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Merge pull request #72 from serratus/feature/webpack

Browse Source 
From RequireJS to Webpack
pull/79/head v0.8.0
Christoph Oberhofer 10 years ago
parent a852394bd9 f4e79e5e6c
commit d23e824876
69 changed files with 27811 additions and 14499 deletions
Show Stats Download Patch File Download Diff File

80
.eslintrc
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@ -0,0 +1,80 @@
{
"settings" : {
"ecmascript": 6,
"jsx": true
},
"env": {
"browser": true,
"node": true
},
"ecmaFeatures": {
"blockBindings": true,
"forOf": true,
"blockBindings": true,
"defaultParams": true,
"globalReturn": false,
"modules": true,
"objectLiteralShorthandMethods": true,
"objectLiteralShorthandProperties": true,
"templateStrings": true,
"spread": true,
"jsx": true,
"arrowFunctions": true,
"classes": true,
"destructuring": true,
"objectLiteralComputedProperties": true
},
"globals": {},
"rules": {
"no-unused-expressions": 1,
"no-extra-boolean-cast": 1,
"no-multi-spaces": 2,
"no-underscore-dangle": 0,
"comma-dangle": 2,
"camelcase": 0,
"curly": 2,
"eqeqeq": 2,
"guard-for-in": 2,
"wrap-iife": 0,
"no-use-before-define": [1, "nofunc"],
"new-cap": 2,
"quotes": 0,
"strict": 0,
"no-caller": 2,
"no-empty": 1,
"no-new": 2,
"no-plusplus": 0,
"no-unused-vars": 1,
"no-trailing-spaces": 2,
// STYLE
"max-params": [2, 7],
"key-spacing": [1, {
beforeColon: false,
afterColon: true
}],
"indent": [2, 4],
"brace-style": [2, "1tbs"],
"comma-spacing": [2, {before: false, after: true}],
"comma-style": [2, "last"],
"consistent-this": [1, "self"],
"eol-last": 0,
"new-cap": 0,
"new-parens": 2,
"no-array-constructor": 2,
"no-mixed-spaces-and-tabs": 2,
"no-multiple-empty-lines": 2,
"semi-spacing": 2,
"dot-notation": 2,
"no-spaced-func": 1,
"no-shadow": 2,
"no-undef": 2,
"padded-blocks": [2, "never"],
"semi": [2, "always"],
"space-after-keywords": [2, "always"],
"space-infix-ops": 2,
"max-len" : [1, 120],
"consistent-return": 2,
"yoda": 2
}
}

56
Gruntfile.js
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@ -1,8 +1,7 @@
module.exports = function(grunt) {
// Project configuration.
grunt.initConfig({
pkg : grunt.file.readJSON('package.json'),
pkg: grunt.file.readJSON('package.json'),
karma: {
unit: {
configFile: 'karma.conf.js'
@ -10,67 +9,14 @@ module.exports = function(grunt) {
integration: {
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 : {
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"
}
}
}
}
});
// Load the plugin that provides the "uglify" task.
grunt.loadNpmTasks('grunt-contrib-jshint');
grunt.loadNpmTasks('grunt-contrib-uglify');
grunt.loadNpmTasks('grunt-requirejs');
grunt.loadNpmTasks('grunt-karma');
grunt.loadTasks('tasks');
grunt.registerTask('build', ['check', 'requirejs']);
grunt.registerTask('check', ['jshint']);
grunt.registerTask('dist', ['build', 'uglify', 'uglyasm']);
grunt.registerTask('test', ['karma']);
grunt.registerTask('integrationtest', ['karma:integration']);
grunt.registerTask('default', ['build']);
};

