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Initial migration to webpack

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pull/72/head
Christoph Oberhofer 10 years ago
parent a852394bd9
commit 38da5b0d41
40 changed files with 18672 additions and 12917 deletions
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41
Gruntfile.js
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@ -11,49 +11,8 @@ module.exports = function(grunt) {
configFile: 'karma-integration.conf.js' configFile: 'karma-integration.conf.js'
} }
}, },
uglify : {
options : {
banner : '/*! <%= pkg.name %> <%= grunt.template.today("yyyy-mm-dd") %> */\n',
preserveComments: 'some'
},
build : {
src : 'dist/<%= pkg.name %>.js',
dest : 'dist/<%= pkg.name %>.min.js'
}
},
jshint : { jshint : {
all : ['Gruntfile.js', 'src/*.js'] all : ['Gruntfile.js', 'src/*.js']
},
requirejs : {
compile : {
options : {
almond : true,
wrap : {
startFile : 'build/start.frag',
endFile : 'build/end.frag'
},
"baseUrl" : "src",
"name" : "quagga",
"useStrict": true,
"out" : "dist/quagga.js",
"include" : ['quagga'],
"optimize" : "none",
"findNestedDependencies" : true,
"skipSemiColonInsertion" : true,
"shim" : {
"typedefs" : {
"deps" : [],
"exports" : "typedefs"
}
},
"paths" : {
"typedefs" : "typedefs",
"gl-matrix": "../node_modules/gl-matrix/dist/gl-matrix-min"
}
}
}
} }
}); });

14632
dist/quagga.js vendored
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1
dist/quagga.map vendored
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17
dist/quagga.min.js vendored
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11
package.json
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@ -6,6 +6,9 @@
"browser": "dist/quagga.js", "browser": "dist/quagga.js",
"devDependencies": { "devDependencies": {
"async": "^1.4.2", "async": "^1.4.2",
"babel-core": "^5.8.25",
"babel-eslint": "^4.1.3",
"babel-loader": "^5.3.2",
"chai": "^3.2.0", "chai": "^3.2.0",
"grunt": "^0.4.5", "grunt": "^0.4.5",
"grunt-contrib-jshint": "^0.11.3", "grunt-contrib-jshint": "^0.11.3",
@ -23,7 +26,9 @@
"karma-sinon": "^1.0.4", "karma-sinon": "^1.0.4",
"karma-sinon-chai": "~0.2.0", "karma-sinon-chai": "~0.2.0",
"mocha": "^2.3.2", "mocha": "^2.3.2",
"sinon": "^1.16.1" "sinon": "^1.16.1",
"webpack": "^1.12.2",
"webpack-core": "^0.6.7"
}, },
"directories": { "directories": {
"doc": "doc" "doc": "doc"
@ -56,8 +61,8 @@
"dependencies": { "dependencies": {
"get-pixels": "^3.2.3", "get-pixels": "^3.2.3",
"gl-matrix": "^2.3.1", "gl-matrix": "^2.3.1",
"lodash": "^3.10.1",
"ndarray": "^1.0.18", "ndarray": "^1.0.18",
"ndarray-linear-interpolate": "^1.0.0", "ndarray-linear-interpolate": "^1.0.0"
"requirejs": "^2.1.20"
} }
} }

35
plugins/umd.js
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@ -0,0 +1,35 @@
var ConcatSource = require("webpack-core/lib/ConcatSource");
var OriginalSource = require("webpack-core/lib/OriginalSource");
function MyUmdPlugin(options) {
this.name = options.library;
console.log(this.name);
}
module.exports = MyUmdPlugin;
MyUmdPlugin.prototype.apply = function(compiler) {
compiler.plugin("this-compilation", function(compilation) {
var mainTemplate = compilation.mainTemplate;
console.log("Compilation: " + (typeof compilation.templatesPlugin));
compilation.templatesPlugin("render-with-entry", function(source, chunk, hash) {
var amdFactory = "factory";
return new ConcatSource(new OriginalSource(
"(function webpackUniversalModuleDefinition(root, factory) {\n" +
" if(typeof exports === 'object' && typeof module === 'object')\n" +
" module.exports = factory(factory.toString());\n" +
" else if(typeof exports === 'object')\n" +
" exports[\"" + this.name + "\"] = factory(factory.toString());\n" +
" else\n" +
" root[\"" + this.name + "\"] = factory(factory.toString());\n" +
"})(this, function(__factorySource__) {\nreturn ", "webpack/myModuleDefinition"), source, "\n});\n");
}.bind(this));
mainTemplate.plugin("global-hash-paths", function(paths) {
if(this.name) paths = paths.concat(this.name);
return paths;
}.bind(this));
mainTemplate.plugin("hash", function(hash) {
hash.update("umd");
hash.update(this.name + "");
}.bind(this));
}.bind(this));
};

11
src/array_helper.js
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@ -1,10 +1,4 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ export default {
/* global define */
define(function() {
"use strict";
return {
init : function(arr, val) { init : function(arr, val) {
var l = arr.length; var l = arr.length;
while (l--) { while (l--) {
@ -82,5 +76,4 @@ define(function() {
} }
return sum; return sum;
} }
}; };
});

50
src/barcode_decoder.js
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@ -1,33 +1,16 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import Bresenham from './bresenham';
/* global define */ import ImageDebug from './image_debug';
import Code128Reader from './code_128_reader';
import EANReader from './ean_reader';
import Code39Reader from './code_39_reader';
import Code39VINReader from './code_39_vin_reader';
import CodabarReader from './codabar_reader';
import UPCReader from './upc_reader';
import EAN8Reader from './ean_8_reader';
import UPCEReader from './upc_e_reader';
import I2of5Reader from './i2of5_reader';
define([ var readers = {
"bresenham",
"image_debug",
'code_128_reader',
'ean_reader',
'code_39_reader',
'code_39_vin_reader',
'codabar_reader',
'upc_reader',
'ean_8_reader',
'upc_e_reader',
'i2of5_reader'
], function(
Bresenham,
ImageDebug,
Code128Reader,
EANReader,
Code39Reader,
Code39VINReader,
CodabarReader,
UPCReader,
EAN8Reader,
UPCEReader,
I2of5Reader) {
"use strict";
var readers = {
code_128_reader: Code128Reader, code_128_reader: Code128Reader,
ean_reader: EANReader, ean_reader: EANReader,
ean_8_reader: EAN8Reader, ean_8_reader: EAN8Reader,
@ -37,8 +20,8 @@ define([
upc_reader: UPCReader, upc_reader: UPCReader,
upc_e_reader: UPCEReader, upc_e_reader: UPCEReader,
i2of5_reader: I2of5Reader i2of5_reader: I2of5Reader
}; };
var BarcodeDecoder = { export default {
create : function(config, inputImageWrapper) { create : function(config, inputImageWrapper) {
var _canvas = { var _canvas = {
ctx : { ctx : {
@ -299,7 +282,4 @@ define([
} }
}; };
} }
}; };
return (BarcodeDecoder);
});

82
src/barcode_locator.js
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@ -1,10 +1,16 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ /* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */ /* global define */
define("barcode_locator", ["image_wrapper", "cv_utils", "rasterizer", "tracer", "skeletonizer", "array_helper", "image_debug", "gl-matrix"], import ImageWrapper from './image_wrapper';
function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, ImageDebug, glMatrix) { import CVUtils from './cv_utils';
import Rasterizer from './rasterizer';
var _config, import Tracer from './tracer';
import skeletonizer from './skeletonizer';
import ArrayHelper from './array_helper';
import ImageDebug from './image_debug';
import glMatrix from 'gl-matrix';
var _config,
_currentImageWrapper, _currentImageWrapper,
_skelImageWrapper, _skelImageWrapper,
_subImageWrapper, _subImageWrapper,
@ -27,9 +33,9 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
_skeletonizer, _skeletonizer,
vec2 = glMatrix.vec2, vec2 = glMatrix.vec2,
mat2 = glMatrix.mat2, mat2 = glMatrix.mat2,
self = this; self = (typeof window !== 'undefined') ? window : self;
function initBuffers() { function initBuffers() {
var skeletonImageData; var skeletonImageData;
if (_config.halfSample) { if (_config.halfSample) {
@ -63,9 +69,9 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
}, undefined, Array, true); }, undefined, Array, true);
_patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true); _patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true);
_patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true); _patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true);
} }
function initCanvas() { function initCanvas() {
if (_config.useWorker || typeof document === 'undefined') { if (_config.useWorker || typeof document === 'undefined') {
return; return;
} }
@ -77,13 +83,13 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
_canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext("2d"); _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext("2d");
_canvasContainer.dom.binary.width = _binaryImageWrapper.size.x; _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x;
_canvasContainer.dom.binary.height = _binaryImageWrapper.size.y; _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y;
} }
/** /**
* Creates a bounding box which encloses all the given patches * Creates a bounding box which encloses all the given patches
* @returns {Array} The minimal bounding box * @returns {Array} The minimal bounding box
*/ */
function boxFromPatches(patches) { 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; 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 // draw all patches which are to be taken into consideration
@ -158,24 +164,24 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
} }
return box; return box;
} }
/** /**
* Creates a binary image of the current image * Creates a binary image of the current image
*/ */
function binarizeImage() { function binarizeImage() {
CVUtils.otsuThreshold(_currentImageWrapper, _binaryImageWrapper); CVUtils.otsuThreshold(_currentImageWrapper, _binaryImageWrapper);
_binaryImageWrapper.zeroBorder(); _binaryImageWrapper.zeroBorder();
if (_config.showCanvas) { if (_config.showCanvas) {
_binaryImageWrapper.show(_canvasContainer.dom.binary, 255); _binaryImageWrapper.show(_canvasContainer.dom.binary, 255);
} }
} }
/** /**
* Iterate over the entire image * Iterate over the entire image
* extract patches * extract patches
*/ */
function findPatches() { function findPatches() {
var i, var i,
j, j,
x, x,
@ -220,14 +226,14 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
} }
return patchesFound; return patchesFound;
} }
/** /**
* Finds those connected areas which contain at least 6 patches * Finds those connected areas which contain at least 6 patches
* and returns them ordered DESC by the number of contained patches * and returns them ordered DESC by the number of contained patches
* @param {Number} maxLabel * @param {Number} maxLabel
*/ */
function findBiggestConnectedAreas(maxLabel){ function findBiggestConnectedAreas(maxLabel){
var i, var i,
sum, sum,
labelHist = [], labelHist = [],
@ -260,12 +266,12 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
}); });
return topLabels; return topLabels;
} }
/** /**
* *
*/ */
function findBoxes(topLabels, maxLabel) { function findBoxes(topLabels, maxLabel) {
var i, var i,
j, j,
sum, sum,
@ -301,13 +307,13 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
} }
} }
return boxes; return boxes;
} }
/** /**
* Find similar moments (via cluster) * Find similar moments (via cluster)
* @param {Object} moments * @param {Object} moments
*/ */
function similarMoments(moments) { function similarMoments(moments) {
var clusters = CVUtils.cluster(moments, 0.90); var clusters = CVUtils.cluster(moments, 0.90);
var topCluster = CVUtils.topGeneric(clusters, 1, function(e) { var topCluster = CVUtils.topGeneric(clusters, 1, function(e) {
return e.getPoints().length; return e.getPoints().length;
@ -320,9 +326,9 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
} }
} }
return result; return result;
} }
function skeletonize(x, y) { function skeletonize(x, y) {
_binaryImageWrapper.subImageAsCopy(_subImageWrapper, CVUtils.imageRef(x, y)); _binaryImageWrapper.subImageAsCopy(_subImageWrapper, CVUtils.imageRef(x, y));
_skeletonizer.skeletonize(); _skeletonizer.skeletonize();
@ -330,9 +336,9 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
if (_config.showSkeleton) { if (_config.showSkeleton) {
_skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, CVUtils.imageRef(x, y)); _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, CVUtils.imageRef(x, y));
} }
} }
/** /**
* Extracts and describes those patches which seem to contain a barcode pattern * Extracts and describes those patches which seem to contain a barcode pattern
* @param {Array} moments * @param {Array} moments
* @param {Object} patchPos, * @param {Object} patchPos,
@ -340,7 +346,7 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
* @param {Number} y * @param {Number} y
* @returns {Array} list of patches * @returns {Array} list of patches
*/ */
function describePatch(moments, patchPos, x, y) { function describePatch(moments, patchPos, x, y) {
var k, var k,
avg, avg,
sum = 0, sum = 0,
@ -388,13 +394,13 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
} }
} }
return patchesFound; return patchesFound;
} }
/** /**
* finds patches which are connected and share the same orientation * finds patches which are connected and share the same orientation
* @param {Object} patchesFound * @param {Object} patchesFound
*/ */
function rasterizeAngularSimilarity(patchesFound) { function rasterizeAngularSimilarity(patchesFound) {
var label = 0, var label = 0,
threshold = 0.95, threshold = 0.95,
currIdx = 0, currIdx = 0,
@ -477,9 +483,9 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
} }
return label; return label;
} }
return { export default {
init : function(inputImageWrapper, config) { init : function(inputImageWrapper, config) {
_config = config; _config = config;
_inputImageWrapper = inputImageWrapper; _inputImageWrapper = inputImageWrapper;
@ -556,6 +562,4 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
width + " )and height (" + height + width + " )and height (" + height +
") must a multiple of " + patchSize.x); ") must a multiple of " + patchSize.x);
} }
}; };
});

