}return (sum|0);}function init(imagePtr, value) {imagePtr=imagePtr|0;value=value|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;images[(imagePtr+length)|0]=value;}}function dilate(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for ( v=1; (v|0)<((size - 1)|0); v=(v+1)|0) {offset=(offset+size)|0;for ( u=1; (u|0)<((size - 1)|0); u=(u+1)|0) {yStart1=(offset - size)|0;yStart2=(offset+size)|0;xStart1=(u - 1)|0;xStart2=(u+1)|0;sum=((images[(inImagePtr+yStart1+xStart1)|0]|0)+(images[(inImagePtr+yStart1+xStart2)|0]|0)+(images[(inImagePtr+offset+u)|0]|0)+(images[(inImagePtr+yStart2+xStart1)|0]|0)+(images[(inImagePtr+yStart2+xStart2)|0]|0))|0;if ((sum|0)>(0|0)) {images[(outImagePtr+offset+u)|0]=1;} else {images[(outImagePtr+offset+u)|0]=0;}}}return;}function memcpy(srcImagePtr, dstImagePtr) {srcImagePtr=srcImagePtr|0;dstImagePtr=dstImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;images[(dstImagePtr+length)|0]=(images[(srcImagePtr+length)|0]|0);}}function zeroBorder(imagePtr) {imagePtr=imagePtr|0;var x=0,y=0;for ( x=0; (x|0)<((size - 1)|0); x=(x+1)|0) {images[(imagePtr+x)|0]=0;images[(imagePtr+y)|0]=0;y=((y+size) - 1)|0;images[(imagePtr+y)|0]=0;y=(y+1)|0;}for ( x=0; (x|0)<(size|0); x=(x+1)|0) {images[(imagePtr+y)|0]=0;y=(y+1)|0;}}function skeletonize() {var subImagePtr=0,erodedImagePtr=0,tempImagePtr=0,skelImagePtr=0,sum=0,done=0;erodedImagePtr=imul(size, size)|0;tempImagePtr=(erodedImagePtr+erodedImagePtr)|0;skelImagePtr=(tempImagePtr+erodedImagePtr)|0;init(skelImagePtr, 0);zeroBorder(subImagePtr);do {erode(subImagePtr, erodedImagePtr);dilate(erodedImagePtr, tempImagePtr);subtract(subImagePtr, tempImagePtr, tempImagePtr);bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);memcpy(erodedImagePtr, subImagePtr);sum=countNonZero(subImagePtr)|0;done=((sum|0) == 0|0);} while(!done);}return {skeletonize : skeletonize};} -return Math.imul=Math.imul||function(a,b){var c=a>>>16&65535,d=65535&a,e=b>>>16&65535,f=65535&b;return d*f+(c*f+d*e<<16>>>0)|0},a}),d("image_debug",[],function(){"use strict";return{drawRect:function(a,b,c,d){c.strokeStyle=d.color,c.fillStyle=d.color,c.lineWidth=1,c.beginPath(),c.strokeRect(a.x,a.y,b.x,b.y)},drawPath:function(a,b,c,d){c.strokeStyle=d.color,c.fillStyle=d.color,c.lineWidth=d.lineWidth,c.beginPath(),c.moveTo(a[0][b.x],a[0][b.y]);for(var e=1;eb&&(b+=180),b=(180-b)*Math.PI/180,f=I.clone([Math.cos(b),Math.sin(b),-Math.sin(b),Math.cos(b)]),c=0;cd;d++)H.transformMat2(e.box[d],e.box[d],f);t.boxFromPatches.showTransformed&&g.drawPath(e.box,{x:0,y:1},F.ctx.binary,{color:"#99ff00",lineWidth:2})}for(c=0;cd;d++)e.box[d][0]l&&(l=e.box[d][0]),e.box[d][1]m&&(m=e.box[d][1]);for(h=[[j,k],[l,k],[l,m],[j,m]],t.boxFromPatches.showTransformedBox&&g.drawPath(h,{x:0,y:1},F.ctx.binary,{color:"#ff0000",lineWidth:2}),i=t.halfSample?2:1,f=I.invert(f,f),d=0;4>d;d++)H.transformMat2(h[d],h[d],f);for(t.boxFromPatches.showBB&&g.drawPath(h,{x:0,y:1},F.ctx.binary,{color:"#ff0000",lineWidth:2}),d=0;4>d;d++)H.scale(h[d],h[d],i);return h}function l(){b.otsuThreshold(u,B),B.zeroBorder(),t.showCanvas&&B.show(F.dom.binary,255)}function m(){var a,b,d,e,h,i,j,k,l=[];for(a=0;ab;b++)d.push(0);for(c=z.data.length;c--;)z.data[c]>0&&d[z.data[c]-1]++;return d=d.map(function(a,b){return{val:a,label:b+1}}),d.sort(function(a,b){return b.val-a.val}),e=d.filter(function(a){return a.val>=5})}function o(a,c){var d,e,f,h,i,j=[],l=[],m=[0,1,1],n=[0,0,0];for(d=0;d=2){for(e=0;el&&j.push(a[e]);if(j.length>=2){for(i=j.length,g=p(j),f=0,e=0;e1&&g.length>=j.length/4*3&&g.length>a.length/4&&(f/=g.length,h={index:b[1]*G.x+b[0],pos:{x:c,y:d},box:[H.clone([c,d]),H.clone([c+w.size.x,d]),H.clone([c+w.size.x,d+w.size.y]),H.clone([c,d+w.size.y])],moments:g,rad:f,vec:H.clone([Math.cos(f),Math.sin(f)])},k.push(h))}}return k}function s(a){function c(){var a;for(a=0;ak&&e(h))):z.data[h]=Number.MAX_VALUE}var h,i,j=0,k=.95,l=0,m=[0,1,1],n=[0,0,0];for(f.init(y.data,0),f.init(z.data,0),f.init(A.data,null),h=0;h0&&z.data[h]<=j&&(i=A.data[h],m[0]=z.data[h]/(j+1)*360,b.hsv2rgb(m,n),g.drawRect(i.pos,w.size,F.ctx.binary,{color:"rgb("+n.join(",")+")",lineWidth:2}));return j}var t,u,v,w,x,y,z,A,B,C,D,E,F={ctx:{binary:null},dom:{binary:null}},G={x:0,y:0},H=h.vec2,I=h.mat2,J=this;return{init:function(a,b){t=b,D=a,i(),j()},locate:function(){var a,c,d;if(t.halfSample&&b.halfSample(D,u),l(),a=m(),a.lengthe?null:(c=n(e),0===c.length?null:d=o(c,e))},checkImageConstraints:function(a,c){var d,e,f,g=a.getWidth(),h=a.getHeight(),i=c.halfSample?.5:1;if(a.getConfig().area&&(f=b.computeImageArea(g,h,a.getConfig().area),a.setTopRight({x:f.sx,y:f.sy}),a.setCanvasSize({x:g,y:h}),g=f.sw,h=f.sh),e={x:Math.floor(g*i),y:Math.floor(h*i)},d=b.calculatePatchSize(c.patchSize,e),console.log("Patch-Size: 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b.prototype=Object.create(a.prototype),b.prototype.constructor=b,b.prototype._decode=function(){var b=a.prototype._decode.apply(this);if(!b)return null;var d=b.code;if(d)return d=d.replace(c.IOQ,""),d.match(c.AZ09)?this._checkChecksum(d)?(b.code=d,b):null:(console.log("Failed AZ09 pattern code:",d),null)},b.prototype._checkChecksum=function(a){return!!a},b}),d("codabar_reader",["./barcode_reader"],function(a){"use strict";function b(){a.call(this),this._counters=[]}var c={ALPHABETH_STRING:{value:"0123456789-$:/.+ABCD"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,45,36,58,47,46,43,65,66,67,68]},CHARACTER_ENCODINGS:{value:[3,6,9,96,18,66,33,36,48,72,12,24,69,81,84,21,26,41,11,14]},START_END:{value:[26,41,11,14]},MIN_ENCODED_CHARS:{value:4},MAX_ACCEPTABLE:{value:2},PADDING:{value:1.5},FORMAT:{value:"codabar",writeable:!1}};return b.prototype=Object.create(a.prototype,c),b.prototype.constructor=b,b.prototype._decode=function(){var a,b,c,d,e,f=this,g=[];if(f._fillCounters(),a=f._findStart(),!a)return null;d=a.startCounter;do{if(c=f._toPattern(d),0>c)return null;if(b=f._patternToChar(c),0>b)return null;if(g.push(b),d+=8,g.length>1&&f._isStartEnd(c))break}while(df._counters.length?f._counters.length:d,e=a.start+f._sumCounters(a.startCounter,d-8),{code:g.join(""),start:a.start,end:e,startInfo:a,decodedCodes:g}):null},b.prototype._verifyWhitespace=function(a,b){return(0>=a-1||this._counters[a-1]>=this._calculatePatternLength(a)/2)&&(b+8>=this._counters.length||this._counters[b+7]>=this._calculatePatternLength(b)/2)?!0:!1},b.prototype._calculatePatternLength=function(a){var b,c=0;for(b=a;a+7>b;b++)c+=this._counters[b];return c},b.prototype._thresholdResultPattern=function(a,b){var c,d,e,f,g,h=this,i={space:{narrow:{size:0,counts:0,min:0,max:Number.MAX_VALUE},wide:{size:0,counts:0,min:0,max:Number.MAX_VALUE}},bar:{narrow:{size:0,counts:0,min:0,max:Number.MAX_VALUE},wide:{size:0,counts:0,min:0,max:Number.MAX_VALUE}}},j=b;for(e=0;e=0;f--)c=2===(1&f)?i.bar:i.space,d=1===(1&g)?c.wide:c.narrow,d.size+=h._counters[j+f],d.counts++,g>>=1;j+=8}return["space","bar"].forEach(function(a){var b=i[a];b.wide.min=Math.floor((b.narrow.size/b.narrow.counts+b.wide.size/b.wide.counts)/2),b.narrow.max=Math.ceil(b.wide.min),b.wide.max=Math.ceil((b.wide.size*h.MAX_ACCEPTABLE+h.PADDING)/b.wide.counts)}),i},b.prototype._charToPattern=function(a){var b,c=this,d=a.charCodeAt(0);for(b=0;b=0;d--){if(e=0===(1&d)?j.bar:j.space,f=1===(1&h)?e.wide:e.narrow,g=i._counters[k+d],gf.max)return!1;h>>=1}k+=8}return!0},b.prototype._fillCounters=function(){var a,b=this,c=0,d=!0,e=b._nextUnset(b._row);for(b._counters.length=0,b._counters[c]=0,a=e;ac;c+=2)d=this._counters[c],d>f&&(f=d),e>d&&(e=d);return(e+f)/2|0},b.prototype._toPattern=function(a){var b,c,d,e,f=7,g=a+f,h=1<this._counters.length)return-1;for(b=this._computeAlternatingThreshold(a,g),c=this._computeAlternatingThreshold(a+1,g),d=0;f>d;d++)e=0===(1&d)?b:c,this._counters[a+d]>e&&(i|=h),h>>=1;return i},b.prototype._isStartEnd=function(a){var