19
README.md
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@ -1,7 +1,7 @@
quaggaJS
========
- [Changelog](#changelog) (2015-09-15)
- [Changelog](#changelog) (2015-10-13)
## What is QuaggaJS?
@ -90,11 +90,15 @@ You can build the library yourself by simply cloning the repo and typing:
```console
> npm install
> grunt dist
> npm run build
```
This grunt task builds a non optimized version `quagga.js` and a minified
This npm script builds a non optimized version `quagga.js` and a minified
version `quagga.min.js` and places both files in the `dist` folder.
Additionally, a `quagga.map` source-map is placed alongside these files. This
file is only valid for the non-uglified version `quagga.js` because the
minified version is altered after compression and does not align with the map
file any more.
## API
@ -360,7 +364,7 @@ automatically generated in the coverage/ folder.
```console
> npm install
> grunt test
> npm run test
```
## Image Debugging
@ -430,6 +434,13 @@ on the ``singleChannel`` flag in the configuration when using ``decodeSingle``.
## <a name="changelog">Changelog</a>
### 2015-10-13
Take a look at the release-notes ([0.8.0]
(https://github.com/serratus/quaggaJS/releases/tag/v0.8.0))
- Improvements
- Replaced RequireJS with webpack
### 2015-09-15
Take a look at the release-notes ([0.7.0]
(https://github.com/serratus/quaggaJS/releases/tag/v0.7.0))

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dist/quagga.min.js vendored
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2
example/file_input.html
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@ -101,7 +101,7 @@
&copy; Copyright by Christoph Oberhofer
</p>
</footer>
<script src="../src/vendor/jquery-1.9.0.min.js" type="text/javascript"></script>
<script src="vendor/jquery-1.9.0.min.js" type="text/javascript"></script>
<script src="../dist/quagga.js" type="text/javascript"></script>
<script src="file_input.js" type="text/javascript"></script>
</body>

101
example/file_input_require.html
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@ -1,101 +0,0 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
<title>index</title>
<meta name="description" content=""/>
<meta name="author" content="Christoph Oberhofer"/>
<meta name="viewport" content="width=device-width; initial-scale=1.0"/>
<link rel="stylesheet" type="text/css" href="css/styles.css"/>
</head>
<body>
<header>
<div class="headline">
<h1>QuaggaJS</h1>
<h2>An advanced barcode-scanner written in JavaScript</h2>
</div>
</header>
<section id="container" class="container">
<h3>Working with file-input</h3>
<p>This example let's you select an image from your local filesystem.
QuaggaJS then tries to decode the barcode using
the preferred method (<strong>Code128</strong> or <strong>EAN</strong>).
There is no server interaction needed as the
file is simply accessed through the <a
href="http://www.w3.org/TR/file-upload/">File API</a>.</p>
<p>This also works great on a wide range of mobile-phones where the camera
access through <code>getUserMedia</code> is still very limited.</p>
<div class="controls">
<fieldset class="input-group">
<input type="file" capture/>
<button>Rerun</button>
</fieldset>
<fieldset class="reader-config-group">
<label>
<span>Barcode-Type</span>
<select name="decoder_readers">
<option value="code_128" selected="selected">Code 128</option>
<option value="code_39">Code 39</option>
<option value="code_39_vin">Code 39 VIN</option>
<option value="ean">EAN</option>
<option value="ean_8">EAN-8</option>
<option value="upc">UPC</option>
<option value="upc_e">UPC-E</option>
<option value="codabar">Codabar</option>
</select>
</label>
<label>
<span>Resolution (long side)</span>
<select name="input-stream_size">
<option value="320">320px</option>
<option selected="selected" value="640">640px</option>
<option value="800">800px</option>
<option value="1280">1280px</option>
<option value="1600">1600px</option>
<option value="1920">1920px</option>
</select>
</label>
<label>
<span>Patch-Size</span>
<select name="locator_patch-size">
<option value="x-small">x-small</option>
<option value="small">small</option>
<option selected="selected" value="medium">medium</option>
<option value="large">large</option>
<option value="x-large">x-large</option>
</select>
</label>
<label>
<span>Half-Sample</span>
<input type="checkbox" checked="checked"
name="locator_half-sample" />
</label>
<label>
<span>Single Channel</span>
<input type="checkbox" name="input-stream_single-channel" />
</label>
</fieldset>
</div>
<div id="result_strip">
<ul class="thumbnails"></ul>
</div>
<div id="interactive" class="viewport"></div>
<div id="debug" class="detection"></div>
</section>
<footer>
<p>
&copy; Copyright by Christoph Oberhofer
</p>
</footer>
<script src="../src/vendor/jquery-1.9.0.min.js" type="text/javascript"></script>
<script data-main="file_input_require.js" src="../node_modules/requirejs/require.js"></script>
</body>
</html>