61
src/barcode_reader.js
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@ -1,17 +1,10 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ function BarcodeReader(config) {
/* global define */
define(
function() {
"use strict";
function BarcodeReader(config) {
this._row = []; this._row = [];
this.config = config || {}; this.config = config || {};
return this; return this;
} }
BarcodeReader.prototype._nextUnset = function(line, start) { BarcodeReader.prototype._nextUnset = function(line, start) {
var i; var i;
if (start === undefined) { if (start === undefined) {
@ -23,9 +16,9 @@ define(
} }
} }
return line.length; return line.length;
}; };
BarcodeReader.prototype._matchPattern = function(counter, code) { BarcodeReader.prototype._matchPattern = function(counter, code) {
var i, var i,
error = 0, error = 0,
singleError = 0, singleError = 0,
@ -40,9 +33,9 @@ define(
error += singleError; error += singleError;
} }
return error/modulo; return error/modulo;
}; };
BarcodeReader.prototype._nextSet = function(line, offset) { BarcodeReader.prototype._nextSet = function(line, offset) {
var i; var i;
offset = offset || 0; offset = offset || 0;
@ -52,9 +45,9 @@ define(
} }
} }
return line.length; return line.length;
}; };
BarcodeReader.prototype._normalize = function(counter, modulo) { BarcodeReader.prototype._normalize = function(counter, modulo) {
var i, var i,
self = this, self = this,
sum = 0, sum = 0,
@ -87,9 +80,9 @@ define(
} }
} }
return normalized; return normalized;
}; };
BarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) { BarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) {
var counter = [], var counter = [],
i, i,
self = this, self = this,
@ -148,9 +141,9 @@ define(
bestMatch.end = self._row.length - 1; bestMatch.end = self._row.length - 1;
bestMatch.counter = counter; bestMatch.counter = counter;
return bestMatch; return bestMatch;
}; };
BarcodeReader.prototype.decodePattern = function(pattern) { BarcodeReader.prototype.decodePattern = function(pattern) {
var self = this, var self = this,
result; result;
@ -171,9 +164,9 @@ define(
result.format = self.FORMAT; result.format = self.FORMAT;
} }
return result; return result;
}; };
BarcodeReader.prototype._matchRange = function(start, end, value) { BarcodeReader.prototype._matchRange = function(start, end, value) {
var i; var i;
start = start < 0 ? 0 : start; start = start < 0 ? 0 : start;
@ -183,9 +176,9 @@ define(
} }
} }
return true; return true;
}; };
BarcodeReader.prototype._fillCounters = function(offset, end, isWhite) { BarcodeReader.prototype._fillCounters = function(offset, end, isWhite) {
var self = this, var self = this,
counterPos = 0, counterPos = 0,
i, i,
@ -206,26 +199,24 @@ define(
} }
} }
return counters; return counters;
}; };
Object.defineProperty(BarcodeReader.prototype, "FORMAT", { Object.defineProperty(BarcodeReader.prototype, "FORMAT", {
value: 'unknown', value: 'unknown',
writeable: false writeable: false
}); });
BarcodeReader.DIRECTION = { BarcodeReader.DIRECTION = {
FORWARD : 1, FORWARD : 1,
REVERSE : -1 REVERSE : -1
}; };
BarcodeReader.Exception = { BarcodeReader.Exception = {
StartNotFoundException : "Start-Info was not found!", StartNotFoundException : "Start-Info was not found!",
CodeNotFoundException : "Code could not be found!", CodeNotFoundException : "Code could not be found!",
PatternNotFoundException : "Pattern could not be found!" PatternNotFoundException : "Pattern could not be found!"
}; };
BarcodeReader.CONFIG_KEYS = {}; BarcodeReader.CONFIG_KEYS = {};
return (BarcodeReader); export default BarcodeReader;
}
);

37
src/bresenham.js
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@ -1,17 +1,15 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import CVUtils from './cv_utils';
/* global define */ import ImageWrapper from './image_wrapper';
define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) { var Bresenham = {};
"use strict";
var Bresenham = {};
var Slope = { var Slope = {
DIR : { DIR : {
UP : 1, UP : 1,
DOWN : -1 DOWN : -1
} }
}; };
/** /**
* Scans a line of the given image from point p1 to p2 and returns a result object containing * 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 * gray-scale values (0-255) of the underlying pixels in addition to the min
* and max values. * and max values.
@ -20,7 +18,7 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
* @param {Object} p2 The end point {x,y} * @param {Object} p2 The end point {x,y}
* @returns {line, min, max} * @returns {line, min, max}
*/ */
Bresenham.getBarcodeLine = function(imageWrapper, p1, p2) { Bresenham.getBarcodeLine = function(imageWrapper, p1, p2) {
var x0 = p1.x | 0, var x0 = p1.x | 0,
y0 = p1.y | 0, y0 = p1.y | 0,
x1 = p2.x | 0, x1 = p2.x | 0,
@ -90,9 +88,9 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
min : min, min : min,
max : max max : max
}; };
}; };
Bresenham.toOtsuBinaryLine = function(result) { Bresenham.toOtsuBinaryLine = function(result) {
var line = result.line, var line = result.line,
image = new ImageWrapper({x: line.length - 1, y: 1}, line), image = new ImageWrapper({x: line.length - 1, y: 1}, line),
threshold = CVUtils.determineOtsuThreshold(image, 5); threshold = CVUtils.determineOtsuThreshold(image, 5);
@ -104,14 +102,14 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
line: line, line: line,
threshold: threshold threshold: threshold
}; };
}; };
/** /**
* Converts the result from getBarcodeLine into a binary representation * Converts the result from getBarcodeLine into a binary representation
* also considering the frequency and slope of the signal for more robust results * also considering the frequency and slope of the signal for more robust results
* @param {Object} result {line, min, max} * @param {Object} result {line, min, max}
*/ */
Bresenham.toBinaryLine = function(result) { Bresenham.toBinaryLine = function(result) {
var min = result.min, var min = result.min,
max = result.max, max = result.max,
@ -178,12 +176,12 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
line : line, line : line,
threshold : threshold threshold : threshold
}; };
}; };
/** /**
* Used for development only * Used for development only
*/ */
Bresenham.debug = { Bresenham.debug = {
printFrequency: function(line, canvas) { printFrequency: function(line, canvas) {
var i, var i,
ctx = canvas.getContext("2d"); ctx = canvas.getContext("2d");
@ -211,7 +209,6 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
} }
} }
} }
}; };
return (Bresenham); export default Bresenham;
});

42
src/camera_access.js
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@ -1,18 +1,15 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ const merge = require('lodash/object/merge');
/* global define, MediaStreamTrack */
define(["html_utils"], function(HtmlUtils) { var streamRef,
"use strict";
var streamRef,
loadedDataHandler; loadedDataHandler;
/** /**
* Wraps browser-specific getUserMedia * Wraps browser-specific getUserMedia
* @param {Object} constraints * @param {Object} constraints
* @param {Object} success Callback * @param {Object} success Callback
* @param {Object} failure Callback * @param {Object} failure Callback
*/ */
function getUserMedia(constraints, success, failure) { function getUserMedia(constraints, success, failure) {
if (typeof navigator.getUserMedia !== 'undefined') { if (typeof navigator.getUserMedia !== 'undefined') {
navigator.getUserMedia(constraints, function (stream) { navigator.getUserMedia(constraints, function (stream) {
streamRef = stream; streamRef = stream;
@ -22,9 +19,9 @@ define(["html_utils"], function(HtmlUtils) {
} else { } else {
failure(new TypeError("getUserMedia not available")); failure(new TypeError("getUserMedia not available"));
} }
} }
function loadedData(video, callback) { function loadedData(video, callback) {
var attempts = 10; var attempts = 10;
function checkVideo() { function checkVideo() {
@ -41,16 +38,16 @@ define(["html_utils"], function(HtmlUtils) {
attempts--; attempts--;
} }
checkVideo(); checkVideo();
} }
/** /**
* Tries to attach the camera-stream to a given video-element * Tries to attach the camera-stream to a given video-element
* and calls the callback function when the content is ready * and calls the callback function when the content is ready
* @param {Object} constraints * @param {Object} constraints
* @param {Object} video * @param {Object} video
* @param {Object} callback * @param {Object} callback
*/ */
function initCamera(constraints, video, callback) { function initCamera(constraints, video, callback) {
getUserMedia(constraints, function(src) { getUserMedia(constraints, function(src) {
video.src = src; video.src = src;
if (loadedDataHandler) { if (loadedDataHandler) {
@ -62,20 +59,20 @@ define(["html_utils"], function(HtmlUtils) {
}, function(e) { }, function(e) {
callback(e); callback(e);
}); });
} }
/** /**
* Normalizes the incoming constraints to satisfy the current browser * Normalizes the incoming constraints to satisfy the current browser
* @param config * @param config
* @param cb Callback which is called whenever constraints are created * @param cb Callback which is called whenever constraints are created
* @returns {*} * @returns {*}
*/ */
function normalizeConstraints(config, cb) { function normalizeConstraints(config, cb) {
var constraints = { var constraints = {
audio: false, audio: false,
video: true video: true
}, },
videoConstraints = HtmlUtils.mergeObjects({ videoConstraints = merge({
width: 640, width: 640,
height: 480, height: 480,
minAspectRatio: 0, minAspectRatio: 0,
@ -114,21 +111,21 @@ define(["html_utils"], function(HtmlUtils) {
}; };
return cb(constraints); return cb(constraints);
} }
} }
/** /**
* Requests the back-facing camera of the user. The callback is called * Requests the back-facing camera of the user. The callback is called
* whenever the stream is ready to be consumed, or if an error occures. * whenever the stream is ready to be consumed, or if an error occures.
* @param {Object} video * @param {Object} video
* @param {Object} callback * @param {Object} callback
*/ */
function request(video, videoConstraints, callback) { function request(video, videoConstraints, callback) {
normalizeConstraints(videoConstraints, function(constraints) { normalizeConstraints(videoConstraints, function(constraints) {
initCamera(constraints, video, callback); initCamera(constraints, video, callback);
}); });
} }
return { export default {
request : function(video, constraints, callback) { request : function(video, constraints, callback) {
request(video, constraints, callback); request(video, constraints, callback);
}, },
@ -139,5 +136,4 @@ define(["html_utils"], function(HtmlUtils) {
} }
streamRef = null; streamRef = null;
} }
}; };
});

15
src/cluster.js
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@ -1,14 +1,8 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import {vec2} from 'gl-matrix';
/* global define */
define(["gl-matrix"], function(glMatrix) {
"use strict";
var vec2 = glMatrix.vec2;
/** /**
* Creates a cluster for grouping similar orientations of datapoints * Creates a cluster for grouping similar orientations of datapoints
*/ */
var Cluster = { export default {
create : function(point, threshold) { create : function(point, threshold) {
var points = [], center = { var points = [], center = {
rad : 0, rad : 0,
@ -66,7 +60,4 @@ define(["gl-matrix"], function(glMatrix) {
id : id id : id
}; };
} }
}; };
return (Cluster);
});