b;for(b=0;bc;c++)d+=this._counters[c];return d},b.prototype._findStart=function(){var a,b,c,d=this,e=d._nextUnset(d._row);for(a=1;ad;d++){if(a=e._decodeCode(a.end,e.CODE_G_START),!a)return null;b.push(a.code),c.push(a)}if(a=e._findPattern(e.MIDDLE_PATTERN,a.end,!0,!1),null===a)return null;for(c.push(a),d=0;4>d;d++){if(a=e._decodeCode(a.end,e.CODE_G_START),!a)return null;c.push(a),b.push(a.code)}return a},b}),d("upc_e_reader",["./ean_reader"],function(a){"use strict";function b(){a.call(this)}var c={CODE_FREQUENCY:{value:[[56,52,50,49,44,38,35,42,41,37],[7,11,13,14,19,25,28,21,22,26]]},STOP_PATTERN:{value:[1/6*7,1/6*7,1/6*7,1/6*7,1/6*7,1/6*7]},FORMAT:{value:"upc_e",writeable:!1}};return b.prototype=Object.create(a.prototype,c),b.prototype.constructor=b,b.prototype._decodePayload=function(a,b,c){var d,e=this,f=0;for(d=0;6>d;d++){if(a=e._decodeCode(a.end),!a)return null;a.code>=e.CODE_G_START&&(a.code=a.code-e.CODE_G_START,f|=1<<5-d),b.push(a.code),c.push(a)}return e._determineParity(f,b)?a:null},b.prototype._determineParity=function(a,b){var c,d,e=this;for(d=0;d=c?b.concat(a.slice(1,3)).concat([c,0,0,0,0]).concat(a.slice(3,6)):3===c?b.concat(a.slice(1,4)).concat([0,0,0,0,0]).concat(a.slice(4,6)):4===c?b.concat(a.slice(1,5)).concat([0,0,0,0,0,a[5]]):b.concat(a.slice(1,6)).concat([0,0,0,0,c]),b.push(a[a.length-1]),b},b.prototype._checksum=function(b){return a.prototype._checksum.call(this,this._convertToUPCA(b))},b.prototype._findEnd=function(b,c){return c=!0,a.prototype._findEnd.call(this,b,c)},b.prototype._verifyTrailingWhitespace=function(a){var b,c=this;return b=a.end+(a.end-a.start)/2,b1&&(!d.inImageWithBorder(a[0],0)||!d.inImageWithBorder(a[1],0));)c-=Math.ceil(c/2),e(-c);return a}function i(a){return[{x:(a[1][0]-a[0][0])/2+a[0][0],y:(a[1][1]-a[0][1])/2+a[0][1]},{x:(a[3][0]-a[2][0])/2+a[2][0],y:(a[3][1]-a[2][1])/2+a[2][1]}]}function j(e){var f,g=null,h=a.getBarcodeLine(d,e[0],e[1]);for(c.showFrequency&&(b.drawPath(e,{x:"x",y:"y"},o.ctx.overlay,{color:"red",lineWidth:3}),a.debug.printFrequency(h.line,o.dom.frequency)),a.toBinaryLine(h),c.showPattern&&a.debug.printPattern(h.line,o.dom.pattern),f=0;fd&&null===i;d++)e=g/h*d*(d%2===0?-1:1),f={y:e*k,x:e*l},b[0].y+=f.x,b[0].x-=f.y,b[1].y+=f.x,b[1].x-=f.y,i=j(b);return i}function m(a){return Math.sqrt(Math.pow(Math.abs(a[1].y-a[0].y),2)+Math.pow(Math.abs(a[1].x-a[0].x),2))}function n(a){var d,e,f,g,k=o.ctx.overlay;return c.drawBoundingBox&&k&&b.drawPath(a,{x:0,y:1},k,{color:"blue",lineWidth:2}),d=i(a),g=m(d),e=Math.atan2(d[1].y-d[0].y,d[1].x-d[0].x),d=h(d,e,Math.floor(.1*g)),null===d?null:(f=j(d),null===f&&(f=l(a,d,e)),null===f?null:(f&&c.drawScanline&&k&&b.drawPath(d,{x:"x",y:"y"},k,{color:"red",lineWidth:3}),{codeResult:f.codeResult,line:d,angle:e,pattern:f.barcodeLine.line,threshold:f.barcodeLine.threshold}))}var o={ctx:{frequency:null,pattern:null,overlay:null},dom:{frequency:null,pattern:null,overlay:null}},p=[];return e(),f(),g(),{decodeFromBoundingBox:function(a){return n(a)},decodeFromBoundingBoxes:function(a){var b,c;for(b=0;b0?a.videoWidth>0&&a.videoHeight>0?(console.log(a.videoWidth+"px x "+a.videoHeight+"px"),b()):window.setTimeout(c,500):b("Unable to play video stream. 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q(){if("undefined"!=typeof document)for(var a=[{node:document.querySelector("div[data-controls]"),prop:j.controls},{node:O.dom.overlay,prop:j.visual.show}],b=0;b0?C(function(){console.log("Workers created"),t(a)}):(p(),t(a))}function t(a){H.play(),a()}function u(){if("undefined"!=typeof document){var a=document.querySelector("#interactive.viewport");if(O.dom.image=document.querySelector("canvas.imgBuffer"),O.dom.image||(O.dom.image=document.createElement("canvas"),O.dom.image.className="imgBuffer",a&&"ImageStream"==j.inputStream.type&&a.appendChild(O.dom.image)),O.ctx.image=O.dom.image.getContext("2d"),O.dom.image.width=H.getCanvasSize().x,O.dom.image.height=H.getCanvasSize().y,O.dom.overlay=document.querySelector("canvas.drawingBuffer"),!O.dom.overlay){O.dom.overlay=document.createElement("canvas"),O.dom.overlay.className="drawingBuffer",a&&a.appendChild(O.dom.overlay);var 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c={ALPHABETH_STRING:{value:"0123456789-$:/.+ABCD"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,45,36,58,47,46,43,65,66,67,68]},CHARACTER_ENCODINGS:{value:[3,6,9,96,18,66,33,36,48,72,12,24,69,81,84,21,26,41,11,14]},START_END:{value:[26,41,11,14]},MIN_ENCODED_CHARS:{value:4},MAX_ACCEPTABLE:{value:2},PADDING:{value:1.5},FORMAT:{value:"codabar",writeable:!1}};return b.prototype=Object.create(a.prototype,c),b.prototype.constructor=b,b.prototype._decode=function(){var a,b,c,d,e,f=this,g=[];if(f._fillCounters(),a=f._findStart(),!a)return null;d=a.startCounter;do{if(c=f._toPattern(d),0>c)return null;if(b=f._patternToChar(c),0>b)return 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a,b,c,d=this,e=d._nextUnset(d._row);for(a=1;ad;d++){if(a=e._decodeCode(a.end,e.CODE_G_START),!a)return null;b.push(a.code),c.push(a)}if(a=e._findPattern(e.MIDDLE_PATTERN,a.end,!0,!1),null===a)return null;for(c.push(a),d=0;4>d;d++){if(a=e._decodeCode(a.end,e.CODE_G_START),!a)return null;c.push(a),b.push(a.code)}return a},b}),d("upc_e_reader",["./ean_reader"],function(a){"use strict";function b(){a.call(this)}var c={CODE_FREQUENCY:{value:[[56,52,50,49,44,38,35,42,41,37],[7,11,13,14,19,25,28,21,22,26]]},STOP_PATTERN:{value:[1/6*7,1/6*7,1/6*7,1/6*7,1/6*7,1/6*7]},FORMAT:{value:"upc_e",writeable:!1}};return b.prototype=Object.create(a.prototype,c),b.prototype.constructor=b,b.prototype._decodePayload=function(a,b,c){var d,e=this,f=0;for(d=0;6>d;d++){if(a=e._decodeCode(a.end),!a)return null;a.code>=e.CODE_G_START&&(a.code=a.code-e.CODE_G_START,f|=1<<5-d),b.push(a.code),c.push(a)}return e._determineParity(f,b)?a:null},b.prototype._determineParity=function(a,b){var c,d,e=this;for(d=0;d=c?b.concat(a.slice(1,3)).concat([c,0,0,0,0]).concat(a.slice(3,6)):3===c?b.concat(a.slice(1,4)).concat([0,0,0,0,0]).concat(a.slice(4,6)):4===c?b.concat(a.slice(1,5)).concat([0,0,0,0,0,a[5]]):b.concat(a.slice(1,6)).concat([0,0,0,0,c]),b.push(a[a.length-1]),b},b.prototype._checksum=function(b){return a.prototype._checksum.call(this,this._convertToUPCA(b))},b.prototype._findEnd=function(b,c){return c=!0,a.prototype._findEnd.call(this,b,c)},b.prototype._verifyTrailingWhitespace=function(a){var b,c=this;return b=a.end+(a.end-a.start)/2,b1&&(!d.inImageWithBorder(a[0],0)||!d.inImageWithBorder(a[1],0));)c-=Math.ceil(c/2),e(-c);return a}function i(a){return[{x:(a[1][0]-a[0][0])/2+a[0][0],y:(a[1][1]-a[0][1])/2+a[0][1]},{x:(a[3][0]-a[2][0])/2+a[2][0],y:(a[3][1]-a[2][1])/2+a[2][1]}]}function j(e){var f,g=null,h=a.getBarcodeLine(d,e[0],e[1]);for(c.showFrequency&&(b.drawPath(e,{x:"x",y:"y"},o.ctx.overlay,{color:"red",lineWidth:3}),a.debug.printFrequency(h.line,o.dom.frequency)),a.toBinaryLine(h),c.showPattern&&a.debug.printPattern(h.line,o.dom.pattern),f=0;fd&&null===i;d++)e=g/h*d*(d%2===0?-1:1),f={y:e*k,x:e*l},b[0].y+=f.x,b[0].x-=f.y,b[1].y+=f.x,b[1].x-=f.y,i=j(b);return i}function m(a){return Math.sqrt(Math.pow(Math.abs(a[1].y-a[0].y),2)+Math.pow(Math.abs(a[1].x-a[0].x),2))}function n(a){var d,e,f,g,k=o.ctx.overlay;return c.drawBoundingBox&&k&&b.drawPath(a,{x:0,y:1},k,{color:"blue",lineWidth:2}),d=i(a),g=m(d),e=Math.atan2(d[1].y-d[0].y,d[1].x-d[0].x),d=h(d,e,Math.floor(.1*g)),null===d?null:(f=j(d),null===f&&(f=l(a,d,e)),null===f?null:(f&&c.drawScanline&&k&&b.drawPath(d,{x:"x",y:"y"},k,{color:"red",lineWidth:3}),{codeResult:f.codeResult,line:d,angle:e,pattern:f.barcodeLine.line,threshold:f.barcodeLine.threshold}))}var o={ctx:{frequency:null,pattern:null,overlay:null},dom:{frequency:null,pattern:null,overlay:null}},p=[];return e(),f(),g(),{decodeFromBoundingBox:function(a){return n(a)},decodeFromBoundingBoxes:function(a){var b,c;for(b=0;b0?a.videoWidth>0&&a.videoHeight>0?