161
example/file_input_require.js
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@ -1,161 +0,0 @@
requirejs.config({
"baseUrl" : "../src",
"shim" : {
"typedefs" : {
"deps" : [],
"exports" : "typedefs"
}
},
"paths" : {
"typedefs" : "typedefs",
"gl-matrix": "../node_modules/gl-matrix/dist/gl-matrix-min"
}
});
requirejs(['quagga'], function(Quagga) {
var App = {
init: function() {
App.attachListeners();
},
attachListeners: function() {
var self = this;
$(".controls input[type=file]").on("change", function(e) {
if (e.target.files && e.target.files.length) {
App.decode(URL.createObjectURL(e.target.files[0]));
}
});
$(".controls button").on("click", function(e) {
var input = document.querySelector(".controls input[type=file]");
if (input.files && input.files.length) {
App.decode(URL.createObjectURL(input.files[0]));
}
});
$(".controls .reader-config-group").on("change", "input, select", function(e) {
e.preventDefault();
var $target = $(e.target),
value = $target.attr("type") === "checkbox" ? $target.prop("checked") : $target.val(),
name = $target.attr("name"),
state = self._convertNameToState(name);
console.log("Value of "+ state + " changed to " + value);
self.setState(state, value);
});
},
_accessByPath: function(obj, path, val) {
var parts = path.split('.'),
depth = parts.length,
setter = (typeof val !== "undefined") ? true : false;
return parts.reduce(function(o, key, i) {
if (setter && (i + 1) === depth) {
o[key] = val;
}
return key in o ? o[key] : {};
}, obj);
},
_convertNameToState: function(name) {
return name.replace("_", ".").split("-").reduce(function(result, value) {
return result + value.charAt(0).toUpperCase() + value.substring(1);
});
},
detachListeners: function() {
$(".controls input[type=file]").off("change");
$(".controls .reader-config-group").off("change", "input, select");
$(".controls button").off("click");
},
decode: function(src) {
var self = this,
config = $.extend({}, self.state, {src: src});
Quagga.decodeSingle(config, function(result) {});
},
setState: function(path, value) {
var self = this;
if (typeof self._accessByPath(self.inputMapper, path) === "function") {
value = self._accessByPath(self.inputMapper, path)(value);
}
self._accessByPath(self.state, path, value);
console.log(JSON.stringify(self.state));
App.detachListeners();
App.init();
},
inputMapper: {
inputStream: {
size: function(value){
return parseInt(value);
}
},
numOfWorkers: function(value) {
return parseInt(value);
},
decoder: {
readers: function(value) {
return [value + "_reader"];
}
}
},
state: {
inputStream: {
size: 640,
singleChannel: false
},
locator: {
patchSize: "medium",
halfSample: true,
showCanvas: true
},
numOfWorkers: 0,
decoder: {
readers: ["code_128_reader"],
showFrequency: true,
showPattern: true
},
locate: true,
src: null
}
};
App.init();
Quagga.onProcessed(function(result) {
var drawingCtx = Quagga.canvas.ctx.overlay,
drawingCanvas = Quagga.canvas.dom.overlay;
if (result) {
if (result.boxes) {
drawingCtx.clearRect(0, 0, parseInt(drawingCanvas.getAttribute("width")), parseInt(drawingCanvas.getAttribute("height")));
result.boxes.filter(function (box) {
return box !== result.box;
}).forEach(function (box) {
Quagga.ImageDebug.drawPath(box, {x: 0, y: 1}, drawingCtx, {color: "green", lineWidth: 2});
});
}
if (result.box) {
Quagga.ImageDebug.drawPath(result.box, {x: 0, y: 1}, drawingCtx, {color: "#00F", lineWidth: 2});
}
if (result.codeResult && result.codeResult.code) {
Quagga.ImageDebug.drawPath(result.line, {x: 'x', y: 'y'}, drawingCtx, {color: 'red', lineWidth: 3});
}
}
});
Quagga.onDetected(function(result) {
var code = result.codeResult.code,
$node,
canvas = Quagga.canvas.dom.image;
$node = $('<li><div class="thumbnail"><div class="imgWrapper"><img /></div><div class="caption"><h4 class="code"></h4></div></div></li>');
$node.find("img").attr("src", canvas.toDataURL());
$node.find("h4.code").html(code + " (" + result.codeResult.format + ")");
$("#result_strip ul.thumbnails").prepend($node);
});
});