74
src/codabar_reader.js
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@ -1,19 +1,11 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import BarcodeReader from './barcode_reader';
/* global define */
define( function CodabarReader() {
[
"./barcode_reader"
],
function(BarcodeReader) {
"use strict";
function CodabarReader() {
BarcodeReader.call(this); BarcodeReader.call(this);
this._counters = []; this._counters = [];
} }
var properties = { var properties = {
ALPHABETH_STRING: {value: "0123456789-$:/.+ABCD"}, ALPHABETH_STRING: {value: "0123456789-$:/.+ABCD"},
ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68]}, 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: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E]}, CHARACTER_ENCODINGS: {value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E]},
@ -22,12 +14,12 @@ define(
MAX_ACCEPTABLE: {value: 2.0}, MAX_ACCEPTABLE: {value: 2.0},
PADDING: {value: 1.5}, PADDING: {value: 1.5},
FORMAT: {value: "codabar", writeable: false} FORMAT: {value: "codabar", writeable: false}
}; };
CodabarReader.prototype = Object.create(BarcodeReader.prototype, properties); CodabarReader.prototype = Object.create(BarcodeReader.prototype, properties);
CodabarReader.prototype.constructor = CodabarReader; CodabarReader.prototype.constructor = CodabarReader;
CodabarReader.prototype._decode = function() { CodabarReader.prototype._decode = function() {
var self = this, var self = this,
result = [], result = [],
start, start,
@ -83,18 +75,18 @@ define(
startInfo : start, startInfo : start,
decodedCodes : result decodedCodes : result
}; };
}; };
CodabarReader.prototype._verifyWhitespace = function(startCounter, endCounter) { CodabarReader.prototype._verifyWhitespace = function(startCounter, endCounter) {
if ((startCounter - 1 <= 0) || this._counters[startCounter-1] >= (this._calculatePatternLength(startCounter) / 2.0)) { if ((startCounter - 1 <= 0) || this._counters[startCounter-1] >= (this._calculatePatternLength(startCounter) / 2.0)) {
if ((endCounter + 8 >= this._counters.length) || this._counters[endCounter+7] >= (this._calculatePatternLength(endCounter) / 2.0)) { if ((endCounter + 8 >= this._counters.length) || this._counters[endCounter+7] >= (this._calculatePatternLength(endCounter) / 2.0)) {
return true; return true;
} }
} }
return false; return false;
}; };
CodabarReader.prototype._calculatePatternLength = function(offset) { CodabarReader.prototype._calculatePatternLength = function(offset) {
var i, var i,
sum = 0; sum = 0;
@ -103,9 +95,9 @@ define(
} }
return sum; return sum;
}; };
CodabarReader.prototype._thresholdResultPattern = function(result, startCounter){ CodabarReader.prototype._thresholdResultPattern = function(result, startCounter){
var self = this, var self = this,
categorization = { categorization = {
space: { space: {
@ -144,9 +136,9 @@ define(
}); });
return categorization; return categorization;
}; };
CodabarReader.prototype._charToPattern = function(char) { CodabarReader.prototype._charToPattern = function(char) {
var self = this, var self = this,
charCode = char.charCodeAt(0), charCode = char.charCodeAt(0),
i; i;
@ -157,9 +149,9 @@ define(
} }
} }
return 0x0; return 0x0;
}; };
CodabarReader.prototype._validateResult = function(result, startCounter) { CodabarReader.prototype._validateResult = function(result, startCounter) {
var self = this, var self = this,
thresholds = self._thresholdResultPattern(result, startCounter), thresholds = self._thresholdResultPattern(result, startCounter),
i, i,
@ -184,9 +176,9 @@ define(
pos += 8; pos += 8;
} }
return true; return true;
}; };
CodabarReader.prototype._patternToChar = function(pattern) { CodabarReader.prototype._patternToChar = function(pattern) {
var i, var i,
self = this; self = this;
@ -196,9 +188,9 @@ define(
} }
} }
return -1; return -1;
}; };
CodabarReader.prototype._computeAlternatingThreshold = function(offset, end) { CodabarReader.prototype._computeAlternatingThreshold = function(offset, end) {
var i, var i,
min = Number.MAX_VALUE, min = Number.MAX_VALUE,
max = 0, max = 0,
@ -215,9 +207,9 @@ define(
} }
return ((min + max) / 2.0) | 0; return ((min + max) / 2.0) | 0;
}; };
CodabarReader.prototype._toPattern = function(offset) { CodabarReader.prototype._toPattern = function(offset) {
var numCounters = 7, var numCounters = 7,
end = offset + numCounters, end = offset + numCounters,
barThreshold, barThreshold,
@ -243,9 +235,9 @@ define(
} }
return pattern; return pattern;
}; };
CodabarReader.prototype._isStartEnd = function(pattern) { CodabarReader.prototype._isStartEnd = function(pattern) {
var i; var i;
for (i = 0; i < this.START_END.length; i++) { for (i = 0; i < this.START_END.length; i++) {
@ -254,9 +246,9 @@ define(
} }
} }
return false; return false;
}; };
CodabarReader.prototype._sumCounters = function(start, end) { CodabarReader.prototype._sumCounters = function(start, end) {
var i, var i,
sum = 0; sum = 0;
@ -264,9 +256,9 @@ define(
sum += this._counters[i]; sum += this._counters[i];
} }
return sum; return sum;
}; };
CodabarReader.prototype._findStart = function() { CodabarReader.prototype._findStart = function() {
var self = this, var self = this,
i, i,
pattern, pattern,
@ -287,8 +279,6 @@ define(
}; };
} }
} }
}; };
return (CodabarReader); export default CodabarReader;
}
);

42
src/code_128_reader.js
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@ -1,18 +1,10 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import BarcodeReader from './barcode_reader';
/* global define */
define( function Code128Reader() {
[
"./barcode_reader"
],
function(BarcodeReader) {
"use strict";
function Code128Reader() {
BarcodeReader.call(this); BarcodeReader.call(this);
} }
var properties = { var properties = {
CODE_SHIFT : {value: 98}, CODE_SHIFT : {value: 98},
CODE_C : {value: 99}, CODE_C : {value: 99},
CODE_B : {value: 100}, CODE_B : {value: 100},
@ -134,12 +126,12 @@ define(
SINGLE_CODE_ERROR: {value: 1}, SINGLE_CODE_ERROR: {value: 1},
AVG_CODE_ERROR: {value: 0.5}, AVG_CODE_ERROR: {value: 0.5},
FORMAT: {value: "code_128", writeable: false} FORMAT: {value: "code_128", writeable: false}
}; };
Code128Reader.prototype = Object.create(BarcodeReader.prototype, properties); Code128Reader.prototype = Object.create(BarcodeReader.prototype, properties);
Code128Reader.prototype.constructor = Code128Reader; Code128Reader.prototype.constructor = Code128Reader;
Code128Reader.prototype._decodeCode = function(start) { Code128Reader.prototype._decodeCode = function(start) {
var counter = [0, 0, 0, 0, 0, 0], var counter = [0, 0, 0, 0, 0, 0],
i, i,
self = this, self = this,
@ -181,9 +173,9 @@ define(
} }
} }
return null; return null;
}; };
Code128Reader.prototype._findStart = function() { Code128Reader.prototype._findStart = function() {
var counter = [0, 0, 0, 0, 0, 0], var counter = [0, 0, 0, 0, 0, 0],
i, i,
self = this, self = this,
@ -241,9 +233,9 @@ define(
} }
} }
return null; return null;
}; };
Code128Reader.prototype._decode = function() { Code128Reader.prototype._decode = function() {
var self = this, var self = this,
startInfo = self._findStart(), startInfo = self._findStart(),
code = null, code = null,
@ -402,10 +394,10 @@ define(
decodedCodes : decodedCodes, decodedCodes : decodedCodes,
endInfo : code endInfo : code
}; };
}; };
BarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) { BarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) {
var self = this, var self = this,
trailingWhitespaceEnd; trailingWhitespaceEnd;
@ -416,8 +408,6 @@ define(
} }
} }
return null; return null;
}; };
return (Code128Reader); export default Code128Reader;
}
);

58
src/code_39_reader.js
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@ -1,30 +1,22 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import BarcodeReader from './barcode_reader';
/* global define */ import ArrayHelper from './array_helper';
define( function Code39Reader() {
[
"./barcode_reader",
"./array_helper"
],
function(BarcodeReader, ArrayHelper) {
"use strict";
function Code39Reader() {
BarcodeReader.call(this); BarcodeReader.call(this);
} }
var properties = { var properties = {
ALPHABETH_STRING: {value: "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"}, ALPHABETH_STRING: {value: "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"},
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]}, 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: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A]}, CHARACTER_ENCODINGS: {value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A]},
ASTERISK: {value: 0x094}, ASTERISK: {value: 0x094},
FORMAT: {value: "code_39", writeable: false} FORMAT: {value: "code_39", writeable: false}
}; };
Code39Reader.prototype = Object.create(BarcodeReader.prototype, properties); Code39Reader.prototype = Object.create(BarcodeReader.prototype, properties);
Code39Reader.prototype.constructor = Code39Reader; Code39Reader.prototype.constructor = Code39Reader;
Code39Reader.prototype._toCounters = function(start, counter) { Code39Reader.prototype._toCounters = function(start, counter) {
var self = this, var self = this,
numCounters = counter.length, numCounters = counter.length,
end = self._row.length, end = self._row.length,
@ -49,9 +41,9 @@ define(
} }
return counter; return counter;
}; };
Code39Reader.prototype._decode = function() { Code39Reader.prototype._decode = function() {
var self = this, var self = this,
counters = [0,0,0,0,0,0,0,0,0], counters = [0,0,0,0,0,0,0,0,0],
result = [], result = [],
@ -98,9 +90,9 @@ define(
startInfo : start, startInfo : start,
decodedCodes : result decodedCodes : result
}; };
}; };
Code39Reader.prototype._verifyTrailingWhitespace = function(lastStart, nextStart, counters) { Code39Reader.prototype._verifyTrailingWhitespace = function(lastStart, nextStart, counters) {
var trailingWhitespaceEnd, var trailingWhitespaceEnd,
patternSize = ArrayHelper.sum(counters); patternSize = ArrayHelper.sum(counters);
@ -109,9 +101,9 @@ define(
return true; return true;
} }
return false; return false;
}; };
Code39Reader.prototype._patternToChar = function(pattern) { Code39Reader.prototype._patternToChar = function(pattern) {
var i, var i,
self = this; self = this;
@ -120,9 +112,9 @@ define(
return String.fromCharCode(self.ALPHABET[i]); return String.fromCharCode(self.ALPHABET[i]);
} }
} }
}; };
Code39Reader.prototype._findNextWidth = function(counters, current) { Code39Reader.prototype._findNextWidth = function(counters, current) {
var i, var i,
minWidth = Number.MAX_VALUE; minWidth = Number.MAX_VALUE;
@ -133,9 +125,9 @@ define(
} }
return minWidth; return minWidth;
}; };
Code39Reader.prototype._toPattern = function(counters) { Code39Reader.prototype._toPattern = function(counters) {
var numCounters = counters.length, var numCounters = counters.length,
maxNarrowWidth = 0, maxNarrowWidth = 0,
numWideBars = numCounters, numWideBars = numCounters,
@ -169,9 +161,9 @@ define(
} }
} }
return -1; return -1;
}; };
Code39Reader.prototype._findStart = function() { Code39Reader.prototype._findStart = function() {
var self = this, var self = this,
offset = self._nextSet(self._row), offset = self._nextSet(self._row),
patternStart = offset, patternStart = offset,
@ -214,8 +206,6 @@ define(
} }
} }
return null; return null;
}; };
return (Code39Reader); export default Code39Reader;
}
);

38
src/code_39_vin_reader.js
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@ -1,28 +1,20 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import Code39Reader from './code_39_reader';
/* global define */
define( function Code39VINReader() {
[
"./code_39_reader"
],
function(Code39Reader) {
"use strict";
function Code39VINReader() {
Code39Reader.call(this); Code39Reader.call(this);
} }
var patterns = { var patterns = {
IOQ: /[IOQ]/g, IOQ: /[IOQ]/g,
AZ09: /[A-Z0-9]{17}/ AZ09: /[A-Z0-9]{17}/
}; };
Code39VINReader.prototype = Object.create(Code39Reader.prototype); Code39VINReader.prototype = Object.create(Code39Reader.prototype);
Code39VINReader.prototype.constructor = Code39VINReader; Code39VINReader.prototype.constructor = Code39VINReader;
// Cribbed from: // Cribbed from:
// https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java // https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java
Code39VINReader.prototype._decode = function() { Code39VINReader.prototype._decode = function() {
var result = Code39Reader.prototype._decode.apply(this); var result = Code39Reader.prototype._decode.apply(this);
if (!result) { if (!result) {
return null; return null;
@ -47,13 +39,11 @@ define(
result.code = code; result.code = code;
return result; return result;
}; };
Code39VINReader.prototype._checkChecksum = function(code) { Code39VINReader.prototype._checkChecksum = function(code) {
// TODO // TODO
return !!code; return !!code;
}; };
return (Code39VINReader); export default Code39VINReader;
}
);

17
src/config.js
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@ -1,10 +1,6 @@
/** export default {
* The basic configuration inputStream: {
*/ name: "Live",
define(function(){
var config = {
inputStream: { name: "Live",
type: "LiveStream", type: "LiveStream",
constraints: { constraints: {
width: 640, width: 640,
@ -29,7 +25,7 @@ define(function(){
visual: { visual: {
show: true show: true
}, },
decoder:{ decoder: {
drawBoundingBox: false, drawBoundingBox: false,
showFrequency: false, showFrequency: false,
drawScanline: false, drawScanline: false,
@ -54,7 +50,4 @@ define(function(){
showBB: false showBB: false
} }
} }
}; };
return config;
});