(console.log(a.videoWidth+"px x "+a.videoHeight+"px"),b()):window.setTimeout(c,500):b("Unable to play video stream. 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a=g&&g.getVideoTracks();a.length&&a[0].stop(),g=null}}}),d("result_collector",["image_debug"],function(a){"use strict";function b(a,b){return b?b.some(function(b){return Object.keys(b).every(function(c){return b[c]===a[c]})}):!1}function c(a,b){return"function"==typeof b?b(a):!0}return{create:function(d){function e(a){return i&&a&&!b(a,d.blacklist)&&c(a,d.filter)}var f=document.createElement("canvas"),g=f.getContext("2d"),h=[],i=d.capacity||20,j=d.capture===!0;return{addResult:function(b,c,d){var k={};e(d)&&(i--,k.codeResult=d,j&&(f.width=c.x,f.height=c.y,a.drawImage(b,c,g),k.frame=f.toDataURL()),h.push(k))},getResults:function(){return h}}}}}),d("quagga",["code_128_reader","ean_reader","input_stream","image_wrapper","barcode_locator","barcode_decoder","frame_grabber","html_utils","config","events","camera_access","image_debug","gl-matrix","result_collector"],function(b,c,d,e,f,g,h,i,j,k,l,m,n,o){"use strict";function p(a){v(a),M=g.create(j.decoder,K)}function q(){if("undefined"!=typeof document)for(var a=[{node:document.querySelector("div[data-controls]"),prop:j.controls},{node:O.dom.overlay,prop:j.visual.show}],b=0;b0?C(function(){console.log("Workers created"),t(a)}):(p(),t(a))}function t(a){H.play(),a()}function u(){if("undefined"!=typeof document){var a=document.querySelector("#interactive.viewport");if(O.dom.image=document.querySelector("canvas.imgBuffer"),O.dom.image||(O.dom.image=document.createElement("canvas"),O.dom.image.className="imgBuffer",a&&"ImageStream"==j.inputStream.type&&a.appendChild(O.dom.image)),O.ctx.image=O.dom.image.getContext("2d"),O.dom.image.width=H.getCanvasSize().x,O.dom.image.height=H.getCanvasSize().y,O.dom.overlay=document.querySelector("canvas.drawingBuffer"),!O.dom.overlay){O.dom.overlay=document.createElement("canvas"),O.dom.overlay.className="drawingBuffer",a&&a.appendChild(O.dom.overlay);var 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g=a[0],h=a[1],i=a[2],j=a[3],k=a[4],l=a[5],m=a[6],n=a[7],o=a[8],p=a[9],q=a[10],r=a[11];return c[0]=g,c[1]=h,c[2]=i,c[3]=j,c[4]=k,c[5]=l,c[6]=m,c[7]=n,c[8]=o,c[9]=p,c[10]=q,c[11]=r,c[12]=g*d+k*e+o*f+a[12],c[13]=h*d+l*e+p*f+a[13],c[14]=i*d+m*e+q*f+a[14],c[15]=j*d+n*e+r*f+a[15],c},g.scale=function(a,b,c){var d=b[0],e=b[1],f=b[2];return c&&a!=c?(c[0]=a[0]*d,c[1]=a[1]*d,c[2]=a[2]*d,c[3]=a[3]*d,c[4]=a[4]*e,c[5]=a[5]*e,c[6]=a[6]*e,c[7]=a[7]*e,c[8]=a[8]*f,c[9]=a[9]*f,c[10]=a[10]*f,c[11]=a[11]*f,c[12]=a[12],c[13]=a[13],c[14]=a[14],c[15]=a[15],c):(a[0]*=d,a[1]*=d,a[2]*=d,a[3]*=d,a[4]*=e,a[5]*=e,a[6]*=e,a[7]*=e,a[8]*=f,a[9]*=f,a[10]*=f,a[11]*=f,a)},g.rotate=function(a,b,c,d){var e=c[0],f=c[1],g=c[2],h=Math.sqrt(e*e+f*f+g*g);if(!h)return null;1!=h&&(h=1/h,e*=h,f*=h,g*=h);var i=Math.sin(b),j=Math.cos(b),k=1-j,l=a[0],m=a[1],n=a[2],o=a[3],p=a[4],q=a[5],r=a[6],s=a[7],t=a[8],u=a[9],v=a[10],w=a[11],x=e*e*k+j,y=f*e*k+g*i,z=g*e*k-f*i,A=e*f*k-g*i,B=f*f*k+j,C=g*f*k+e*i,D=e*g*k+f*i,E=f*g*k-e*i,F=g*g*k+j;return d?a!=d&&(d[12]=a[12],d[13]=a[13],d[14]=a[14],d[15]=a[15]):d=a,d[0]=l*x+p*y+t*z,d[1]=m*x+q*y+u*z,d[2]=n*x+r*y+v*z,d[3]=o*x+s*y+w*z,d[4]=l*A+p*B+t*C,d[5]=m*A+q*B+u*C,d[6]=n*A+r*B+v*C,d[7]=o*A+s*B+w*C,d[8]=l*D+p*E+t*F,d[9]=m*D+q*E+u*F,d[10]=n*D+r*E+v*F,d[11]=o*D+s*E+w*F,d},g.rotateX=function(a,b,c){var d=Math.sin(b),e=Math.cos(b),f=a[4],g=a[5],h=a[6],i=a[7],j=a[8],k=a[9],l=a[10],m=a[11];return c?a!=c&&(c[0]=a[0],c[1]=a[1],c[2]=a[2],c[3]=a[3],c[12]=a[12],c[13]=a[13],c[14]=a[14],c[15]=a[15]):c=a,c[4]=f*e+j*d,c[5]=g*e+k*d,c[6]=h*e+l*d,c[7]=i*e+m*d,c[8]=f*-d+j*e,c[9]=g*-d+k*e,c[10]=h*-d+l*e,c[11]=i*-d+m*e,c},g.rotateY=function(a,b,c){var d=Math.sin(b),e=Math.cos(b),f=a[0],g=a[1],h=a[2],i=a[3],j=a[8],k=a[9],l=a[10],m=a[11];return c?a!=c&&(c[4]=a[4],c[5]=a[5],c[6]=a[6],c[7]=a[7],c[12]=a[12],c[13]=a[13],c[14]=a[14],c[15]=a[15]):c=a,c[0]=f*e+j*-d,c[1]=g*e+k*-d,c[2]=h*e+l*-d,c[3]=i*e+m*-d,c[8]=f*d+j*e,c[9]=g*d+k*e,c[10]=h*d+l*e,c[11]=i*d+m*e,c},g.rotateZ=function(a,b,c){var d=Math.sin(b),e=Math.cos(b),f=a[0],g=a[1],h=a[2],i=a[3],j=a[4],k=a[5],l=a[6],m=a[7];return c?a!=c&&(c[8]=a[8],c[9]=a[9],c[10]=a[10],c[11]=a[11],c[12]=a[12],c[13]=a[13],c[14]=a[14],c[15]=a[15]):c=a,c[0]=f*e+j*d,c[1]=g*e+k*d,c[2]=h*e+l*d,c[3]=i*e+m*d,c[4]=f*-d+j*e,c[5]=g*-d+k*e,c[6]=h*-d+l*e,c[7]=i*-d+m*e,c},g.frustum=function(a,b,c,d,e,f,h){h||(h=g.create());var i=b-a,j=d-c,k=f-e;return h[0]=2*e/i,h[1]=0,h[2]=0,h[3]=0,h[4]=0,h[5]=2*e/j,h[6]=0,h[7]=0,h[8]=(b+a)/i,h[9]=(d+c)/j,h[10]=-(f+e)/k,h[11]=-1,h[12]=0,h[13]=0,h[14]=-(f*e*2)/k,h[15]=0,h},g.perspective=function(a,b,c,d,e){var f=c*Math.tan(a*Math.PI/360),h=f*b;return g.frustum(-h,h,-f,f,c,d,e)},g.ortho=function(a,b,c,d,e,f,h){h||(h=g.create());var i=b-a,j=d-c,k=f-e;return h[0]=2/i,h[1]=0,h[2]=0,h[3]=0,h[4]=0,h[5]=2/j,h[6]=0,h[7]=0,h[8]=0,h[9]=0,h[10]=-2/k,h[11]=0,h[12]=-(a+b)/i,h[13]=-(d+c)/j,h[14]=-(f+e)/k,h[15]=1,h},g.lookAt=function(a,b,c,d){d||(d=g.create());var e=a[0],f=a[1],h=a[2],i=c[0],j=c[1],k=c[2],l=b[0],m=b[1],n=b[2];if(e==l&&f==m&&h==n)return g.identity(d);var o,p,q,r,s,t,u,v,w,x;return o=e-b[0],p=f-b[1],q=h-b[2],x=1/Math.sqrt(o*o+p*p+q*q),o*=x,p*=x,q*=x,r=j*q-k*p,s=k*o-i*q,t=i*p-j*o,x=Math.sqrt(r*r+s*s+t*t),x?(x=1/x,r*=x,s*=x,t*=x):(r=0,s=0,t=0),u=p*t-q*s,v=q*r-o*t,w=o*s-p*r,x=Math.sqrt(u*u+v*v+w*w),x?(x=1/x,u*=x,v*=x,w*=x):(u=0,v=0,w=0),d[0]=r,d[1]=u,d[2]=o,d[3]=0,d[4]=s,d[5]=v,d[6]=p,d[7]=0,d[8]=t,d[9]=w,d[10]=q,d[11]=0,d[12]=-(r*e+s*f+t*h),d[13]=-(u*e+v*f+w*h),d[14]=-(o*e+p*f+q*h),d[15]=1,d},g.str=function(a){return"["+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+",\n "+a[4]+", "+a[5]+", "+a[6]+", "+a[7]+",\n "+a[8]+", "+a[9]+", "+a[10]+", "+a[11]+",\n "+a[12]+", "+a[13]+", "+a[14]+", "+a[15]+"]"},quat4={},quat4.create=function(a){var b;return a?(b=new glMatrixArrayType(4),b[0]=a[0],b[1]=a[1],b[2]=a[2],b[3]=a[3]):b=glMatrixArrayType===Array?new glMatrixArrayType([0,0,0,0]):new glMatrixArrayType(4),b},quat4.set=function(a,b){return b[0]=a[0],b[1]=a[1],b[2]=a[2],b[3]=a[3],b},quat4.calculateW=function(a,b){var c=a[0],d=a[1],e=a[2];return b&&a!=b?(b[0]=c,b[1]=d,b[2]=e,b[3]=-Math.sqrt(Math.abs(1-c*c-d*d-e*e)),b):(a[3]=-Math.sqrt(Math.abs(1-c*c-d*d-e*e)),a)},quat4.inverse=function(a,b){return b&&a!=b?(b[0]=-a[0],b[1]=-a[1],b[2]=-a[2],b[3]=a[3],b):(a[0]*=-1,a[1]*=-1,a[2]*=-1,a)},quat4.length=function(a){var b=a[0],c=a[1],d=a[2],e=a[3];return Math.sqrt(b*b+c*c+d*d+e*e)},quat4.normalize=function(a,b){b||(b=a);var c=a[0],d=a[1],e=a[2],f=a[3],g=Math.sqrt(c*c+d*d+e*e+f*f);return 0==g?(b[0]=0,b[1]=0,b[2]=0,b[3]=0,b):(g=1/g,b[0]=c*g,b[1]=d*g,b[2]=e*g,b[3]=f*g,b)},quat4.multiply=function(a,b,c){c||(c=a);var d=a[0],e=a[1],f=a[2],g=a[3],h=b[0],i=b[1],j=b[2],k=b[3];return c[0]=d*k+g*h+e*j-f*i,c[1]=e*k+g*i+f*h-d*j,c[2]=f*k+g*j+d*i-e*h,c[3]=g*k-d*h-e*i-f*j,c},quat4.multiplyVec3=function(a,b,c){c||(c=b);var d=b[0],e=b[1],f=b[2],g=a[0],h=a[1],i=a[2],j=a[3],k=j*d+h*f-i*e,l=j*e+i*d-g*f,m=j*f+g*e-h*d,n=-g*d-h*e-i*f;return c[0]=k*j+n*-g+l*-i-m*-h,c[1]=l*j+n*-h+m*-g-k*-i,c[2]=m*j+n*-i+k*-h-l*-g,c},quat4.toMat3=function(a,b){b||(b=f.create());var c=a[0],d=a[1],e=a[2],g=a[3],h=c+c,i=d+d,j=e+e,k=c*h,l=c*i,m=c*j,n=d*i,o=d*j,p=e*j,q=g*h,r=g*i,s=g*j;return b[0]=1-(n+p),b[1]=l-s,b[2]=m+r,b[3]=l+s,b[4]=1-(k+p),b[5]=o-q,b[6]=m-r,b[7]=o+q,b[8]=1-(k+n),b},quat4.toMat4=function(a,b){b||(b=g.create());var c=a[0],d=a[1],e=a[2],f=a[3],h=c+c,i=d+d,j=e+e,k=c*h,l=c*i,m=c*j,n=d*i,o=d*j,p=e*j,q=f*h,r=f*i,s=f*j;return b[0]=1-(n+p),b[1]=l-s,b[2]=m+r,b[3]=0,b[4]=l+s,b[5]=1-(k+p),b[6]=o-q,b[7]=0,b[8]=m-r,b[9]=o+q,b[10]=1-(k+n),b[11]=0,b[12]=0,b[13]=0,b[14]=0,b[15]=1,b},quat4.slerp=function(a,b,c,d){d||(d=a);var e=a[0]*b[0]+a[1]*b[1]+a[2]*b[2]+a[3]*b[3];if(Math.abs(e)>=1)return d!=a&&(d[0]=a[0],d[1]=a[1],d[2]=a[2],d[3]=a[3]),d;var f=Math.acos(e),g=Math.sqrt(1-e*e);if(Math.abs(g)<.001)return d[0]=.5*a[0]+.5*b[0],d[1]=.5*a[1]+.5*b[1],d[2]=.5*a[2]+.5*b[2],d[3]=.5*a[3]+.5*b[3],d;var h=Math.sin((1-c)*f)/g,i=Math.sin(c*f)/g;return d[0]=a[0]*h+b[0]*i,d[1]=a[1]*h+b[1]*i,d[2]=a[2]*h+b[2]*i,d[3]=a[3]*h+b[3]*i,d},quat4.str=function(a){return"["+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+"]"},d("glMatrix",["typedefs"],function(a){return function(){var b;return b||a.glMatrix}}(this)),g.xVec4=function(a,b,c){c||(c=b);var d=b[0],e=b[1],f=b[2],g=b[3];return c[0]=a[0]*d+a[1]*e+a[2]*f+a[3]*g,c[1]=a[4]*d+a[5]*e+a[6]*f+a[7]*g,c[2]=a[8]*d+a[9]*e+a[10]*f+a[11]*g,c[3]=a[12]*d+a[13]*e+a[14]*f+a[15]*g,c},f.scale=function(a,b,c){return c&&a!=c?(c=f.create(),c[0]=a[0]*b,c[1]=a[1]*b,c[2]=a[2]*b,c[3]=a[3]*b,c[4]=a[4]*b,c[5]=a[5]*b,c[6]=a[6]*b,c[7]=a[7]*b,c[8]=a[8]*b,c):(a[0]*=b,a[1]*=b,a[2]*=b,a[3]*=b,a[4]*=b,a[5]*=b,a[6]*=b,a[7]*=b,a[8]*=b,a)},f.inverse=function(a,b){b||(b=a);var c=a[0],d=a[1],e=a[2],f=a[3],g=a[4],h=a[5],i=a[6],j=a[7],k=a[8],l=1/(c*g*k+d*h*i+e*f*j-e*g*i-d*f*k-c*h*j);return b[0]=(g*k-h*j)*l,b[1]=(e*j-d*k)*l,b[2]=(d*h-e*g)*l,b[3]=(h*i-f*k)*l,b[4]=(c*k-e*i)*l,b[5]=(e*f-c*h)*l,b[6]=(f*j-g*i)*l,b[7]=(d*i-c*j)*l,b[8]=(c*g-d*f)*l,b},f.multiply=function(a,b,c){c||(c=a);var d=a[0],e=a[1],f=a[2],g=a[3],h=a[4],i=a[5],j=a[6],k=a[7],l=a[8],m=b[0],n=b[1],o=b[2],p=b[3],q=b[4],r=b[5],s=b[6],t=b[7],u=b[8];return c[0]=d*m+e*p+f*s,c[1]=d*n+e*q+f*t,c[2]=d*o+e*r+f*u,c[3]=g*m+h*p+i*s,c[4]=g*n+h*q+i*t,c[5]=g*o+h*r+i*u,c[6]=j*m+k*p+l*s,c[7]=j*n+k*q+l*t,c[8]=j*o+k*r+l*u,c},f.xVec3=function(a,b,c){c||(c=b);var d=b[0],e=b[1],f=b[2];return c[0]=a[0]*d+a[1]*e+a[2]*f,c[1]=a[3]*d+a[4]*e+a[5]*f,c[2]=a[6]*d+a[7]*e+a[8]*f,c};var h={};h.create=function(a){var b;return a?(b=new glMatrixArrayType(4),b[0]=a[0],b[1]=a[1],b[2]=a[2],b[3]=a[3]):b=glMatrixArrayType===Array?new glMatrixArrayType([0,0,0,0]):new glMatrixArrayType(4),b},h.project=function(a,b){return b||(b=a),b[0]=a[0]/a[3],b[1]=a[1]/a[3],b[2]=a[2]/a[3],b},h.scale=function(a,b,c){return c&&a!=c?(c[0]=a[0]*b,c[1]=a[1]*b,c[2]=a[2]*b,c[3]=a[3]*b,c):(a[0]*=b,a[1]*=b,a[2]*=b,a[4]*=b,a)},h.xMat4=function(a,b,c){c||(c=a);var d=a[0],e=a[1],f=a[2],g=a[3];return c[0]=b[0]*d+b[4]*e+b[8]*f+b[12]*g,c[1]=b[1]*d+b[5]*e+b[9]*f+b[13]*g,c[2]=b[2]*d+b[6]*e+b[10]*f+b[14]*g,c[3]=b[3]*d+b[7]*e+b[11]*f+b[15]*g,c};var i={};i.create=function(a){var b;return a?(b=new glMatrixArrayType(4),b[0]=a[0],b[1]=a[1],b[2]=a[2],b[3]=a[3]):b=glMatrixArrayType===Array?new glMatrixArrayType([0,0,0,0]):new glMatrixArrayType(4),b},i.xVec2=function(a,b,c){c||(c=b);var d=b[0],e=b[1];return c[0]=a[0]*d+a[1]*e,c[1]=a[2]*d+a[3]*e,c},i.scale=function(a,b,c){return c&&a!=c?(c[0]=a[0]*b,c[1]=a[1]*b,c[2]=a[2]*b,c[3]=a[3]*b,c):(a[0]*=b,a[1]*=b,a[2]*=b,a[3]*=b,a)},i.determinant=function(a){return a[0]*a[3]-a[1]*a[2]},i.inverse=function(a){var b=1/i.determinant(a),c=a[3]*b,d=-a[1]*b,e=-a[2]*b,f=a[0];return a[0]=c,a[1]=d,a[2]=e,a[3]=f,a};var j={};j.create=function(a){var b;return a?(b=new glMatrixArrayType(2),b[0]=a[0],b[1]=a[1]):b=glMatrixArrayType===Array?new glMatrixArrayType([0,0]):new glMatrixArrayType(2),b},j.subtract=function(a,b,c){return c&&a!=c?(c[0]=a[0]-b[0],c[1]=a[1]-b[1],c):(a[0]-=b[0],a[1]-=b[1],a)},j.add=function(a,b,c){return c&&a!=c?(c[0]=a[0]+b[0],c[1]=a[1]+b[1],c):(a[0]+=b[0],a[1]+=b[1],a)},j.scale=function(a,b,c){return c&&a!=c?(c[0]=a[0]*b,c[1]=a[1]*b,c):(a[0]*=b,a[1]*=b,a)},j.normalize=function(a,b){b||(b=a);var c=a[0],d=a[1],e=Math.sqrt(c*c+d*d);return e?1==e?(b[0]=c,b[1]=d,b):(e=1/e,b[0]=c*e,b[1]=d*e,b):(b[0]=0,b[1]=0,b)},j.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]},j.multiply=function(a,b,c){return c||(c=a),c[0]=a[0]*b[0],c[1]=a[1]*b[1],c},j.unproject=function(a){return e.create([a[0],a[1],1])},j.length=function(a){return Math.sqrt(a[0]*a[0]+a[1]*a[1])},j.perspectiveProject=function(a){var b=j.create(a);return j.scale(b,1/a[2])},e.project=function(a){return j.scale(j.create(a),1/a[2])};var k={};k.scale=function(a,b,c){return c&&a!=c?(c[0]=a[0]*b,c[1]=a[1]*b,c[2]=a[2]*b,c[3]=a[3]*b,c[4]=a[4]*b,c[5]=a[5]*b,c):(a[0]*=b,a[1]*=b,a[2]*=b,a[3]*=b,a[4]*=b,a[5]*=b,a)},k.subtract=function(a,b,c){return c&&a!=c?(c[0]=a[0]-b[0],c[1]=a[1]-b[1],c[2]=a[2]-b[2],c[3]=a[3]-b[3],c[4]=a[4]-b[4],c[5]=a[5]-b[5],c):(a[0]-=b[0],a[1]-=b[1],a[2]-=b[2],a[3]-=b[3],a[4]-=b[4],a[5]-=b[5],a)},k.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]+a[3]*b[3]+a[4]*b[4]+a[5]*b[5]};var l={};return l.xVec6=function(a,b,c){c||(c=b);var d=b[0],e=b[1],f=b[2],g=b[3],h=b[4],i=b[5];return c[0]=a[0]*d+a[1]*e+a[2]*f+a[3]*g+a[4]*h+a[5]*i,c[1]=a[6]*d+a[7]*e+a[8]*f+a[9]*g+a[10]*h+a[11]*i,c[2]=a[12]*d+a[13]*e+a[14]*f+a[15]*g+a[16]*h+a[17]*i,c[3]=a[18]*d+a[19]*e+a[20]*f+a[21]*g+a[22]*h+a[23]*i,c[4]=a[24]*d+a[25]*e+a[26]*f+a[27]*g+a[28]*h+a[29]*i,c[5]=a[30]*d+a[31]*e+a[32]*f+a[33]*g+a[34]*h+a[35]*i,c},f.xVec3=function(a,b,c){c||(c=b);var d=b[0],e=b[1],f=b[2];return c[0]=a[0]*d+a[1]*e+a[2]*f,c[1]=a[3]*d+a[4]*e+a[5]*f,c[2]=a[6]*d+a[7]*e+a[8]*f,c},d("glMatrixAddon",["glMatrix"],function(a){return function(){var b;return b||a.glMatrixAddon}}(this)),d("array_helper",[],function(){"use strict";return{init:function(a,b){for(var c=a.length;c--;)a[c]=b},shuffle:function(a){var b,c,d=a.length-1;for(d;d>=0;d--)b=Math.floor(Math.random()*d),c=a[d],a[d]=a[b],a[b]=c;return a},toPointList:function(a){var b,c,d=[],e=[];for(b=0;b=b&&e.push(a[d]);return e},maxIndex:function(a){var b,c=0;for(b=0;ba[c]&&(c=b);return c},max:function(a){var b,c=0;for(b=0;bc&&(c=a[b]);return c},sum:function(a){for(var b=a.length,c=0;b--;)c+=a[b];return c}}}),d("cv_utils",["cluster","glMatrixAddon","array_helper"],function(a,b,c){"use strict";var d={};return d.imageRef=function(a,b){var c={x:a,y:b,toVec2:function(){return j.create([this.x,this.y])},toVec3:function(){return e.create([this.x,this.y,1])},round:function(){return 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c,d,e,f,g,h,i,j=a.data,k=b.data,l=a.size.y,m=a.size.x;for(c=1;l-1>c;c++)for(d=1;m-1>d;d++)f=c-1,g=c+1,h=d-1,i=d+1,e=j[f*m+h]+j[f*m+i]+j[c*m+d]+j[g*m+h]+j[g*m+i],k[c*m+d]=e>0?1:0},d.erode=function(a,b){var c,d,e,f,g,h,i,j=a.data,k=b.data,l=a.size.y,m=a.size.x;for(c=1;l-1>c;c++)for(d=1;m-1>d;d++)f=c-1,g=c+1,h=d-1,i=d+1,e=j[f*m+h]+j[f*m+i]+j[c*m+d]+j[g*m+h]+j[g*m+i],k[c*m+d]=5===e?1:0},d.subtract=function(a,b,c){c||(c=a);for(var d=a.data.length,e=a.data,f=b.data,g=c.data;d--;)g[d]=e[d]-f[d]},d.bitwiseOr=function(a,b,c){c||(c=a);for(var d=a.data.length,e=a.data,f=b.data,g=c.data;d--;)g[d]=e[d]||f[d]},d.countNonZero=function(a){for(var b=a.data.length,c=a.data,d=0;b--;)d+=c[b];return d},d.topGeneric=function(a,b,c){var d,e,f,g,h=0,i=0,j=[];for(d=0;b>d;d++)j[d]={score:0,item:null};for(d=0;di)for(f=j[h],f.score=e,f.item=a[d],i=Number.MAX_VALUE,g=0;b>g;g++)j[g].scoref;){for(d=0;h>d;d++)c[i]=Math.floor((.299*a[4*e+0]+.587*a[4*e+1]+.114*a[4*e+2]+(.299*a[4*(e+1)+0]+.587*a[4*(e+1)+1]+.114*a[4*(e+1)+2])+(.299*a[4*f+0]+.587*a[4*f+1]+.114*a[4*f+2])+(.299*a[4*(f+1)+0]+.587*a[4*(f+1)+1]+.114*a[4*(f+1)+2]))/4),i++,e+=2,f+=2;e+=j,f+=j}},d.computeGray=function(a,b,c){var d,e=a.length/4|0,f=c&&c.singleChannel===!0;if(f)for(d=0;e>d;d++)b[d]=a[4*d+0];else for(d=0;e>d;d++)b[d]=Math.floor(.299*a[4*d+0]+.587*a[4*d+1]+.114*a[4*d+2])},d.loadImageArray=function(a,b,c){c||(c=document.createElement("canvas"));var e=new Image;e.callback=b,e.onload=function(){c.width=this.width,c.height=this.height;var a=c.getContext("2d");a.drawImage(this,0,0);var b=new Uint8Array(this.width*this.height);a.drawImage(this,0,0);var 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d,e=this._computeDivisors(b.x),f=this._computeDivisors(b.y),g=Math.max(b.x,b.y),h=this._computeIntersection(e,f),i=[8,10,15,20,32,60,80],j={"x-small":5,small:4,medium:3,large:2,"x-large":1},k=j[a]||j.medium,l=i[k],m=Math.floor(g/l);return d=c(h),d||(d=c(this._computeDivisors(g)),d||(d=c(this._computeDivisors(m*l)))),d},d._parseCSSDimensionValues=function(a){var b={value:parseFloat(a),unit:(a.indexOf("%")===a.length-1,"%")};return b},d._dimensionsConverters={top:function(a,b){return"%"===a.unit?Math.floor(b.height*(a.value/100)):void 0},right:function(a,b){return"%"===a.unit?Math.floor(b.width-b.width*(a.value/100)):void 0},bottom:function(a,b){return"%"===a.unit?Math.floor(b.height-b.height*(a.value/100)):void 0},left:function(a,b){return"%"===a.unit?Math.floor(b.width*(a.value/100)):void 0}},d.computeImageArea=function(a,b,c){var e={width:a,height:b},f=Object.keys(c).reduce(function(a,b){var f=c[b],g=d._parseCSSDimensionValues(f),h=d._dimensionsConverters[b](g,e);return a[b]=h,a},{});return{sx:f.left,sy:f.top,sw:f.right-f.left,sh:f.bottom-f.top}},d}),d("image_wrapper",["subImage","cv_utils","array_helper"],function(a,b,c){"use strict";function d(a,b,d,e){b?this.data=b:d?