158
src/cv_utils.js
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@ -1,29 +1,15 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import Cluster2 from './cluster';
/* global define */ import ArrayHelper from './array_helper';
import {vec2, vec3} from 'gl-matrix';
define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper, glMatrix) { var CVUtils = {};
"use strict"; /**
/*
* cv_utils.js
* Collection of CV functions and libraries
*/
/**
* Namespace for various CV alorithms
* @class Represents a collection of useful CV algorithms/functions
*/
var CVUtils = {},
vec2 = glMatrix.vec2,
vec3 = glMatrix.vec3;
/**
* @param x x-coordinate * @param x x-coordinate
* @param y y-coordinate * @param y y-coordinate
* @return ImageReference {x,y} Coordinate * @return ImageReference {x,y} Coordinate
*/ */
CVUtils.imageRef = function(x, y) { CVUtils.imageRef = function(x, y) {
var that = { var that = {
x : x, x : x,
y : y, y : y,
@ -40,13 +26,13 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
} }
}; };
return that; return that;
}; };
/** /**
* Computes an integral image of a given grayscale image. * Computes an integral image of a given grayscale image.
* @param imageDataContainer {ImageDataContainer} the image to be integrated * @param imageDataContainer {ImageDataContainer} the image to be integrated
*/ */
CVUtils.computeIntegralImage2 = function(imageWrapper, integralWrapper) { CVUtils.computeIntegralImage2 = function(imageWrapper, integralWrapper) {
var imageData = imageWrapper.data; var imageData = imageWrapper.data;
var width = imageWrapper.size.x; var width = imageWrapper.size.x;
var height = imageWrapper.size.y; var height = imageWrapper.size.y;
@ -86,9 +72,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
posD++; posD++;
} }
} }
}; };
CVUtils.computeIntegralImage = function(imageWrapper, integralWrapper) { CVUtils.computeIntegralImage = function(imageWrapper, integralWrapper) {
var imageData = imageWrapper.data; var imageData = imageWrapper.data;
var width = imageWrapper.size.x; var width = imageWrapper.size.x;
var height = imageWrapper.size.y; var height = imageWrapper.size.y;
@ -108,9 +94,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
integralImageData[((v) * width) + u] = sum + integralImageData[(v - 1) * width + u]; integralImageData[((v) * width) + u] = sum + integralImageData[(v - 1) * width + u];
} }
} }
}; };
CVUtils.thresholdImage = function(imageWrapper, threshold, targetWrapper) { CVUtils.thresholdImage = function(imageWrapper, threshold, targetWrapper) {
if (!targetWrapper) { if (!targetWrapper) {
targetWrapper = imageWrapper; targetWrapper = imageWrapper;
} }
@ -119,9 +105,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
while (length--) { while (length--) {
targetData[length] = imageData[length] < threshold ? 1 : 0; targetData[length] = imageData[length] < threshold ? 1 : 0;
} }
}; };
CVUtils.computeHistogram = function(imageWrapper, bitsPerPixel) { CVUtils.computeHistogram = function(imageWrapper, bitsPerPixel) {
if (!bitsPerPixel) { if (!bitsPerPixel) {
bitsPerPixel = 8; bitsPerPixel = 8;
} }
@ -135,9 +121,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
hist[imageData[length] >> bitShift]++; hist[imageData[length] >> bitShift]++;
} }
return hist; return hist;
}; };
CVUtils.sharpenLine = function(line) { CVUtils.sharpenLine = function(line) {
var i, var i,
length = line.length, length = line.length,
left = line[0], left = line[0],
@ -152,9 +138,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
center = right; center = right;
} }
return line; return line;
}; };
CVUtils.determineOtsuThreshold = function(imageWrapper, bitsPerPixel) { CVUtils.determineOtsuThreshold = function(imageWrapper, bitsPerPixel) {
if (!bitsPerPixel) { if (!bitsPerPixel) {
bitsPerPixel = 8; bitsPerPixel = 8;
} }
@ -202,17 +188,17 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
threshold = determineThreshold(); threshold = determineThreshold();
return threshold << bitShift; return threshold << bitShift;
}; };
CVUtils.otsuThreshold = function(imageWrapper, targetWrapper) { CVUtils.otsuThreshold = function(imageWrapper, targetWrapper) {
var threshold = CVUtils.determineOtsuThreshold(imageWrapper); var threshold = CVUtils.determineOtsuThreshold(imageWrapper);
CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper); CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper);
return threshold; return threshold;
}; };
// local thresholding // local thresholding
CVUtils.computeBinaryImage = function(imageWrapper, integralWrapper, targetWrapper) { CVUtils.computeBinaryImage = function(imageWrapper, integralWrapper, targetWrapper) {
CVUtils.computeIntegralImage(imageWrapper, integralWrapper); CVUtils.computeIntegralImage(imageWrapper, integralWrapper);
if (!targetWrapper) { if (!targetWrapper) {
@ -252,9 +238,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
targetData[v * width + u] = imageData[v * width + u] > (avg + 5) ? 0 : 1; targetData[v * width + u] = imageData[v * width + u] > (avg + 5) ? 0 : 1;
} }
} }
}; };
CVUtils.cluster = function(points, threshold, property) { CVUtils.cluster = function(points, threshold, property) {
var i, k, cluster, point, clusters = []; var i, k, cluster, point, clusters = [];
if (!property) { if (!property) {
@ -283,9 +269,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
return clusters; return clusters;
}; };
CVUtils.Tracer = { CVUtils.Tracer = {
trace : function(points, vec) { trace : function(points, vec) {
var iteration, maxIterations = 10, top = [], result = [], centerPos = 0, currentPos = 0; var iteration, maxIterations = 10, top = [], result = [], centerPos = 0, currentPos = 0;
@ -352,12 +338,12 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
return result; return result;
} }
}; };
CVUtils.DILATE = 1; CVUtils.DILATE = 1;
CVUtils.ERODE = 2; CVUtils.ERODE = 2;
CVUtils.dilate = function(inImageWrapper, outImageWrapper) { CVUtils.dilate = function(inImageWrapper, outImageWrapper) {
var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2; var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2;
for ( v = 1; v < height - 1; v++) { for ( v = 1; v < height - 1; v++) {
@ -373,9 +359,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
outImageData[v * width + u] = sum > 0 ? 1 : 0; outImageData[v * width + u] = sum > 0 ? 1 : 0;
} }
} }
}; };
CVUtils.erode = function(inImageWrapper, outImageWrapper) { CVUtils.erode = function(inImageWrapper, outImageWrapper) {
var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2; var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2;
for ( v = 1; v < height - 1; v++) { for ( v = 1; v < height - 1; v++) {
@ -391,9 +377,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
outImageData[v * width + u] = sum === 5 ? 1 : 0; outImageData[v * width + u] = sum === 5 ? 1 : 0;
} }
} }
}; };
CVUtils.subtract = function(aImageWrapper, bImageWrapper, resultImageWrapper) { CVUtils.subtract = function(aImageWrapper, bImageWrapper, resultImageWrapper) {
if (!resultImageWrapper) { if (!resultImageWrapper) {
resultImageWrapper = aImageWrapper; resultImageWrapper = aImageWrapper;
} }
@ -402,9 +388,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
while (length--) { while (length--) {
cImageData[length] = aImageData[length] - bImageData[length]; cImageData[length] = aImageData[length] - bImageData[length];
} }
}; };
CVUtils.bitwiseOr = function(aImageWrapper, bImageWrapper, resultImageWrapper) { CVUtils.bitwiseOr = function(aImageWrapper, bImageWrapper, resultImageWrapper) {
if (!resultImageWrapper) { if (!resultImageWrapper) {
resultImageWrapper = aImageWrapper; resultImageWrapper = aImageWrapper;
} }
@ -413,18 +399,18 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
while (length--) { while (length--) {
cImageData[length] = aImageData[length] || bImageData[length]; cImageData[length] = aImageData[length] || bImageData[length];
} }
}; };
CVUtils.countNonZero = function(imageWrapper) { CVUtils.countNonZero = function(imageWrapper) {
var length = imageWrapper.data.length, data = imageWrapper.data, sum = 0; var length = imageWrapper.data.length, data = imageWrapper.data, sum = 0;
while (length--) { while (length--) {
sum += data[length]; sum += data[length];
} }
return sum; return sum;
}; };
CVUtils.topGeneric = function(list, top, scoreFunc) { CVUtils.topGeneric = function(list, top, scoreFunc) {
var i, minIdx = 0, min = 0, queue = [], score, hit, pos; var i, minIdx = 0, min = 0, queue = [], score, hit, pos;
for ( i = 0; i < top; i++) { for ( i = 0; i < top; i++) {
@ -451,20 +437,20 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
} }
return queue; return queue;
}; };
CVUtils.grayArrayFromImage = function(htmlImage, offsetX, ctx, array) { CVUtils.grayArrayFromImage = function(htmlImage, offsetX, ctx, array) {
ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height); ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height);
var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data; var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data;
CVUtils.computeGray(ctxData, array); CVUtils.computeGray(ctxData, array);
}; };
CVUtils.grayArrayFromContext = function(ctx, size, offset, array) { CVUtils.grayArrayFromContext = function(ctx, size, offset, array) {
var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data; var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data;
CVUtils.computeGray(ctxData, array); CVUtils.computeGray(ctxData, array);
}; };
CVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) { CVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) {
var topRowIdx = 0; var topRowIdx = 0;
var bottomRowIdx = size.x; var bottomRowIdx = size.x;
var endIdx = Math.floor(canvasData.length / 4); var endIdx = Math.floor(canvasData.length / 4);
@ -484,9 +470,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
bottomRowIdx = bottomRowIdx + inWidth; bottomRowIdx = bottomRowIdx + inWidth;
} }
}; };
CVUtils.computeGray = function(imageData, outArray, config) { CVUtils.computeGray = function(imageData, outArray, config) {
var l = (imageData.length / 4) | 0, var l = (imageData.length / 4) | 0,
i, i,
singleChannel = config && config.singleChannel === true; singleChannel = config && config.singleChannel === true;
@ -500,9 +486,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]); outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]);
} }
} }
}; };
CVUtils.loadImageArray = function(src, callback, canvas) { CVUtils.loadImageArray = function(src, callback, canvas) {
if (!canvas) if (!canvas)
canvas = document.createElement('canvas'); canvas = document.createElement('canvas');
var img = new Image(); var img = new Image();
@ -522,13 +508,13 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
}, this); }, this);
}; };
img.src = src; img.src = src;
}; };
/** /**
* @param inImg {ImageWrapper} input image to be sampled * @param inImg {ImageWrapper} input image to be sampled
* @param outImg {ImageWrapper} to be stored in * @param outImg {ImageWrapper} to be stored in
*/ */
CVUtils.halfSample = function(inImgWrapper, outImgWrapper) { CVUtils.halfSample = function(inImgWrapper, outImgWrapper) {
var inImg = inImgWrapper.data; var inImg = inImgWrapper.data;
var inWidth = inImgWrapper.size.x; var inWidth = inImgWrapper.size.x;
var outImg = outImgWrapper.data; var outImg = outImgWrapper.data;
@ -547,9 +533,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
topRowIdx = topRowIdx + inWidth; topRowIdx = topRowIdx + inWidth;
bottomRowIdx = bottomRowIdx + inWidth; bottomRowIdx = bottomRowIdx + inWidth;
} }
}; };
CVUtils.hsv2rgb = function(hsv, rgb) { CVUtils.hsv2rgb = function(hsv, rgb) {
var h = hsv[0], s = hsv[1], v = hsv[2], c = v * s, x = c * (1 - Math.abs((h / 60) % 2 - 1)), m = v - c, r = 0, g = 0, b = 0; var h = hsv[0], s = hsv[1], v = hsv[2], c = v * s, x = c * (1 - Math.abs((h / 60) % 2 - 1)), m = v - c, r = 0, g = 0, b = 0;
rgb = rgb || [0, 0, 0]; rgb = rgb || [0, 0, 0];
@ -576,9 +562,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
rgb[1] = ((g + m) * 255) | 0; rgb[1] = ((g + m) * 255) | 0;
rgb[2] = ((b + m) * 255) | 0; rgb[2] = ((b + m) * 255) | 0;
return rgb; return rgb;
}; };
CVUtils._computeDivisors = function(n) { CVUtils._computeDivisors = function(n) {
var largeDivisors = [], var largeDivisors = [],
divisors = [], divisors = [],
i; i;
@ -592,9 +578,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
} }
} }
return divisors.concat(largeDivisors); return divisors.concat(largeDivisors);
}; };
CVUtils._computeIntersection = function(arr1, arr2) { CVUtils._computeIntersection = function(arr1, arr2) {
var i = 0, var i = 0,
j = 0, j = 0,
result = []; result = [];
@ -611,9 +597,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
} }
} }
return result; return result;
}; };
CVUtils.calculatePatchSize = function(patchSize, imgSize) { CVUtils.calculatePatchSize = function(patchSize, imgSize) {
var divisorsX = this._computeDivisors(imgSize.x), var divisorsX = this._computeDivisors(imgSize.x),
divisorsY = this._computeDivisors(imgSize.y), divisorsY = this._computeDivisors(imgSize.y),
wideSide = Math.max(imgSize.x, imgSize.y), wideSide = Math.max(imgSize.x, imgSize.y),
@ -660,18 +646,18 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
} }
} }
return optimalPatchSize; return optimalPatchSize;
}; };
CVUtils._parseCSSDimensionValues = function(value) { CVUtils._parseCSSDimensionValues = function(value) {
var dimension = { var dimension = {
value: parseFloat(value), value: parseFloat(value),
unit: value.indexOf("%") === value.length-1 ? "%" : "%" unit: value.indexOf("%") === value.length-1 ? "%" : "%"
}; };
return dimension; return dimension;
}; };
CVUtils._dimensionsConverters = { CVUtils._dimensionsConverters = {
top: function(dimension, context) { top: function(dimension, context) {
if (dimension.unit === "%") { if (dimension.unit === "%") {
return Math.floor(context.height * (dimension.value / 100)); return Math.floor(context.height * (dimension.value / 100));
@ -692,9 +678,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
return Math.floor(context.width * (dimension.value / 100)); return Math.floor(context.width * (dimension.value / 100));
} }
} }
}; };
CVUtils.computeImageArea = function(inputWidth, inputHeight, area) { CVUtils.computeImageArea = function(inputWidth, inputHeight, area) {
var context = {width: inputWidth, height: inputHeight}; var context = {width: inputWidth, height: inputHeight};
var parsedArea = Object.keys(area).reduce(function(result, key) { var parsedArea = Object.keys(area).reduce(function(result, key) {
@ -712,8 +698,6 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
sw: parsedArea.right - parsedArea.left, sw: parsedArea.right - parsedArea.left,
sh: parsedArea.bottom - parsedArea.top sh: parsedArea.bottom - parsedArea.top
}; };
}; };
return (CVUtils);
});
export default CVUtils;