(this.data=new d(a.x*a.y),d===Array&&e&&c.init(this.data,0)):(this.data=new Uint8Array(a.x*a.y),Uint8Array===Array&&e&&c.init(this.data,0)),this.size=a}return d.prototype.inImageWithBorder=function(a,b){return a.x>=b&&a.y>=b&&a.x=0&&u>=0&&n-1>v&&o-1>w){for(g=s,h=0;m>h;++h,j.add(g,y))for(k=0;l>k;++k,j.add(g,p))b.set(k,h,x(a,g[0],g[1]));return 0}var z=n-1,A=o-1,B=0;for(g=s,h=0;m>h;++h,j.add(g,y))for(k=0;l>k;++k,j.add(g,p))0<=g[0]&&0<=g[1]&&g[0]c;c++)for(d=0;e>d;d++)a.data[d*f+c]=this.data[(b.y+d)*this.size.x+b.x+c]},d.prototype.copyTo=function(a){for(var b=this.data.length,c=this.data,d=a.data;b--;)d[b]=c[b]},d.prototype.get=function(a,b){return this.data[b*this.size.x+a]},d.prototype.getSafe=function(a,b){var c;if(!this.indexMapping){for(this.indexMapping={x:[],y:[]},c=0;ca;a++)d[a]=d[(c-1)*b+a]=0;for(a=1;c-1>a;a++)d[a*b]=d[a*b+(b-1)]=0},d.prototype.invert=function(){for(var a=this.data,b=a.length;b--;)a[b]=a[b]?0:1},d.prototype.convolve=function(a){var b,c,d,e,f=a.length/2|0,g=0;for(c=0;c=e;e++)for(d=-f;f>=d;d++)g+=a[e+f][d+f]*this.getSafe(b+d,c+e);this.data[c*this.size.x+b]=g}},d.prototype.moments=function(a){var b,c,d,e,f,g,h,i,k,l,m,n,o=this.data,p=this.size.y,q=this.size.x,r=[],s=[],t=Math.PI,u=t/4;if(0>=a)return s;for(f=0;a>f;f++)r[f]={m00:0,m01:0,m10:0,m11:0,m02:0,m20:0,theta:0,rad:0};for(c=0;p>c;c++)for(e=c*c,b=0;q>b;b++)d=o[c*q+b],d>0&&(g=r[d-1],g.m00+=1,g.m01+=c,g.m10+=b,g.m11+=b*c,g.m02+=e,g.m20+=b*b);for(f=0;a>f;f++)g=r[f],isNaN(g.m00)||0===g.m00||(l=g.m10/g.m00,m=g.m01/g.m00,h=g.m11/g.m00-l*m,i=g.m02/g.m00-m*m,k=g.m20/g.m00-l*l,n=(i-k)/(2*h),n=.5*Math.atan(n)+(h>=0?u:-u)+t,g.theta=(180*n/t+90)%180-90,g.theta<0&&(g.theta+=180),g.rad=n>t?n-t:n,g.vec=j.create([Math.cos(n),Math.sin(n)]),s.push(g));return s},d.prototype.show=function(a,b){var c,d,e,f,g,h,i;for(b||(b=1),c=a.getContext("2d"),a.width=this.size.x,a.height=this.size.y,d=c.getImageData(0,0,a.width,a.height),e=d.data,f=0,i=0;ic||c>360)&&(c=360);for(var e=[0,1,1],f=[0,0,0],g=[255,255,255],h=[0,0,0],i=[],j=a.getContext("2d"),k=j.getImageData(d.x,d.y,this.size.x,this.size.y),l=k.data,m=this.data.length;m--;)e[0]=this.data[m]*c,i=e[0]<=0?g:e[0]>=360?h:b.hsv2rgb(e,f),l[4*m+0]=i[0],l[4*m+1]=i[1],l[4*m+2]=i[2],l[4*m+3]=255;j.putImageData(k,d.x,d.y)},d}),d("tracer",[],function(){"use strict";var a={searchDirections:[[0,1],[1,1],[1,0],[1,-1],[0,-1],[-1,-1],[-1,0],[-1,1]],create:function(a,b){function c(a,b,c,d){var e,k,l;for(e=0;7>e;e++){if(k=a.cy+i[a.dir][0],l=a.cx+i[a.dir][1],f=k*j+l,g[f]===b&&(0===h[f]||h[f]===c))return h[f]=c,a.cy=k,a.cx=l,!0;0===h[f]&&(h[f]=d),a.dir=(a.dir+1)%8}return!1}function d(a,b,c){return{dir:c,x:a,y:b,next:null,prev:null}}function e(a,b,e,f,g){var h,i,j,k=null,l={cx:b,cy:a,dir:0};if(c(l,f,e,g)){k=d(b,a,l.dir),h=k,j=l.dir,i=d(l.cx,l.cy,0),i.prev=h,h.next=i,i.next=null,h=i;do l.dir=(l.dir+6)%8,c(l,f,e,g),j!=l.dir?(h.dir=l.dir,i=d(l.cx,l.cy,0),i.prev=h,h.next=i,i.next=null,h=i):(h.dir=j,h.x=l.cx,h.y=l.cy),j=l.dir;while(l.cx!=b||l.cy!=a);k.prev=h.prev,h.prev.next=k}return k}var f,g=a.data,h=b.data,i=this.searchDirections,j=a.size.x;return{trace:function(a,b,d,e){return c(a,b,d,e)},contourTracing:function(a,b,c,d,f){return e(a,b,c,d,f)}}}};return a}),d("rasterizer",["tracer"],function(a){"use strict";var b={createContour2D:function(){return{dir:null,index:null,firstVertex:null,insideContours:null,nextpeer:null,prevpeer:null}},CONTOUR_DIR:{CW_DIR:0,CCW_DIR:1,UNKNOWN_DIR:2},DIR:{OUTSIDE_EDGE:-32767,INSIDE_EDGE:-32766},create:function(c,d){var e=c.data,f=d.data,g=c.size.x,h=c.size.y,i=a.create(c,d);return{rasterize:function(a){var c,d,j,k,l,m,n,o,p,q,r,s,t=[],u=0;for(s=0;400>s;s++)t[s]=0;for(t[0]=e[0],p=null,m=1;h-1>m;m++)for(k=0,d=t[0],l=1;g-1>l;l++)if(r=m*g+l,0===f[r])if(c=e[r],c!==d){if(0===k)j=u+1,t[j]=c,d=c,n=i.contourTracing(m,l,j,c,b.DIR.OUTSIDE_EDGE),null!==n&&(u++,k=j,o=b.createContour2D(),o.dir=b.CONTOUR_DIR.CW_DIR,o.index=k,o.firstVertex=n,o.nextpeer=p,o.insideContours=null,null!==p&&(p.prevpeer=o),p=o);else if(n=i.contourTracing(m,l,b.DIR.INSIDE_EDGE,c,k),null!==n){for(o=b.createContour2D(),o.firstVertex=n,o.insideContours=null,0===a?o.dir=b.CONTOUR_DIR.CCW_DIR:o.dir=b.CONTOUR_DIR.CW_DIR,o.index=a,q=p;null!==q&&q.index!==k;)q=q.nextpeer;null!==q&&(o.nextpeer=q.insideContours,null!==q.insideContours&&(q.insideContours.prevpeer=o),q.insideContours=o)}}else f[r]=k;else f[r]===b.DIR.OUTSIDE_EDGE||f[r]===b.DIR.INSIDE_EDGE?(k=0,d=f[r]===b.DIR.INSIDE_EDGE?e[r]:t[0]):(k=f[r],d=t[k]);for(q=p;null!==q;)q.index=a,q=q.nextpeer;return{cc:p,count:u}},debug:{drawContour:function(a,c){var d,e,f,g=a.getContext("2d"),h=c;for(g.strokeStyle="red",g.fillStyle="red",g.lineWidth=1,d=null!==h?h.insideContours:null;null!==h;){switch(null!==d?(e=d,d=d.nextpeer):(e=h,h=h.nextpeer,d=null!==h?h.insideContours:null),e.dir){case b.CONTOUR_DIR.CW_DIR:g.strokeStyle="red";break;case b.CONTOUR_DIR.CCW_DIR:g.strokeStyle="blue";break;case b.CONTOUR_DIR.UNKNOWN_DIR:g.strokeStyle="green"}f=e.firstVertex,g.beginPath(),g.moveTo(f.x,f.y);do f=f.next,g.lineTo(f.x,f.y);while(f!==e.firstVertex);g.stroke()}}}}}};return b}),d("skeletonizer",[],function(){"use strict";function a(stdlib, foreign, buffer) {"use asm";var images=new stdlib.Uint8Array(buffer),size=foreign.size|0,imul=stdlib.Math.imul;function erode(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for ( v=1; (v|0)<((size - 1)|0); v=(v+1)|0) {offset=(offset+size)|0;for ( u=1; (u|0)<((size - 1)|0); u=(u+1)|0) {yStart1=(offset - size)|0;yStart2=(offset+size)|0;xStart1=(u - 1)|0;xStart2=(u+1)|0;sum=((images[(inImagePtr+yStart1+xStart1)|0]|0)+(images[(inImagePtr+yStart1+xStart2)|0]|0)+(images[(inImagePtr+offset+u)|0]|0)+(images[(inImagePtr+yStart2+xStart1)|0]|0)+(images[(inImagePtr+yStart2+xStart2)|0]|0))|0;if ((sum|0) == (5|0)) {images[(outImagePtr+offset+u)|0]=1;} else {images[(outImagePtr+offset+u)|0]=0;}}}return;}function subtract(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;images[(outImagePtr+length)|0]=((images[(aImagePtr+length)|0]|0) - (images[(bImagePtr+length)|0]|0))|0;}}function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;images[(outImagePtr+length)|0]=((images[(aImagePtr+length)|0]|0)|(images[(bImagePtr+length)|0]|0))|0;}}function countNonZero(imagePtr) {imagePtr=imagePtr|0;var sum=0,length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;sum=((sum|0)+(images[(imagePtr+length)|0]|0))|0;}return (sum|0);}function init(imagePtr, value) {imagePtr=imagePtr|0;value=value|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;images[(imagePtr+length)|0]=value;}}function dilate(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for ( v=1; (v|0)<((size - 1)|0); v=(v+1)|0) {offset=(offset+size)|0;for ( u=1; (u|0)<((size - 1)|0); u=(u+1)|0) {yStart1=(offset - size)|0;yStart2=(offset+size)|0;xStart1=(u - 1)|0;xStart2=(u+1)|0;sum=((images[(inImagePtr+yStart1+xStart1)|0]|0)+(images[(inImagePtr+yStart1+xStart2)|0]|0)+(images[(inImagePtr+offset+u)|0]|0)+(images[(inImagePtr+yStart2+xStart1)|0]|0)+(images[(inImagePtr+yStart2+xStart2)|0]|0))|0;if ((sum|0)>(0|0)) {images[(outImagePtr+offset+u)|0]=1;} else {images[(outImagePtr+offset+u)|0]=0;}}}return;}function memcpy(srcImagePtr, dstImagePtr) {srcImagePtr=srcImagePtr|0;dstImagePtr=dstImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;images[(dstImagePtr+length)|0]=(images[(srcImagePtr+length)|0]|0);}}function zeroBorder(imagePtr) {imagePtr=imagePtr|0;var x=0,y=0;for ( x=0; (x|0)<((size - 1)|0); x=(x+1)|0) {images[(imagePtr+x)|0]=0;images[(imagePtr+y)|0]=0;y=((y+size) - 1)|0;images[(imagePtr+y)|0]=0;y=(y+1)|0;}for ( x=0; (x|0)<(size|0); x=(x+1)|0) {images[(imagePtr+y)|0]=0;y=(y+1)|0;}}function skeletonize() {var subImagePtr=0,erodedImagePtr=0,tempImagePtr=0,skelImagePtr=0,sum=0,done=0;erodedImagePtr=imul(size, size)|0;tempImagePtr=(erodedImagePtr+erodedImagePtr)|0;skelImagePtr=(tempImagePtr+erodedImagePtr)|0;init(skelImagePtr, 0);zeroBorder(subImagePtr);do {erode(subImagePtr, erodedImagePtr);dilate(erodedImagePtr, tempImagePtr);subtract(subImagePtr, tempImagePtr, tempImagePtr);bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);memcpy(erodedImagePtr, subImagePtr);sum=countNonZero(subImagePtr)|0;done=((sum|0) == 0|0);} while(!done);}return {skeletonize : skeletonize};} +return a}),d("image_debug",[],function(){"use strict";return{drawRect:function(a,b,c,d){c.strokeStyle=d.color,c.fillStyle=d.color,c.lineWidth=1,c.beginPath(),c.strokeRect(a.x,a.y,b.x,b.y)},drawPath:function(a,b,c,d){c.strokeStyle=d.color,c.fillStyle=d.color,c.lineWidth=d.lineWidth,c.beginPath(),c.moveTo(a[0][b.x],a[0][b.y]);for(var e=1;eb&&(b+=180),b=(180-b)*Math.PI/180,f=i.create([Math.cos(b),-Math.sin(b),Math.sin(b),Math.cos(b)]),c=0;cd;d++)i.xVec2(f,e.box[d]);u.boxFromPatches.showTransformed&&g.drawPath(e.box,{x:0,y:1},G.ctx.binary,{color:"#99ff00",lineWidth:2})}for(c=0;cd;d++)e.box[d][0]n&&(n=e.box[d][0]),e.box[d][1]o&&(o=e.box[d][1]);for(h=[[l,m],[n,m],[n,o],[l,o]],u.boxFromPatches.showTransformedBox&&g.drawPath(h,{x:0,y:1},G.ctx.binary,{color:"#ff0000",lineWidth:2}),k=u.halfSample?2:1,f=i.inverse(f),d=0;4>d;d++)i.xVec2(f,h[d]);for(u.boxFromPatches.showBB&&g.drawPath(h,{x:0,y:1},G.ctx.binary,{color:"#ff0000",lineWidth:2}),d=0;4>d;d++)j.scale(h[d],k);return h}function m(){b.otsuThreshold(v,C),C.zeroBorder(),u.showCanvas&&C.show(G.dom.binary,255)}function n(){var a,b,d,e,h,i,j,k,l=[];for(a=0;ab;b++)d.push(0);for(c=A.data.length;c--;)A.data[c]>0&&d[A.data[c]-1]++;return d=d.map(function(a,b){return{val:a,label:b+1}}),d.sort(function(a,b){return b.val-a.val}),e=d.filter(function(a){return a.val>=5})}function p(a,c){var d,e,f,h,i,j=[],k=[],m=[0,1,1],n=[0,0,0];for(d=0;d=2){for(e=0;em&&k.push(a[e]);if(k.length>=2){for(i=k.length,g=q(k),f=0,e=0;e1&&g.length>=k.length/4*3&&g.length>a.length/4&&(f/=g.length,h={index:b[1]*H.x+b[0],pos:{x:c,y:d},box:[j.create([c,d]),j.create([c+x.size.x,d]),j.create([c+x.size.x,d+x.size.y]),j.create([c,d+x.size.y])],moments:g,rad:f,vec:j.create([Math.cos(f),Math.sin(f)])},l.push(h))}}return l}function t(a){function c(){var a;for(a=0;al&&e(h))):A.data[h]=Number.MAX_VALUE}var h,i,k=0,l=.95,m=0,n=[0,1,1],o=[0,0,0];for(f.init(z.data,0),f.init(A.data,0),f.init(B.data,null),h=0;h0&&A.data[h]<=k&&(i=B.data[h],n[0]=A.data[h]/(k+1)*360,b.hsv2rgb(n,o),g.drawRect(i.pos,x.size,G.ctx.binary,{color:"rgb("+o.join(",")+")",lineWidth:2}));return k}var u,v,w,x,y,z,A,B,C,D,E,F,G={ctx:{binary:null},dom:{binary:null}},H={x:0,y:0},I=this;return{init:function(a,b){u=b,E=a,h(),k()},locate:function(){var a,c,d;if(u.halfSample&&b.halfSample(E,v),m(),a=n(),a.lengthe?null:(c=o(e),0===c.length?null:d=p(c,e))},checkImageConstraints:function(a,c){var d,e,f,g=a.getWidth(),h=a.getHeight(),i=c.halfSample?.5:1;if(a.getConfig().area&&(f=b.computeImageArea(g,h,a.getConfig().area),a.setTopRight({x:f.sx,y:f.sy}),a.setCanvasSize({x:g,y:h}),g=f.sw,h=f.sh),e={x:Math.floor(g*i),y:Math.floor(h*i)},d=b.calculatePatchSize(c.patchSize,e),console.log("Patch-Size: "+JSON.stringify(d)),a.setWidth(Math.floor(Math.floor(e.x/d.x)*(1/i)*d.x)),a.setHeight(Math.floor(Math.floor(e.y/d.y)*(1/i)*d.y)),a.getWidth()%d.x===0&&a.getHeight()%d.y===0)return!0;throw new Error("Image dimensions do not comply with the current settings: Width ("+g+" )and height ("+h+") must a multiple of "+d.x)}}}),d("bresenham",["cv_utils","image_wrapper"],function(a,b){"use strict";var c={},d={DIR:{UP:1,DOWN:-1}};return c.getBarcodeLine=function(a,b,c){function d(a,b){l=s[b*t+a],u+=l,v=v>l?l:v,w=l>w?l:w,r.push(l)}var e,f,g,h,i,j,k,l,m=0|b.x,n=0|b.y,o=0|c.x,p=0|c.y,q=Math.abs(p-n)>Math.abs(o-m),r=[],s=a.data,t=a.size.x,u=0,v=255,w=0;for(q&&(j=m,m=n,n=j,j=o,o=p,p=j),m>o&&(j=m,m=o,o=j,j=n,n=p,p=j),e=o-m,f=Math.abs(p-n),g=e/2|0,i=n,h=p>n?1:-1,k=m;o>k;k++)q?d(i,k):d(k,i),g-=f,0>g&&(i+=h,g+=e);return{line:r,min:v,max:w}},c.toOtsuBinaryLine=function(c){var d=c.line,e=new b({x:d.length-1,y:1},d),f=a.determineOtsuThreshold(e,5);return d=a.sharpenLine(d),a.thresholdImage(e,f),{line:d,threshold:f}},c.toBinaryLine=function(a){var b,c,e,f,g,h,i=a.min,j=a.max,k=a.line,l=i+(j-i)/2,m=[],n=(j-i)/12,o=-n;for(e=k[0]>l?d.DIR.UP:d.DIR.DOWN,m.push({pos:0,val:k[0]}),g=0;gb+c&&k[g+1]<1.5*l?d.DIR.DOWN:b+c>n&&k[g+1]>.5*l?d.DIR.UP:e,e!==f&&(m.push({pos:g,val:k[g]}),e=f);for(m.push({pos:k.length,val:k[k.length-1]}),h=m[0].pos;hl?0:1;for(g=1;gm[g].val?m[g].val+(m[g+1].val-m[g].val)/3*2|0:m[g+1].val+(m[g].val-m[g+1].val)/3|0,h=m[g].pos;hn?0:1;return{line:k,threshold:n}},c.debug={printFrequency:function(a,b){var c,d=b.getContext("2d");for(b.width=a.length,b.height=256,d.beginPath(),d.strokeStyle="blue",c=0;cg)return Number.MAX_VALUE;d+=e}return d/f},a.prototype._nextSet=function(a,b){var c;for(b=b||0,c=b;c1)for(c=0;cd?(j.start=c-g,j.end=c,j.counter=e,j):null;i++,e[i]=1,h=!h}}else for(e.push(0),c=g;ca?0:a,d=a;b>d;d++)if(this._row[d]!==c)return!1;return!0},a.prototype._fillCounters=function(a,b,c){var d,e=this,f=0,g=[];for(c="undefined"!=typeof c?c:!0,a="undefined"!=typeof a?a:e._nextUnset(e._row),b=b||e._row.length,g[f]=0,d=a;b>d;d++)e._row[d]^c?g[f]++:(f++,g[f]=1,c=!c);return g},Object.defineProperty(a.prototype,"FORMAT",{value:"unknown",writeable:!1}),a.DIRECTION={FORWARD:1,REVERSE:-1},a.Exception={StartNotFoundException:"Start-Info was not found!",CodeNotFoundException:"Code could not be found!",PatternNotFoundException:"Pattern could not be found!"},a.CONFIG_KEYS={},a}),d("code_128_reader",["./barcode_reader"],function(a){"use strict";function b(){a.call(this)}var c={CODE_SHIFT:{value:98},CODE_C:{value:99},CODE_B:{value:100},CODE_A:{value:101},START_CODE_A:{value:103},START_CODE_B:{value:104},START_CODE_C:{value:105},STOP_CODE:{value:106},MODULO:{value:11},CODE_PATTERN:{value:[[2,1,2,2,2,2],[2,2,2,1,2,2],[2,2,2,2,2,1],[1,2,1,2,2,3],[1,2,1,3,2,2],[1,3,1,2,2,2],[1,2,2,2,1,3],[1,2,2,3,1,2],[1,3,2,2,1,2],[2,2,1,2,1,3],[2,2,1,3,1,2],[2,3,1,2,1,2],[1,1,2,2,3,2],[1,2,2,1,3,2],[1,2,2,2,3,1],[1,1,3,2,2,2],[1,2,3,1,2,2],[1,2,3,2,2,1],[2,2,3,2,1,1],[2,2,1,1,3,2],[2,2,1,2,3,1],[2,1,3,2,1,2],[2,2,3,1,1,2],[3,1,2,1,3,1],[3,1,1,2,2,2],[3,2,1,1,2,2],[3,2,1,2,2,1],[3,1,2,2,1,2],[3,2,2,1,1,2],[3,2,2,2,1,1],[2,1,2,1,2,3],[2,1,2,3,2,1],[2,3,2,1,2,1],[1,1,1,3,2,3],[1,3,1,1,2,3],[1,3,1,3,2,1],[1,1,2,3,1,3],[1,3,2,1,1,3],[1,3,2,3,1,1],[2,1,1,3,1,3],[2,3,1,1,1,3],[2,3,1,3,1,1],[1,1,2,1,3,3],[1,1,2,3,3,1],[1,3,2,1,3,1],[1,1,3,1,2,3],[1,1,3,3,2,1],[1,3,3,1,2,1],[3,1,3,1,2,1],[2,1,1,3,3,1],[2,3,1,1,3,1],[2,1,3,1,1,3],[2,1,3,3,1,1],[2,1,3,1,3,1],[3,1,1,1,2,3],[3,1,1,3,2,1],[3,3,1,1,2,1],[3,1,2,1,1,3],[3,1,2,3,1,1],[3,3,2,1,1,1],[3,1,4,1,1,1],[2,2,1,4,1,1],[4,3,1,1,1,1],[1,1,1,2,2,4],[1,1,1,4,2,2],[1,2,1,1,2,4],[1,2,1,4,2,1],[1,4,1,1,2,2],[1,4,1,2,2,1],[1,1,2,2,1,4],[1,1,2,4,1,2],[1,2,2,1,1,4],[1,2,2,4,1,1],[1,4,2,1,1,2],[1,4,2,2,1,1],[2,4,1,2,1,1],[2,2,1,1,1,4],[4,1,3,1,1,1],[2,4,1,1,1,2],[1,3,4,1,1,1],[1,1,1,2,4,2],[1,2,1,1,4,2],[1,2,1,2,4,1],[1,1,4,2,1,2],[1,2,4,1,1,2],[1,2,4,2,1,1],[4,1,1,2,1,2],[4,2,1,1,1,2],[4,2,1,2,1,1],[2,1,2,1,4,1],[2,1,4,1,2,1],[4,1,2,1,2,1],[1,1,1,1,4,3],[1,1,1,3,4,1],[1,3,1,1,4,1],[1,1,4,1,1,3],[1,1,4,3,1,1],[4,1,1,1,1,3],[4,1,1,3,1,1],[1,1,3,1,4,1],[1,1,4,1,3,1],[3,1,1,1,4,1],[4,1,1,1,3,1],[2,1,1,4,1,2],[2,1,1,2,1,4],[2,1,1,2,3,2],[2,3,3,1,1,1,2]]},SINGLE_CODE_ERROR:{value:1},AVG_CODE_ERROR:{value:.5},FORMAT:{value:"code_128",writeable:!1}};return b.prototype=Object.create(a.prototype,c),b.prototype.constructor=b,b.prototype._decodeCode=function(a){var b,c,d,e,f=[0,0,0,0,0,0],g=this,h=a,i=!g._row[h],j=0,k={error:Number.MAX_VALUE,code:-1,start:a,end:a};for(b=h;bd;d++)g[d]=g[d+2];g[4]=0,g[5]=0,k--}else k++;g[k]=1,j=!j}return null},b.prototype._decode=function(){var a,b,c,d=this,e=d._findStart(),f=null,g=!1,h=[],i=0,j=0,k=[],l=[],m=!1;if(null===e)return null;switch(f={code:e.code,start:e.start,end:e.end},l.push(f),j=f.code,f.code){case d.START_CODE_A:a=d.CODE_A;break;case d.START_CODE_B:a=d.CODE_B;break;case d.START_CODE_C:a=d.CODE_C;break;default:return null}for(;!g;){if(b=m,m=!1,f=d._decodeCode(f.end),null!==f)switch(f.code!==d.STOP_CODE&&(k.push(f.code),i++,j+=i*f.code),l.push(f),a){case d.CODE_A:if(f.code<64)h.push(String.fromCharCode(32+f.code));else if(f.code<96)h.push(String.fromCharCode(f.code-64));else switch(f.code){case d.CODE_SHIFT:m=!0,a=d.CODE_B;break;case d.CODE_B:a=d.CODE_B;break;case d.CODE_C:a=d.CODE_C;break;case d.STOP_CODE:g=!0}break;case d.CODE_B:if(f.code<96)h.push(String.fromCharCode(32+f.code));else switch(f.code!=d.STOP_CODE&&(c=!1),f.code){case d.CODE_SHIFT:m=!0,a=d.CODE_A;break;case d.CODE_A:a=d.CODE_A;break;case d.CODE_C:a=d.CODE_C;break;case d.STOP_CODE:g=!0}break;case d.CODE_C:switch(f.code<100&&h.push(f.code<10?"0"+f.code:f.code),f.code){case d.CODE_A:a=d.CODE_A;break;case d.CODE_B:a=d.CODE_B;break;case d.STOP_CODE:g=!0}}else g=!0;b&&(a=a==d.CODE_A?d.CODE_B:d.CODE_A)}return null===f?null:(f.end=d._nextUnset(d._row,f.end),d._verifyTrailingWhitespace(f)?(j-=i*k[k.length-1],j%103!=k[k.length-1]?null:h.length?(h.splice(h.length-1,1),{code:h.join(""),start:e.start,end:f.end,codeset:a,startInfo:e,decodedCodes:l,endInfo:f}):null):null)},a.prototype._verifyTrailingWhitespace=function(a){var b,c=this;return b=a.end+(a.end-a.start)/2,bd;d++)e=h._matchPattern(f,h.CODE_PATTERN[d]),eh.AVG_CODE_ERROR?null:l}}else k++;g[k]=1,j=!j}return null},b.prototype._findPattern=function(a,b,c,d,e){var f,g,h,i,j,k=[],l=this,m=0,n={error:Number.MAX_VALUE,code:-1,start:0,end:0};for(b||(b=l._nextSet(l._row)),void 0===c&&(c=!1),void 0===d&&(d=!0),void 0===e&&(e=l.AVG_CODE_ERROR),f=0;fg))return n.error=g,n.start=f-i,n.end=f,n;if(!d)return null;for(h=0;h=0&&c._matchRange(a,b.start,0))return b;d=b.end,b=null}},b.prototype._verifyTrailingWhitespace=function(a){var b,c=this;return b=a.end+(a.end-a.start),bd;d++){if(a=f._decodeCode(a.end),!a)return null;a.code>=f.CODE_G_START?(a.code=a.code-f.CODE_G_START,g|=1<<5-d):g|=0<<5-d,b.push(a.code),c.push(a)}if(e=f._calculateFirstDigit(g),null===e)return null;if(b.unshift(e),a=f._findPattern(f.MIDDLE_PATTERN,a.end,!0,!1),null===a)return null;for(c.push(a),d=0;6>d;d++){if(a=f._decodeCode(a.end,f.CODE_G_START),!a)return null;c.push(a),b.push(a.code)}return a},b.prototype._decode=function(){var a,b,c=this,d=[],e=[];return(a=c._findStart())?(b={code:a.code,start:a.start,end:a.end},e.push(b),(b=c._decodePayload(b,d,e))&&(b=c._findEnd(b.end,!1))?(e.push(b),c._checksum(d)?{code:d.join(""),start:a.start,end:b.end,codeset:"",startInfo:a,decodedCodes:e}:null):null):null},b.prototype._checksum=function(a){var b,c=0;for(b=a.length-2;b>=0;b-=2)c+=a[b];for(c*=3,b=a.length-1;b>=0;b-=2)c+=a[b];return c%10===0},b}),d("code_39_reader",["./barcode_reader","./array_helper"],function(a,b){"use strict";function c(){a.call(this)}var d={ALPHABETH_STRING:{value:"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,45,46,32,42,36,47,43,37]},CHARACTER_ENCODINGS:{value:[52,289,97,352,49,304,112,37,292,100,265,73,328,25,280,88,13,268,76,28,259,67,322,19,274,82,7,262,70,22,385,193,448,145,400,208,133,388,196,148,168,162,138,42]},ASTERISK:{value:148},FORMAT:{value:"code_39",writeable:!1}};return c.prototype=Object.create(a.prototype,d),c.prototype.constructor=c,c.prototype._toCounters=function(a,c){var d,e=this,f=c.length,g=e._row.length,h=!e._row[a],i=0;for(b.init(c,0),d=a;g>d;d++)if(e._row[d]^h)c[i]++;else{if(i++,i===f)break;c[i]=1,h=!h}return c},c.prototype._decode=function(){var a,c,d,e,f=this,g=[0,0,0,0,0,0,0,0,0],h=[],i=f._findStart();if(!i)return null;e=f._nextSet(f._row,i.end);do{if(g=f._toCounters(e,g),d=f._toPattern(g),0>d)return null;if(a=f._patternToChar(d),0>a)return null;h.push(a),c=e,e+=b.sum(g),e=f._nextSet(f._row,e)}while("*"!==a);return h.pop(),h.length&&f._verifyTrailingWhitespace(c,e,g)?{code:h.join(""),start:i.start,end:e,startInfo:i,decodedCodes:h}:null},c.prototype._verifyTrailingWhitespace=function(a,c,d){var e,f=b.sum(d);return e=c-a-f,3*e>=f?!0:!1},c.prototype._patternToChar=function(a){var b,c=this;for(b=0;bb&&(d=a[c]);return d},c.prototype._toPattern=function(a){for(var b,c,d=a.length,e=0,f=d,g=0,h=this;f>3;){for(e=h._findNextWidth(a,e),f=0,b=0,c=0;d>c;c++)a[c]>e&&(b|=1<c&&f>0;c++)if(a[c]>e&&(f--,2*a[c]>=g))return-1;return b}}return-1},c.prototype._findStart=function(){var a,b,c,d=this,e=d._nextSet(d._row),f=e,g=[0,0,0,0,0,0,0,0,0],h=0,i=!1;for(a=e;ab;b++)g[b]=g[b+2];g[7]=0,g[8]=0,h--}else h++;g[h]=1,i=!i}return null},c}),d("code_39_vin_reader",["./code_39_reader"],function(a){"use strict";function b(){a.call(this)}var c={IOQ:/[IOQ]/g,AZ09:/[A-Z0-9]{17}/};return b.prototype=Object.create(a.prototype),b.prototype.constructor=b,b.prototype._decode=function(){var b=a.prototype._decode.apply(this);if(!b)return null;var d=b.code;if(d)return d=d.replace(c.IOQ,""),d.match(c.AZ09)?this._checkChecksum(d)?(b.code=d,b):null:(console.log("Failed AZ09 pattern code:",d),null)},b.prototype._checkChecksum=function(a){return!!a},b}),d("codabar_reader",["./barcode_reader"],function(a){"use strict";function b(){a.call(this),this._counters=[]}var c={ALPHABETH_STRING:{value:"0123456789-$:/.+ABCD"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,45,36,58,47,46,43,65,66,67,68]},CHARACTER_ENCODINGS:{value:[3,6,9,96,18,66,33,36,48,72,12,24,69,81,84,21,26,41,11,14]},START_END:{value:[26,41,11,14]},MIN_ENCODED_CHARS:{value:4},MAX_ACCEPTABLE:{value:2},PADDING:{value:1.5},FORMAT:{value:"codabar",writeable:!1}};return b.prototype=Object.create(a.prototype,c),b.prototype.constructor=b,b.prototype._decode=function(){var a,b,c,d,e,f=this,g=[];if(this._counters=f._fillCounters(),a=f._findStart(),!a)return null;d=a.startCounter;do{if(c=f._toPattern(d),0>c)return null;if(b=f._patternToChar(c),0>b)return null;if(g.push(b),d+=8,g.length>1&&f._isStartEnd(c))break}while(df._counters.length?f._counters.length:d,e=a.start+f._sumCounters(a.startCounter,d-8),{code:g.join(""),start:a.start,end:e,startInfo:a,decodedCodes:g}):null},b.prototype._verifyWhitespace=function(a,b){return(0>=a-1||this._counters[a-1]>=this._calculatePatternLength(a)/2)&&(b+8>=this._counters.length||this._counters[b+7]>=this._calculatePatternLength(b)/2)?!0:!1},b.prototype._calculatePatternLength=function(a){var b,c=0;for(b=a;a+7>b;b++)c+=this._counters[b];return c},b.prototype._thresholdResultPattern=function(a,b){var