30
src/ean_8_reader.js
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@ -1,25 +1,17 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import EANReader from './ean_reader';
/* global define */
define( function EAN8Reader() {
[
"./ean_reader"
],
function(EANReader) {
"use strict";
function EAN8Reader() {
EANReader.call(this); EANReader.call(this);
} }
var properties = { var properties = {
FORMAT: {value: "ean_8", writeable: false} FORMAT: {value: "ean_8", writeable: false}
}; };
EAN8Reader.prototype = Object.create(EANReader.prototype, properties); EAN8Reader.prototype = Object.create(EANReader.prototype, properties);
EAN8Reader.prototype.constructor = EAN8Reader; EAN8Reader.prototype.constructor = EAN8Reader;
EAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) { EAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) {
var i, var i,
self = this; self = this;
@ -48,8 +40,6 @@ define(
} }
return code; return code;
}; };
return (EAN8Reader); export default EAN8Reader;
}
);

62
src/ean_reader.js
Unescape Escape View File

@ -1,18 +1,10 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import BarcodeReader from './barcode_reader';
/* global define */
define( function EANReader(opts) {
[
"./barcode_reader"
],
function(BarcodeReader) {
"use strict";
function EANReader(opts) {
BarcodeReader.call(this, opts); BarcodeReader.call(this, opts);
} }
var properties = { var properties = {
CODE_L_START : {value: 0}, CODE_L_START : {value: 0},
MODULO : {value: 7}, MODULO : {value: 7},
CODE_G_START : {value: 10}, CODE_G_START : {value: 10},
@ -45,12 +37,12 @@ define(
SINGLE_CODE_ERROR: {value: 0.67}, SINGLE_CODE_ERROR: {value: 0.67},
AVG_CODE_ERROR: {value: 0.27}, AVG_CODE_ERROR: {value: 0.27},
FORMAT: {value: "ean_13", writeable: false} FORMAT: {value: "ean_13", writeable: false}
}; };
EANReader.prototype = Object.create(BarcodeReader.prototype, properties); EANReader.prototype = Object.create(BarcodeReader.prototype, properties);
EANReader.prototype.constructor = EANReader; EANReader.prototype.constructor = EANReader;
EANReader.prototype._decodeCode = function(start, coderange) { EANReader.prototype._decodeCode = function(start, coderange) {
var counter = [0, 0, 0, 0], var counter = [0, 0, 0, 0],
i, i,
self = this, self = this,
@ -99,9 +91,9 @@ define(
} }
} }
return null; return null;
}; };
EANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) { EANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) {
var counter = [], var counter = [],
self = this, self = this,
i, i,
@ -175,9 +167,9 @@ define(
} }
} }
return null; return null;
}; };
EANReader.prototype._findStart = function() { EANReader.prototype._findStart = function() {
var self = this, var self = this,
leadingWhitespaceStart, leadingWhitespaceStart,
offset = self._nextSet(self._row), offset = self._nextSet(self._row),
@ -197,9 +189,9 @@ define(
offset = startInfo.end; offset = startInfo.end;
startInfo = null; startInfo = null;
} }
}; };
EANReader.prototype._verifyTrailingWhitespace = function(endInfo) { EANReader.prototype._verifyTrailingWhitespace = function(endInfo) {
var self = this, var self = this,
trailingWhitespaceEnd; trailingWhitespaceEnd;
@ -210,16 +202,16 @@ define(
} }
} }
return null; return null;
}; };
EANReader.prototype._findEnd = function(offset, isWhite) { EANReader.prototype._findEnd = function(offset, isWhite) {
var self = this, var self = this,
endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false); endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false);
return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;
}; };
EANReader.prototype._calculateFirstDigit = function(codeFrequency) { EANReader.prototype._calculateFirstDigit = function(codeFrequency) {
var i, var i,
self = this; self = this;
@ -229,9 +221,9 @@ define(
} }
} }
return null; return null;
}; };
EANReader.prototype._decodePayload = function(code, result, decodedCodes) { EANReader.prototype._decodePayload = function(code, result, decodedCodes) {
var i, var i,
self = this, self = this,
codeFrequency = 0x0, codeFrequency = 0x0,
@ -274,9 +266,9 @@ define(
} }
return code; return code;
}; };
EANReader.prototype._decode = function() { EANReader.prototype._decode = function() {
var startInfo, var startInfo,
self = this, self = this,
code, code,
@ -317,9 +309,9 @@ define(
startInfo : startInfo, startInfo : startInfo,
decodedCodes : decodedCodes decodedCodes : decodedCodes
}; };
}; };
EANReader.prototype._checksum = function(result) { EANReader.prototype._checksum = function(result) {
var sum = 0, i; var sum = 0, i;
for ( i = result.length - 2; i >= 0; i -= 2) { for ( i = result.length - 2; i >= 0; i -= 2) {
@ -330,8 +322,6 @@ define(
sum += result[i]; sum += result[i];
} }
return sum % 10 === 0; return sum % 10 === 0;
}; };
return (EANReader); export default (EANReader);
}
);

13
src/events.js
Unescape Escape View File

@ -1,10 +1,4 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ export default function() {
/* global define */
define(function() {
"use strict";
var _events = function() {
var events = {}; var events = {};
function getEvent(eventName) { function getEvent(eventName) {
@ -85,7 +79,4 @@ define(function() {
} }
} }
}; };
}(); }();
return _events;
});

15
src/frame_grabber.js
Unescape Escape View File

@ -1,12 +1,8 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import CVUtils from './cv_utils';
/* global define */
define(["cv_utils"], function(CVUtils) { var FrameGrabber = {};
"use strict";
var FrameGrabber = {}; FrameGrabber.create = function(inputStream, canvas) {
FrameGrabber.create = function(inputStream, canvas) {
var _that = {}, var _that = {},
_streamConfig = inputStream.getConfig(), _streamConfig = inputStream.getConfig(),
_video_size = CVUtils.imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()), _video_size = CVUtils.imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()),
@ -72,7 +68,6 @@ define(["cv_utils"], function(CVUtils) {
}; };
return _that; return _that;
}; };
return (FrameGrabber); export default FrameGrabber;
});

40
src/html_utils.js
Unescape Escape View File

@ -1,40 +0,0 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
define([], 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);
}
};
});

80
src/i2of5_reader.js
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@ -1,34 +1,26 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import BarcodeReader from './barcode_reader';
/* global define */ const merge = require('lodash/object/merge');
define( function I2of5Reader(opts) {
[ opts = merge(getDefaulConfig(), opts);
"./barcode_reader",
"./html_utils"
],
function(BarcodeReader, HTMLUtils) {
"use strict";
function I2of5Reader(opts) {
opts = HTMLUtils.mergeObjects(getDefaulConfig(), opts);
BarcodeReader.call(this, opts); BarcodeReader.call(this, opts);
this.barSpaceRatio = [1, 1]; this.barSpaceRatio = [1, 1];
if (opts.normalizeBarSpaceWidth) { if (opts.normalizeBarSpaceWidth) {
this.SINGLE_CODE_ERROR = 0.38; this.SINGLE_CODE_ERROR = 0.38;
this.AVG_CODE_ERROR = 0.09; this.AVG_CODE_ERROR = 0.09;
} }
} }
function getDefaulConfig() { function getDefaulConfig() {
var config = {}; var config = {};
Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) { Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) {
config[key] = I2of5Reader.CONFIG_KEYS[key]['default']; config[key] = I2of5Reader.CONFIG_KEYS[key]['default'];
}); });
return config; return config;
} }
var N = 1, var N = 1,
W = 3, W = 3,
properties = { properties = {
MODULO : {value: 10}, MODULO : {value: 10},
@ -50,12 +42,12 @@ define(
AVG_CODE_ERROR: {value: 0.38, writable: true}, AVG_CODE_ERROR: {value: 0.38, writable: true},
MAX_CORRECTION_FACTOR: {value: 5}, MAX_CORRECTION_FACTOR: {value: 5},
FORMAT: {value: "i2of5"} FORMAT: {value: "i2of5"}
}; };
I2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties); I2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties);
I2of5Reader.prototype.constructor = I2of5Reader; I2of5Reader.prototype.constructor = I2of5Reader;
I2of5Reader.prototype._matchPattern = function(counter, code) { I2of5Reader.prototype._matchPattern = function(counter, code) {
if (this.config.normalizeBarSpaceWidth) { if (this.config.normalizeBarSpaceWidth) {
var i, var i,
counterSum = [0, 0], counterSum = [0, 0],
@ -79,9 +71,9 @@ define(
} }
} }
return BarcodeReader.prototype._matchPattern.call(this, counter, code); return BarcodeReader.prototype._matchPattern.call(this, counter, code);
}; };
I2of5Reader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder) { I2of5Reader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder) {
var counter = [], var counter = [],
self = this, self = this,
i, i,
@ -147,9 +139,9 @@ define(
} }
} }
return null; return null;
}; };
I2of5Reader.prototype._findStart = function() { I2of5Reader.prototype._findStart = function() {
var self = this, var self = this,
leadingWhitespaceStart, leadingWhitespaceStart,
offset = self._nextSet(self._row), offset = self._nextSet(self._row),
@ -171,9 +163,9 @@ define(
offset = startInfo.end; offset = startInfo.end;
startInfo = null; startInfo = null;
} }
}; };
I2of5Reader.prototype._verifyTrailingWhitespace = function(endInfo) { I2of5Reader.prototype._verifyTrailingWhitespace = function(endInfo) {
var self = this, var self = this,
trailingWhitespaceEnd; trailingWhitespaceEnd;
@ -184,9 +176,9 @@ define(
} }
} }
return null; return null;
}; };
I2of5Reader.prototype._findEnd = function() { I2of5Reader.prototype._findEnd = function() {
var self = this, var self = this,
endInfo, endInfo,
tmp; tmp;
@ -205,9 +197,9 @@ define(
endInfo.end = self._row.length - tmp; endInfo.end = self._row.length - tmp;
return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;
}; };
I2of5Reader.prototype._decodePair = function(counterPair) { I2of5Reader.prototype._decodePair = function(counterPair) {
var i, var i,
code, code,
codes = [], codes = [],
@ -221,9 +213,9 @@ define(
codes.push(code); codes.push(code);
} }
return codes; return codes;
}; };
I2of5Reader.prototype._decodeCode = function(counter) { I2of5Reader.prototype._decodeCode = function(counter) {
var j, var j,
self = this, self = this,
sum = 0, sum = 0,
@ -255,9 +247,9 @@ define(
} }
} }
return null; return null;
}; };
I2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) { I2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) {
var i, var i,
self = this, self = this,
pos = 0, pos = 0,
@ -281,13 +273,13 @@ define(
} }
} }
return codes; return codes;
}; };
I2of5Reader.prototype._verifyCounterLength = function(counters) { I2of5Reader.prototype._verifyCounterLength = function(counters) {
return (counters.length % 10 === 0); return (counters.length % 10 === 0);
}; };
I2of5Reader.prototype._decode = function() { I2of5Reader.prototype._decode = function() {
var startInfo, var startInfo,
endInfo, endInfo,
self = this, self = this,
@ -328,17 +320,15 @@ define(
startInfo : startInfo, startInfo : startInfo,
decodedCodes : decodedCodes decodedCodes : decodedCodes
}; };
}; };
I2of5Reader.CONFIG_KEYS = { I2of5Reader.CONFIG_KEYS = {
normalizeBarSpaceWidth: { normalizeBarSpaceWidth: {
'type': 'boolean', 'type': 'boolean',
'default': false, 'default': false,
'description': 'If true, the reader tries to normalize the' + 'description': 'If true, the reader tries to normalize the' +
'width-difference between bars and spaces' 'width-difference between bars and spaces'
} }
}; };
return (I2of5Reader); export default I2of5Reader;
}
);

12
src/image_debug.js
Unescape Escape View File

@ -1,10 +1,4 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ export default {
/* global define */
define(function() {
"use strict";
return {
drawRect: function(pos, size, ctx, style){ drawRect: function(pos, size, ctx, style){
ctx.strokeStyle = style.color; ctx.strokeStyle = style.color;
ctx.fillStyle = style.color; ctx.fillStyle = style.color;
@ -44,6 +38,4 @@ define(function() {
ctx.putImageData(canvasData, 0, 0); ctx.putImageData(canvasData, 0, 0);
return true; return true;
} }
}; };
});

19
src/image_loader.js
Unescape Escape View File

@ -1,11 +1,5 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ var ImageLoader = {};
/* global define */ ImageLoader.load = function(directory, callback, offset, size, sequence) {
define(function() {
"use strict";
var ImageLoader = {};
ImageLoader.load = function(directory, callback, offset, size, sequence) {
var htmlImagesSrcArray = new Array(size), var htmlImagesSrcArray = new Array(size),
htmlImagesArray = new Array(htmlImagesSrcArray.length), htmlImagesArray = new Array(htmlImagesSrcArray.length),
i, i,
@ -51,13 +45,12 @@ define(function() {
addOnloadHandler(img, htmlImagesArray); addOnloadHandler(img, htmlImagesArray);
img.src = htmlImagesSrcArray[i]; img.src = htmlImagesSrcArray[i];
} }
}; };
function addOnloadHandler(img, htmlImagesArray) { function addOnloadHandler(img, htmlImagesArray) {
img.onload = function() { img.onload = function() {
htmlImagesArray.loaded(this); htmlImagesArray.loaded(this);
}; };
} }
return (ImageLoader); export default (ImageLoader);
});

119
src/image_wrapper.js
Unescape Escape View File

@ -1,19 +1,9 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import SubImage from './subImage';
/* global define */ import CVUtils from './cv_utils';
import ArrayHelper from './array_helper';
define([ import {vec2, mat2} from 'gl-matrix';
"subImage",
"cv_utils", /**
"array_helper",
"gl-matrix"
],
function(SubImage, CVUtils, ArrayHelper, glMatrix) {
'use strict';
var vec2 = glMatrix.vec2,
mat2 = glMatrix.mat2;
/**
* Represents a basic image combining the data and size. * Represents a basic image combining the data and size.
* In addition, some methods for manipulation are contained. * In addition, some methods for manipulation are contained.
* @param size {x,y} The size of the image in pixel * @param size {x,y} The size of the image in pixel
@ -22,7 +12,7 @@ define([
* @param initialize {Boolean} Indicating if the array should be initialized on creation. * @param initialize {Boolean} Indicating if the array should be initialized on creation.
* @returns {ImageWrapper} * @returns {ImageWrapper}
*/ */
function ImageWrapper(size, data, ArrayType, initialize) { function ImageWrapper(size, data, ArrayType, initialize) {
if (!data) { if (!data) {
if (ArrayType) { if (ArrayType) {
this.data = new ArrayType(size.x * size.y); this.data = new ArrayType(size.x * size.y);
@ -40,20 +30,20 @@ define([
this.data = data; this.data = data;
} }
this.size = size; this.size = size;
} }
/** /**
* tests if a position is within the image with a given offset * tests if a position is within the image with a given offset
* @param imgRef {x, y} The location to test * @param imgRef {x, y} The location to test
* @param border Number the padding value in pixel * @param border Number the padding value in pixel
* @returns {Boolean} true if location inside the image's border, false otherwise * @returns {Boolean} true if location inside the image's border, false otherwise
* @see cvd/image.h * @see cvd/image.h
*/ */
ImageWrapper.prototype.inImageWithBorder = function(imgRef, border) { ImageWrapper.prototype.inImageWithBorder = function(imgRef, border) {
return (imgRef.x >= border) && (imgRef.y >= border) && (imgRef.x < (this.size.x - border)) && (imgRef.y < (this.size.y - border)); return (imgRef.x >= border) && (imgRef.y >= border) && (imgRef.x < (this.size.x - border)) && (imgRef.y < (this.size.y - border));
}; };
/** /**
* Transforms an image according to the given affine-transformation matrix. * Transforms an image according to the given affine-transformation matrix.
* @param inImg ImageWrapper a image containing the information to be extracted. * @param inImg ImageWrapper a image containing the information to be extracted.
* @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image. * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image.
@ -63,7 +53,7 @@ define([
* @returns Number the number of pixels not in the in image * @returns Number the number of pixels not in the in image
* @see cvd/vision.h * @see cvd/vision.h
*/ */
ImageWrapper.transform = function(inImg, outImg, M, inOrig, outOrig) { ImageWrapper.transform = function(inImg, outImg, M, inOrig, outOrig) {
var w = outImg.size.x, h = outImg.size.y, iw = inImg.size.x, ih = inImg.size.y; var w = outImg.size.x, h = outImg.size.y, iw = inImg.size.x, ih = inImg.size.y;
var across = vec2.clone([M[0], M[2]]); var across = vec2.clone([M[0], M[2]]);
var down = vec2.clone([M[1], M[3]]); var down = vec2.clone([M[1], M[3]]);
@ -121,9 +111,9 @@ define([
} }
return count; return count;
} }
}; };
/** /**
* Performs bilinear sampling * Performs bilinear sampling
* @param inImg Image to extract sample from * @param inImg Image to extract sample from
* @param x the x-coordinate * @param x the x-coordinate
@ -131,7 +121,7 @@ define([
* @returns the sampled value * @returns the sampled value
* @see cvd/vision.h * @see cvd/vision.h
*/ */
ImageWrapper.sample = function(inImg, x, y) { ImageWrapper.sample = function(inImg, x, y) {
var lx = Math.floor(x); var lx = Math.floor(x);
var ly = Math.floor(y); var ly = Math.floor(y);
var w = inImg.size.x; var w = inImg.size.x;
@ -146,35 +136,35 @@ define([
var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a); var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a);
return result; return result;
}; };
/** /**
* Initializes a given array. Sets each element to zero. * Initializes a given array. Sets each element to zero.
* @param array {Array} The array to initialize * @param array {Array} The array to initialize
*/ */
ImageWrapper.clearArray = function(array) { ImageWrapper.clearArray = function(array) {
var l = array.length; var l = array.length;
while (l--) { while (l--) {
array[l] = 0; array[l] = 0;
} }
}; };
/** /**
* Creates a {SubImage} from the current image ({this}). * Creates a {SubImage} from the current image ({this}).
* @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)
* @param size {ImageRef} The size of the resulting image * @param size {ImageRef} The size of the resulting image
* @returns {SubImage} A shared part of the original image * @returns {SubImage} A shared part of the original image
*/ */
ImageWrapper.prototype.subImage = function(from, size) { ImageWrapper.prototype.subImage = function(from, size) {
return new SubImage(from, size, this); return new SubImage(from, size, this);
}; };
/** /**
* Creates an {ImageWrapper) and copies the needed underlying image-data area * Creates an {ImageWrapper) and copies the needed underlying image-data area
* @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied
* @param from {ImageRef} The location where to copy from (top-left location) * @param from {ImageRef} The location where to copy from (top-left location)
*/ */
ImageWrapper.prototype.subImageAsCopy = function(imageWrapper, from) { ImageWrapper.prototype.subImageAsCopy = function(imageWrapper, from) {
var sizeY = imageWrapper.size.y, sizeX = imageWrapper.size.x; var sizeY = imageWrapper.size.y, sizeX = imageWrapper.size.x;
var x, y; var x, y;
for ( x = 0; x < sizeX; x++) { for ( x = 0; x < sizeX; x++) {
@ -182,33 +172,33 @@ define([
imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x]; imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x];
} }
} }
}; };
ImageWrapper.prototype.copyTo = function(imageWrapper) { ImageWrapper.prototype.copyTo = function(imageWrapper) {
var length = this.data.length, srcData = this.data, dstData = imageWrapper.data; var length = this.data.length, srcData = this.data, dstData = imageWrapper.data;
while (length--) { while (length--) {
dstData[length] = srcData[length]; dstData[length] = srcData[length];
} }
}; };
/** /**
* Retrieves a given pixel position from the image * Retrieves a given pixel position from the image
* @param x {Number} The x-position * @param x {Number} The x-position
* @param y {Number} The y-position * @param y {Number} The y-position
* @returns {Number} The grayscale value at the pixel-position * @returns {Number} The grayscale value at the pixel-position
*/ */
ImageWrapper.prototype.get = function(x, y) { ImageWrapper.prototype.get = function(x, y) {
return this.data[y * this.size.x + x]; return this.data[y * this.size.x + x];
}; };
/** /**
* Retrieves a given pixel position from the image * Retrieves a given pixel position from the image
* @param x {Number} The x-position * @param x {Number} The x-position
* @param y {Number} The y-position * @param y {Number} The y-position
* @returns {Number} The grayscale value at the pixel-position * @returns {Number} The grayscale value at the pixel-position
*/ */
ImageWrapper.prototype.getSafe = function(x, y) { ImageWrapper.prototype.getSafe = function(x, y) {
var i; var i;
if (!this.indexMapping) { if (!this.indexMapping) {
@ -226,24 +216,24 @@ define([
} }
} }
return this.data[(this.indexMapping.y[y + this.size.y]) * this.size.x + this.indexMapping.x[x + this.size.x]]; return this.data[(this.indexMapping.y[y + this.size.y]) * this.size.x + this.indexMapping.x[x + this.size.x]];
}; };
/** /**
* Sets a given pixel position in the image * Sets a given pixel position in the image
* @param x {Number} The x-position * @param x {Number} The x-position
* @param y {Number} The y-position * @param y {Number} The y-position
* @param value {Number} The grayscale value to set * @param value {Number} The grayscale value to set
* @returns {ImageWrapper} The Image itself (for possible chaining) * @returns {ImageWrapper} The Image itself (for possible chaining)
*/ */
ImageWrapper.prototype.set = function(x, y, value) { ImageWrapper.prototype.set = function(x, y, value) {
this.data[y * this.size.x + x] = value; this.data[y * this.size.x + x] = value;
return this; return this;
}; };
/** /**
* Sets the border of the image (1 pixel) to zero * Sets the border of the image (1 pixel) to zero
*/ */
ImageWrapper.prototype.zeroBorder = function() { ImageWrapper.prototype.zeroBorder = function() {
var i, width = this.size.x, height = this.size.y, data = this.data; var i, width = this.size.x, height = this.size.y, data = this.data;
for ( i = 0; i < width; i++) { for ( i = 0; i < width; i++) {
data[i] = data[(height - 1) * width + i] = 0; data[i] = data[(height - 1) * width + i] = 0;
@ -251,21 +241,21 @@ define([
for ( i = 1; i < height - 1; i++) { for ( i = 1; i < height - 1; i++) {
data[i * width] = data[i * width + (width - 1)] = 0; data[i * width] = data[i * width + (width - 1)] = 0;
} }
}; };
/** /**
* Inverts a binary image in place * Inverts a binary image in place
*/ */
ImageWrapper.prototype.invert = function() { ImageWrapper.prototype.invert = function() {
var data = this.data, length = data.length; var data = this.data, length = data.length;
while (length--) { while (length--) {
data[length] = data[length] ? 0 : 1; data[length] = data[length] ? 0 : 1;
} }
}; };
ImageWrapper.prototype.convolve = function(kernel) { ImageWrapper.prototype.convolve = function(kernel) {
var x, y, kx, ky, kSize = (kernel.length / 2) | 0, accu = 0; var x, y, kx, ky, kSize = (kernel.length / 2) | 0, accu = 0;
for ( y = 0; y < this.size.y; y++) { for ( y = 0; y < this.size.y; y++) {
for ( x = 0; x < this.size.x; x++) { for ( x = 0; x < this.size.x; x++) {
@ -278,9 +268,9 @@ define([
this.data[y * this.size.x + x] = accu; this.data[y * this.size.x + x] = accu;
} }
} }
}; };
ImageWrapper.prototype.moments = function(labelcount) { ImageWrapper.prototype.moments = function(labelcount) {
var data = this.data, var data = this.data,
x, x,
y, y,
@ -355,14 +345,14 @@ define([
} }
return result; return result;
}; };
/** /**
* Displays the {ImageWrapper} in a given canvas * Displays the {ImageWrapper} in a given canvas
* @param canvas {Canvas} The canvas element to write to * @param canvas {Canvas} The canvas element to write to
* @param scale {Number} Scale which is applied to each pixel-value * @param scale {Number} Scale which is applied to each pixel-value
*/ */
ImageWrapper.prototype.show = function(canvas, scale) { ImageWrapper.prototype.show = function(canvas, scale) {
var ctx, var ctx,
frame, frame,
data, data,
@ -392,14 +382,14 @@ define([
} }
//frame.data = data; //frame.data = data;
ctx.putImageData(frame, 0, 0); ctx.putImageData(frame, 0, 0);
}; };
/** /**
* Displays the {SubImage} in a given canvas * Displays the {SubImage} in a given canvas
* @param canvas {Canvas} The canvas element to write to * @param canvas {Canvas} The canvas element to write to
* @param scale {Number} Scale which is applied to each pixel-value * @param scale {Number} Scale which is applied to each pixel-value
*/ */
ImageWrapper.prototype.overlay = function(canvas, scale, from) { ImageWrapper.prototype.overlay = function(canvas, scale, from) {
if (!scale || scale < 0 || scale > 360) { if (!scale || scale < 0 || scale > 360) {
scale = 360; scale = 360;
} }
@ -421,7 +411,6 @@ define([
data[length * 4 + 3] = 255; data[length * 4 + 3] = 255;
} }
ctx.putImageData(frame, from.x, from.y); ctx.putImageData(frame, from.x, from.y);
}; };
return (ImageWrapper); export default ImageWrapper;
});