c,d,e,f,g,h=this,i={space:{narrow:{size:0,counts:0,min:0,max:Number.MAX_VALUE},wide:{size:0,counts:0,min:0,max:Number.MAX_VALUE}},bar:{narrow:{size:0,counts:0,min:0,max:Number.MAX_VALUE},wide:{size:0,counts:0,min:0,max:Number.MAX_VALUE}}},j=b;for(e=0;e=0;f--)c=2===(1&f)?i.bar:i.space,d=1===(1&g)?c.wide:c.narrow,d.size+=h._counters[j+f],d.counts++,g>>=1;j+=8}return["space","bar"].forEach(function(a){var b=i[a];b.wide.min=Math.floor((b.narrow.size/b.narrow.counts+b.wide.size/b.wide.counts)/2),b.narrow.max=Math.ceil(b.wide.min),b.wide.max=Math.ceil((b.wide.size*h.MAX_ACCEPTABLE+h.PADDING)/b.wide.counts)}),i},b.prototype._charToPattern=function(a){var b,c=this,d=a.charCodeAt(0);for(b=0;b=0;d--){if(e=0===(1&d)?j.bar:j.space,f=1===(1&h)?e.wide:e.narrow,g=i._counters[k+d],gf.max)return!1;h>>=1}k+=8}return!0},b.prototype._patternToChar=function(a){var b,c=this;for(b=0;bc;c+=2)d=this._counters[c],d>f&&(f=d),e>d&&(e=d);return(e+f)/2|0},b.prototype._toPattern=function(a){var b,c,d,e,f=7,g=a+f,h=1<this._counters.length)return-1;for(b=this._computeAlternatingThreshold(a,g),c=this._computeAlternatingThreshold(a+1,g),d=0;f>d;d++)e=0===(1&d)?b:c,this._counters[a+d]>e&&(i|=h),h>>=1;return i},b.prototype._isStartEnd=function(a){var b;for(b=0;bc;c++)d+=this._counters[c];return d},b.prototype._findStart=function(){var a,b,c,d=this,e=d._nextUnset(d._row);for(a=1;ad;d++){if(a=e._decodeCode(a.end,e.CODE_G_START),!a)return null;b.push(a.code),c.push(a)}if(a=e._findPattern(e.MIDDLE_PATTERN,a.end,!0,!1),null===a)return null;for(c.push(a),d=0;4>d;d++){if(a=e._decodeCode(a.end,e.CODE_G_START),!a)return null;c.push(a),b.push(a.code)}return a},b}),d("upc_e_reader",["./ean_reader"],function(a){"use strict";function b(){a.call(this)}var c={CODE_FREQUENCY:{value:[[56,52,50,49,44,38,35,42,41,37],[7,11,13,14,19,25,28,21,22,26]]},STOP_PATTERN:{value:[1/6*7,1/6*7,1/6*7,1/6*7,1/6*7,1/6*7]},FORMAT:{value:"upc_e",writeable:!1}};return b.prototype=Object.create(a.prototype,c),b.prototype.constructor=b,b.prototype._decodePayload=function(a,b,c){var d,e=this,f=0;for(d=0;6>d;d++){if(a=e._decodeCode(a.end),!a)return null;a.code>=e.CODE_G_START&&(a.code=a.code-e.CODE_G_START,f|=1<<5-d),b.push(a.code),c.push(a)}return e._determineParity(f,b)?a:null},b.prototype._determineParity=function(a,b){var c,d,e=this;for(d=0;d=c?b.concat(a.slice(1,3)).concat([c,0,0,0,0]).concat(a.slice(3,6)):3===c?b.concat(a.slice(1,4)).concat([0,0,0,0,0]).concat(a.slice(4,6)):4===c?b.concat(a.slice(1,5)).concat([0,0,0,0,0,a[5]]):b.concat(a.slice(1,6)).concat([0,0,0,0,c]),b.push(a[a.length-1]),b},b.prototype._checksum=function(b){return a.prototype._checksum.call(this,this._convertToUPCA(b))},b.prototype._findEnd=function(b,c){return c=!0,a.prototype._findEnd.call(this,b,c)},b.prototype._verifyTrailingWhitespace=function(a){var b,c=this;return b=a.end+(a.end-a.start)/2,bf))return m.error=f,m.start=e-h,m.end=e,m;if(!d)return null;for(g=0;g=0&&c._matchRange(a,b.start,0))return b;d=b.end,b=null}},c.prototype._verifyTrailingWhitespace=function(a){var b,c=this;return b=a.end+(a.end-a.start)/2,bg;){for(d=0;5>d;d++)i[0][d]=a[g]*this.barSpaceRatio[0],i[1][d]=a[g+1]*this.barSpaceRatio[1],g+=2;if(e=f._decodePair(i),!e)return null;for(d=0;d1&&(!d.inImageWithBorder(a[0],0)||!d.inImageWithBorder(a[1],0));)c-=Math.ceil(c/2),e(-c);return a}function i(a){return[{x:(a[1][0]-a[0][0])/2+a[0][0],y:(a[1][1]-a[0][1])/2+a[0][1]},{x:(a[3][0]-a[2][0])/2+a[2][0],y:(a[3][1]-a[2][1])/2+a[2][1]}]}function j(e){var f,g=null,h=a.getBarcodeLine(d,e[0],e[1]);for(c.showFrequency&&(b.drawPath(e,{x:"x",y:"y"},o.ctx.overlay,{color:"red",lineWidth:3}),a.debug.printFrequency(h.line,o.dom.frequency)),a.toBinaryLine(h),c.showPattern&&a.debug.printPattern(h.line,o.dom.pattern),f=0;fd&&null===i;d++)e=g/h*d*(d%2===0?-1:1),f={y:e*k,x:e*l},b[0].y+=f.x,b[0].x-=f.y,b[1].y+=f.x,b[1].x-=f.y,i=j(b);return i}function m(a){return Math.sqrt(Math.pow(Math.abs(a[1].y-a[0].y),2)+Math.pow(Math.abs(a[1].x-a[0].x),2))}function n(a){var d,e,f,g,l=o.ctx.overlay;return c.drawBoundingBox&&l&&b.drawPath(a,{x:0,y:1},l,{color:"blue",lineWidth:2}),d=i(a),g=m(d),e=Math.atan2(d[1].y-d[0].y,d[1].x-d[0].x),d=h(d,e,Math.floor(.1*g)),null===d?null:(f=j(d),null===f&&(f=k(a,d,e)),null===f?null:(f&&c.drawScanline&&l&&b.drawPath(d,{x:"x",y:"y"},l,{color:"red",lineWidth:3}),{codeResult:f.codeResult,line:d,angle:e,pattern:f.barcodeLine.line,threshold:f.barcodeLine.threshold}))}var o={ctx:{frequency:null,pattern:null,overlay:null},dom:{frequency:null,pattern:null,overlay:null}},p=[];return e(),f(),g(),{decodeFromBoundingBox:function(a){return n(a)},decodeFromBoundingBoxes:function(a){var b,c;for(b=0;b0?a.videoWidth>0&&a.videoHeight>0?(console.log(a.videoWidth+"px x "+a.videoHeight+"px"),b()):window.setTimeout(c,500):b("Unable to play video stream. Is webcam working?"),d--}var d=10;c()}function d(a,d,e){b(a,function(a){d.src=a,h&&d.removeEventListener("loadeddata",h,!1),h=c.bind(null,d,e),d.addEventListener("loadeddata",h,!1),d.play()},function(a){e(a)})}function e(b,c){var d={audio:!1,video:!0},e=a.mergeObjects({width:640,height:480,minAspectRatio:0,maxAspectRatio:100,facing:"environment"},b);return"undefined"==typeof MediaStreamTrack||"undefined"==typeof MediaStreamTrack.getSources?(d.video={mediaSource:"camera",width:{min:e.width,max:e.width},height:{min:e.height,max:e.height},require:["width","height"]},c(d)):void MediaStreamTrack.getSources(function(a){for(var b,f=0;f!=a.length;++f){var g=a[f];"video"==g.kind&&g.facing==e.facing&&(b=g.id)}return d.video={mandatory:{minWidth:e.width,minHeight:e.height,minAspectRatio:e.minAspectRatio,maxAspectRatio:e.maxAspectRatio},optional:[{sourceId:b}]},c(d)})}function f(a,b,c){e(b,function(b){d(b,a,c)})}var g,h;return{request:function(a,b,c){f(a,b,c)},release:function(){var 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b=document.createElement("br");b.setAttribute("clear","all"),a&&a.appendChild(b)}M.ctx.overlay=M.dom.overlay.getContext("2d"),M.dom.overlay.width=F.getCanvasSize().x,M.dom.overlay.height=F.getCanvasSize().y}}function t(a){I=a?a:new c({x:F.getWidth(),y:F.getHeight()}),console.log(I.size),J=[j.create([0,0]),j.create([0,I.size.y]),j.create([I.size.x,I.size.y]),j.create([I.size.x,0])],d.init(I,h.locator)}function u(){return h.locate?d.locate():[[j.create(J[0]),j.create(J[1]),j.create(J[2]),j.create(J[3])]]}function v(a){function b(a){for(var b=a.length;b--;)a[b][0]+=f,a[b][1]+=g}function c(a){a[0].x+=f,a[0].y+=g,a[1].x+=f,a[1].y+=g}var d,e=F.getTopRight(),f=e.x,g=e.y;if(a&&(0!==f||0!==g)&&(a.line&&2===a.line.length&&c(a.line),a.boxes&&a.boxes.length>0))for(d=0;d0){if(a=N.filter(function(a){return!a.busy})[0],!a)return;G.attachData(a.imageData)}else G.attachData(I.data);G.grab()&&(a?(a.busy=!0,a.worker.postMessage({cmd:"process",imageData:a.imageData},[a.imageData.buffer])):x())}else 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a.addResult&&(L=a)},canvas:M,decodeSingle:function(a,b){a=g.mergeObjects({inputStream:{type:"ImageStream",sequence:!1,size:800,src:a.src},numOfWorkers:1,locator:{halfSample:!1}},a),this.init(a,function(){i.once("processed",function(a){H=!0,b.call(null,a)},!0),z()})},ImageWrapper:c,ImageDebug:l,ResultCollector:m}}),c("quagga")}); +>>>>>>> bc7283003570f6aa9b9930de2e1208cd18656951 diff --git a/example/file_input_require.js b/example/file_input_require.js index 91569d1..cf4655d 100644 --- a/example/file_input_require.js +++ b/example/file_input_require.js @@ -116,12 +116,13 @@ define(['quagga'], function(Quagga) { singleChannel: false }, locator: { - patchSize: "medium", - halfSample: true + patchSize: "large", + halfSample: true, + showCanvas: true }, numOfWorkers: 0, decoder: { - readers: ["code_128_reader"], + readers: ["i2of5_reader"], showFrequency: true, showPattern: true }, diff --git a/example/live_w_locator.html b/example/live_w_locator.html index 72c8d19..739c505 100644 --- a/example/live_w_locator.html +++ b/example/live_w_locator.html @@ -41,6 +41,7 @@ +