23
src/input_stream.js
Unescape Escape View File

@ -1,11 +1,7 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import ImageLoader from './image_loader';
/* global define */
define(["image_loader"], function(ImageLoader) { var InputStream = {};
"use strict"; InputStream.createVideoStream = function(video) {
var InputStream = {};
InputStream.createVideoStream = function(video) {
var that = {}, var that = {},
_config = null, _config = null,
_eventNames = ['canrecord', 'ended'], _eventNames = ['canrecord', 'ended'],
@ -139,9 +135,9 @@ define(["image_loader"], function(ImageLoader) {
}; };
return that; return that;
}; };
InputStream.createLiveStream = function(video) { InputStream.createLiveStream = function(video) {
video.setAttribute("autoplay", true); video.setAttribute("autoplay", true);
var that = InputStream.createVideoStream(video); var that = InputStream.createVideoStream(video);
@ -150,9 +146,9 @@ define(["image_loader"], function(ImageLoader) {
}; };
return that; return that;
}; };
InputStream.createImageStream = function() { InputStream.createImageStream = function() {
var that = {}; var that = {};
var _config = null; var _config = null;
@ -311,7 +307,6 @@ define(["image_loader"], function(ImageLoader) {
}; };
return that; return that;
}; };
return (InputStream); export default InputStream;
});

132
src/quagga.js
Unescape Escape View File

@ -1,33 +1,19 @@
/* jshint undef: true, unused: true, browser:true, devel: true, evil: true */ import TypeDefs from './typedefs';
/* global define */ import InputStream from './input_stream';
define([ import ImageWrapper from './image_wrapper';
"input_stream", import BarcodeLocator from './barcode_locator';
"image_wrapper", import BarcodeDecoder from './barcode_decoder';
"barcode_locator", import FrameGrabber from './frame_grabber';
"barcode_decoder", import Config from './config';
"frame_grabber", import Events from './events';
"html_utils", import CameraAccess from './camera_access';
"config", import ImageDebug from './image_debug';
"events", import {vec2} from 'gl-matrix';
"camera_access", import ResultCollector from './result_collector';
"image_debug",
"gl-matrix", const merge = require('lodash/object/merge');
"result_collector"],
function(InputStream, var _inputStream,
ImageWrapper,
BarcodeLocator,
BarcodeDecoder,
FrameGrabber,
HtmlUtils,
_config,
Events,
CameraAccess,
ImageDebug,
glMatrix,
ResultCollector) {
"use strict";
var _inputStream,
_framegrabber, _framegrabber,
_stopped, _stopped,
_canvasContainer = { _canvasContainer = {
@ -45,15 +31,15 @@ function(InputStream,
_decoder, _decoder,
_workerPool = [], _workerPool = [],
_onUIThread = true, _onUIThread = true,
vec2 = glMatrix.vec2, _resultCollector,
_resultCollector; _config = {};
function initializeData(imageWrapper) { function initializeData(imageWrapper) {
initBuffers(imageWrapper); initBuffers(imageWrapper);
_decoder = BarcodeDecoder.create(_config.decoder, _inputImageWrapper); _decoder = BarcodeDecoder.create(_config.decoder, _inputImageWrapper);
} }
function initConfig() { function initConfig() {
if (typeof document !== "undefined") { if (typeof document !== "undefined") {
var vis = [{ var vis = [{
node: document.querySelector("div[data-controls]"), node: document.querySelector("div[data-controls]"),
@ -73,9 +59,9 @@ function(InputStream,
} }
} }
} }
} }
function initInputStream(cb) { function initInputStream(cb) {
var video; var video;
if (_config.inputStream.type == "VideoStream") { if (_config.inputStream.type == "VideoStream") {
video = document.createElement("video"); video = document.createElement("video");
@ -105,9 +91,9 @@ function(InputStream,
_inputStream.setAttribute("autoplay", true); _inputStream.setAttribute("autoplay", true);
_inputStream.setInputStream(_config.inputStream); _inputStream.setInputStream(_config.inputStream);
_inputStream.addEventListener("canrecord", canRecord.bind(undefined, cb)); _inputStream.addEventListener("canrecord", canRecord.bind(undefined, cb));
} }
function canRecord(cb) { function canRecord(cb) {
BarcodeLocator.checkImageConstraints(_inputStream, _config.locator); BarcodeLocator.checkImageConstraints(_inputStream, _config.locator);
initCanvas(); initCanvas();
_framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image); _framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image);
@ -122,14 +108,14 @@ function(InputStream,
initializeData(); initializeData();
ready(cb); ready(cb);
} }
} }
function ready(cb){ function ready(cb){
_inputStream.play(); _inputStream.play();
cb(); cb();
} }
function initCanvas() { function initCanvas() {
if (typeof document !== "undefined") { if (typeof document !== "undefined") {
var $viewport = document.querySelector("#interactive.viewport"); var $viewport = document.querySelector("#interactive.viewport");
_canvasContainer.dom.image = document.querySelector("canvas.imgBuffer"); _canvasContainer.dom.image = document.querySelector("canvas.imgBuffer");
@ -161,9 +147,9 @@ function(InputStream,
_canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x; _canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x;
_canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y; _canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y;
} }
} }
function initBuffers(imageWrapper) { function initBuffers(imageWrapper) {
if (imageWrapper) { if (imageWrapper) {
_inputImageWrapper = imageWrapper; _inputImageWrapper = imageWrapper;
} else { } else {
@ -181,9 +167,9 @@ function(InputStream,
vec2.clone([_inputImageWrapper.size.x, 0]) vec2.clone([_inputImageWrapper.size.x, 0])
]; ];
BarcodeLocator.init(_inputImageWrapper, _config.locator); BarcodeLocator.init(_inputImageWrapper, _config.locator);
} }
function getBoundingBoxes() { function getBoundingBoxes() {
if (_config.locate) { if (_config.locate) {
return BarcodeLocator.locate(); return BarcodeLocator.locate();
} else { } else {
@ -193,9 +179,9 @@ function(InputStream,
vec2.clone(_boxSize[2]), vec2.clone(_boxSize[2]),
vec2.clone(_boxSize[3])]]; vec2.clone(_boxSize[3])]];
} }
} }
function transformResult(result) { function transformResult(result) {
var topRight = _inputStream.getTopRight(), var topRight = _inputStream.getTopRight(),
xOffset = topRight.x, xOffset = topRight.x,
yOffset = topRight.y, yOffset = topRight.y,
@ -230,9 +216,9 @@ function(InputStream,
line[1].x += xOffset; line[1].x += xOffset;
line[1].y += yOffset; line[1].y += yOffset;
} }
} }
function publishResult(result, imageData) { function publishResult(result, imageData) {
if (_onUIThread) { if (_onUIThread) {
transformResult(result); transformResult(result);
if (imageData && result && result.codeResult) { if (imageData && result && result.codeResult) {
@ -246,9 +232,9 @@ function(InputStream,
if (result && result.codeResult) { if (result && result.codeResult) {
Events.publish("detected", result); Events.publish("detected", result);
} }
} }
function locateAndDecode() { function locateAndDecode() {
var result, var result,
boxes; boxes;
@ -261,9 +247,9 @@ function(InputStream,
} else { } else {
publishResult(); publishResult();
} }
} }
function update() { function update() {
var availableWorker; var availableWorker;
if (_onUIThread) { if (_onUIThread) {
@ -293,9 +279,9 @@ function(InputStream,
} else { } else {
locateAndDecode(); locateAndDecode();
} }
} }
function start() { function start() {
_stopped = false; _stopped = false;
( function frame() { ( function frame() {
if (!_stopped) { if (!_stopped) {
@ -305,9 +291,9 @@ function(InputStream,
} }
} }
}()); }());
} }
function initWorkers(cb) { function initWorkers(cb) {
var i; var i;
_workerPool = []; _workerPool = [];
@ -321,9 +307,9 @@ function(InputStream,
cb(); cb();
} }
} }
} }
function initWorker(cb) { function initWorker(cb) {
var blobURL, var blobURL,
workerThread = { workerThread = {
worker: undefined, worker: undefined,
@ -356,10 +342,11 @@ function(InputStream,
imageData: workerThread.imageData, imageData: workerThread.imageData,
config: _config config: _config
}, [workerThread.imageData.buffer]); }, [workerThread.imageData.buffer]);
} }
function workerInterface(factory) { function workerInterface(factory) {
window = self;
if (factory) { if (factory) {
/* jshint ignore:start */ /* jshint ignore:start */
var Quagga = factory(); var Quagga = factory();
@ -398,9 +385,9 @@ function(InputStream,
self.postMessage({'event': 'initialized', imageData: imageWrapper.data}, [imageWrapper.data.buffer]); self.postMessage({'event': 'initialized', imageData: imageWrapper.data}, [imageWrapper.data.buffer]);
} }
/* jshint ignore:end */ /* jshint ignore:end */
} }
function generateWorkerBlob() { function generateWorkerBlob() {
var blob, var blob,
factorySource; factorySource;
@ -414,9 +401,9 @@ function(InputStream,
{type : 'text/javascript'}); {type : 'text/javascript'});
return window.URL.createObjectURL(blob); return window.URL.createObjectURL(blob);
} }
function setReaders(readers) { function setReaders(readers) {
if (_decoder) { if (_decoder) {
_decoder.setReaders(readers); _decoder.setReaders(readers);
} else if (_onUIThread && _workerPool.length > 0) { } else if (_onUIThread && _workerPool.length > 0) {
@ -424,11 +411,11 @@ function(InputStream,
workerThread.worker.postMessage({cmd: 'setReaders', readers: readers}); workerThread.worker.postMessage({cmd: 'setReaders', readers: readers});
}); });
} }
} }
return { export default {
init : function(config, cb, imageWrapper) { init : function(config, cb, imageWrapper) {
_config = HtmlUtils.mergeObjects(_config, config); _config = merge({}, Config, config);
if (imageWrapper) { if (imageWrapper) {
_onUIThread = false; _onUIThread = false;
initializeData(imageWrapper); initializeData(imageWrapper);
@ -477,7 +464,7 @@ function(InputStream,
}, },
canvas : _canvasContainer, canvas : _canvasContainer,
decodeSingle : function(config, resultCallback) { decodeSingle : function(config, resultCallback) {
config = HtmlUtils.mergeObjects({ config = merge({
inputStream: { inputStream: {
type : "ImageStream", type : "ImageStream",
sequence : false, sequence : false,
@ -500,5 +487,4 @@ function(InputStream,
ImageWrapper: ImageWrapper, ImageWrapper: ImageWrapper,
ImageDebug: ImageDebug, ImageDebug: ImageDebug,
ResultCollector: ResultCollector ResultCollector: ResultCollector
}; };
});

13
src/rasterizer.js
Unescape Escape View File

@ -1,13 +1,9 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import Tracer from './tracer';
/* global define */
/** /**
* http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization
*/ */
define(["tracer"], function(Tracer) { var Rasterizer = {
"use strict";
var Rasterizer = {
createContour2D : function() { createContour2D : function() {
return { return {
dir : null, dir : null,
@ -192,7 +188,6 @@ define(["tracer"], function(Tracer) {
} }
}; };
} }
}; };
return (Rasterizer); export default Rasterizer;
});

19
src/result_collector.js
Unescape Escape View File

@ -1,10 +1,6 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import ImageDebug from './image_debug';
/* global define */
define(["image_debug"], function(ImageDebug) { function contains(codeResult, list) {
"use strict";
function contains(codeResult, list) {
if (list) { if (list) {
return list.some(function (item) { return list.some(function (item) {
return Object.keys(item).every(function (key) { return Object.keys(item).every(function (key) {
@ -13,16 +9,16 @@ define(["image_debug"], function(ImageDebug) {
}); });
} }
return false; return false;
} }
function passesFilter(codeResult, filter) { function passesFilter(codeResult, filter) {
if (typeof filter === 'function') { if (typeof filter === 'function') {
return filter(codeResult); return filter(codeResult);
} }
return true; return true;
} }
return { export default {
create: function(config) { create: function(config) {
var canvas = document.createElement("canvas"), var canvas = document.createElement("canvas"),
ctx = canvas.getContext("2d"), ctx = canvas.getContext("2d"),
@ -55,5 +51,4 @@ define(["image_debug"], function(ImageDebug) {
} }
}; };
} }
}; };
});

17
src/skeletonizer.js
Unescape Escape View File

@ -1,11 +1,5 @@
/* jshint undef: true, unused: true, browser:true, devel: true, -W041: false */ /* @preserve ASM BEGIN */
/* global define */ function Skeletonizer(stdlib, foreign, buffer) {
define(function() {
"use strict";
/* @preserve ASM BEGIN */
function Skeletonizer(stdlib, foreign, buffer) {
"use asm"; "use asm";
var images = new stdlib.Uint8Array(buffer), var images = new stdlib.Uint8Array(buffer),
@ -197,8 +191,7 @@ define(function() {
return { return {
skeletonize : skeletonize skeletonize : skeletonize
}; };
} }
/* @preserve ASM END */ /* @preserve ASM END */
return Skeletonizer; export default Skeletonizer;
});

39
src/subImage.js
Unescape Escape View File

@ -1,10 +1,4 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ /**
/* global define */
define(["typedefs"], function() {
"use strict";
/**
* Construct representing a part of another {ImageWrapper}. Shares data * Construct representing a part of another {ImageWrapper}. Shares data
* between the parent and the child. * between the parent and the child.
* @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)
@ -12,7 +6,7 @@ define(["typedefs"], function() {
* @param I {ImageWrapper} The {ImageWrapper} to share from * @param I {ImageWrapper} The {ImageWrapper} to share from
* @returns {SubImage} A shared part of the original image * @returns {SubImage} A shared part of the original image
*/ */
function SubImage(from, size, I) { function SubImage(from, size, I) {
if (!I) { if (!I) {
I = { I = {
data : null, data : null,
@ -25,14 +19,14 @@ define(["typedefs"], function() {
this.from = from; this.from = from;
this.size = size; this.size = size;
} }
/** /**
* Displays the {SubImage} in a given canvas * Displays the {SubImage} in a given canvas
* @param canvas {Canvas} The canvas element to write to * @param canvas {Canvas} The canvas element to write to
* @param scale {Number} Scale which is applied to each pixel-value * @param scale {Number} Scale which is applied to each pixel-value
*/ */
SubImage.prototype.show = function(canvas, scale) { SubImage.prototype.show = function(canvas, scale) {
var ctx, var ctx,
frame, frame,
data, data,
@ -62,36 +56,35 @@ define(["typedefs"], function() {
} }
frame.data = data; frame.data = data;
ctx.putImageData(frame, 0, 0); ctx.putImageData(frame, 0, 0);
}; };
/** /**
* Retrieves a given pixel position from the {SubImage} * Retrieves a given pixel position from the {SubImage}
* @param x {Number} The x-position * @param x {Number} The x-position
* @param y {Number} The y-position * @param y {Number} The y-position
* @returns {Number} The grayscale value at the pixel-position * @returns {Number} The grayscale value at the pixel-position
*/ */
SubImage.prototype.get = function(x, y) { SubImage.prototype.get = function(x, y) {
return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x]; return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x];
}; };
/** /**
* Updates the underlying data from a given {ImageWrapper} * Updates the underlying data from a given {ImageWrapper}
* @param image {ImageWrapper} The updated image * @param image {ImageWrapper} The updated image
*/ */
SubImage.prototype.updateData = function(image) { SubImage.prototype.updateData = function(image) {
this.originalSize = image.size; this.originalSize = image.size;
this.data = image.data; this.data = image.data;
}; };
/** /**
* Updates the position of the shared area * Updates the position of the shared area
* @param from {x,y} The new location * @param from {x,y} The new location
* @returns {SubImage} returns {this} for possible chaining * @returns {SubImage} returns {this} for possible chaining
*/ */
SubImage.prototype.updateFrom = function(from) { SubImage.prototype.updateFrom = function(from) {
this.from = from; this.from = from;
return this; return this;
}; };
return (SubImage); export default (SubImage);
});

13
src/tracer.js
Unescape Escape View File

@ -1,13 +1,7 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
/** /**
* http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization
*/ */
define(function() { var Tracer = {
"use strict";
var Tracer = {
searchDirections : [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]], searchDirections : [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]],
create : function(imageWrapper, labelWrapper) { create : function(imageWrapper, labelWrapper) {
var imageData = imageWrapper.data, var imageData = imageWrapper.data,
@ -102,7 +96,6 @@ define(function() {
} }
}; };
} }
}; };
return (Tracer); export default (Tracer);
});

13
src/typedefs.js
Unescape Escape View File

@ -3,8 +3,7 @@
* Normalizes browser-specific prefixes * Normalizes browser-specific prefixes
*/ */
glMatrixArrayType = Float32Array; if (typeof window !== 'undefined') {
if (typeof window !== 'undefined') {
window.requestAnimFrame = (function () { window.requestAnimFrame = (function () {
return window.requestAnimationFrame || return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame || window.webkitRequestAnimationFrame ||
@ -18,8 +17,8 @@ if (typeof window !== 'undefined') {
navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;
window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL;
} }
Math.imul = Math.imul || function(a, b) { Math.imul = Math.imul || function(a, b) {
var ah = (a >>> 16) & 0xffff, var ah = (a >>> 16) & 0xffff,
al = a & 0xffff, al = a & 0xffff,
bh = (b >>> 16) & 0xffff, bh = (b >>> 16) & 0xffff,
@ -27,4 +26,8 @@ Math.imul = Math.imul || function(a, b) {
// the shift by 0 fixes the sign on the high part // the shift by 0 fixes the sign on the high part
// the final |0 converts the unsigned value into a signed value // the final |0 converts the unsigned value into a signed value
return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0); return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
}; };
export default {
}

50
src/upc_e_reader.js
Unescape Escape View File

@ -1,29 +1,21 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import EANReader from './ean_reader';
/* global define */
define( function UPCEReader() {
[
"./ean_reader"
],
function(EANReader) {
"use strict";
function UPCEReader() {
EANReader.call(this); EANReader.call(this);
} }
var properties = { var properties = {
CODE_FREQUENCY : {value: [ CODE_FREQUENCY : {value: [
[ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ], [ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ],
[7, 11, 13, 14, 19, 25, 28, 21, 22, 26]]}, [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]}, 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} FORMAT: {value: "upc_e", writeable: false}
}; };
UPCEReader.prototype = Object.create(EANReader.prototype, properties); UPCEReader.prototype = Object.create(EANReader.prototype, properties);
UPCEReader.prototype.constructor = UPCEReader; UPCEReader.prototype.constructor = UPCEReader;
UPCEReader.prototype._decodePayload = function(code, result, decodedCodes) { UPCEReader.prototype._decodePayload = function(code, result, decodedCodes) {
var i, var i,
self = this, self = this,
codeFrequency = 0x0; codeFrequency = 0x0;
@ -45,9 +37,9 @@ define(
} }
return code; return code;
}; };
UPCEReader.prototype._determineParity = function(codeFrequency, result) { UPCEReader.prototype._determineParity = function(codeFrequency, result) {
var self =this, var self =this,
i, i,
nrSystem; nrSystem;
@ -62,9 +54,9 @@ define(
} }
} }
return false; return false;
}; };
UPCEReader.prototype._convertToUPCA = function(result) { UPCEReader.prototype._convertToUPCA = function(result) {
var upca = [result[0]], var upca = [result[0]],
lastDigit = result[result.length - 2]; lastDigit = result[result.length - 2];
@ -86,18 +78,18 @@ define(
upca.push(result[result.length - 1]); upca.push(result[result.length - 1]);
return upca; return upca;
}; };
UPCEReader.prototype._checksum = function(result) { UPCEReader.prototype._checksum = function(result) {
return EANReader.prototype._checksum.call(this, this._convertToUPCA(result)); return EANReader.prototype._checksum.call(this, this._convertToUPCA(result));
}; };
UPCEReader.prototype._findEnd = function(offset, isWhite) { UPCEReader.prototype._findEnd = function(offset, isWhite) {
isWhite = true; isWhite = true;
return EANReader.prototype._findEnd.call(this, offset, isWhite); return EANReader.prototype._findEnd.call(this, offset, isWhite);
}; };
UPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) { UPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) {
var self = this, var self = this,
trailingWhitespaceEnd; trailingWhitespaceEnd;
@ -107,8 +99,6 @@ define(
return endInfo; return endInfo;
} }
} }
}; };
return (UPCEReader); export default UPCEReader;
}
);

30
src/upc_reader.js
Unescape Escape View File

@ -1,25 +1,17 @@
/* jshint undef: true, unused: true, browser:true, devel: true */ import EANReader from './ean_reader';
/* global define */
define( function UPCReader() {
[
"./ean_reader"
],
function(EANReader) {
"use strict";
function UPCReader() {
EANReader.call(this); EANReader.call(this);
} }
var properties = { var properties = {
FORMAT: {value: "upc_a", writeable: false} FORMAT: {value: "upc_a", writeable: false}
}; };
UPCReader.prototype = Object.create(EANReader.prototype, properties); UPCReader.prototype = Object.create(EANReader.prototype, properties);
UPCReader.prototype.constructor = UPCReader; UPCReader.prototype.constructor = UPCReader;
UPCReader.prototype._decode = function() { UPCReader.prototype._decode = function() {
var result = EANReader.prototype._decode.call(this); var result = EANReader.prototype._decode.call(this);
if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") { if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") {
@ -28,8 +20,6 @@ define(
return result; return result;
} }
return null; return null;
}; };
return (UPCReader); export default EANReader;
}
);

34
webpack.config.js
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@ -0,0 +1,34 @@
var webpack = require('webpack'),
MyUmdPlugin = require('./plugins/umd');
module.exports = {
entry: [
'./src/quagga.js'
],
devtool: 'source-map',
module: {
loaders: [{
test: /\.jsx?$/,
exclude: /node_modules/,
loader: 'babel'
}]
},
resolve: {
extensions: ['', '.js', '.jsx']
},
output: {
path: __dirname + '/dist',
publicPath: '/',
filename: 'quagga.js',
sourceMapFilename: 'quagga.map'
},
devServer: {
contentBase: './',
hot: true
},
plugins: [
new MyUmdPlugin({
library: 'Quagga'
})
]
};

8
webpack.config.min.js vendored
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@ -0,0 +1,8 @@
var webpack = require('webpack');
module.exports = require('./webpack.config.js');
module.exports.plugins.unshift(
new webpack.optimize.UglifyJsPlugin()
);
module.exports.output.filename = 'quagga.min.js';
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