0
src/vendor/jquery-1.9.0.min.js → example/vendor/jquery-1.9.0.min.js vendored
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38
karma-integration.conf.js
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@ -1,25 +1,45 @@
var path = require('path');
module.exports = function(config) {
config.set({
basePath: '',
frameworks: ['mocha', 'requirejs', 'chai', 'sinon', 'sinon-chai'],
frameworks: ['mocha', 'chai', 'sinon', 'sinon-chai'],
files: [
'test-main.js',
'src/typedefs.js',
{pattern: 'node_modules/async/lib/async.js', included: false},
{pattern: 'node_modules/gl-matrix/dist/gl-matrix-min.js', included: false},
{pattern: 'src/*.js', included: false},
{pattern: 'spec/**/*integration.spec.js', included: false},
{pattern: 'test/**/*.*', included: false}
'test/test-main-integration.js',
{pattern: 'test/integration/**/*.js', included: false},
{pattern: 'test/fixtures/**/*.*', included: false}
],
preprocessors: {
'test/test-main-integration.js': ['webpack']
},
webpack: {
module: {
preLoaders: [
{
test: /\.js$/,
exclude: [
/node_modules/
],
loader: 'babel'
}
]
},
resolve: {
extensions: ['', '.js', '.jsx'],
alias: {
'input_stream$': path.resolve(__dirname, 'src/input_stream'),
'frame_grabber$': path.resolve(__dirname, 'src/frame_grabber')
}
}
},
plugins: [
'karma-chrome-launcher',
'karma-mocha',
'karma-requirejs',
'karma-chai',
'karma-sinon',
'karma-sinon-chai'
'karma-sinon-chai',
require('karma-webpack')
],
reporters: ['progress'],
port: 9876,

52
karma.conf.js
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@ -1,31 +1,53 @@
var path = require('path');
module.exports = function(config) {
config.set({
basePath: '',
frameworks: ['mocha', 'requirejs', 'chai', 'sinon', 'sinon-chai'],
frameworks: ['source-map-support', 'mocha', 'chai', 'sinon', 'sinon-chai'],
files: [
'test-main.js',
'src/typedefs.js',
{pattern: 'node_modules/async/lib/async.js', included: false},
{pattern: 'node_modules/gl-matrix/dist/gl-matrix-min.js', included: false},
{pattern: 'src/*.js', included: false},
{pattern: 'spec/**/*.js', included: false},
{pattern: 'test/**/*.*', included: false}
'test/test-main.js',
{pattern: 'test/spec/**/*.js', included: false}
],
preprocessors: {
'test/test-main.js': ['webpack']
},
webpack: {
module: {
preLoaders: [
{
test: /\.js$/,
exclude: [
'spec/**/*integration.spec.js'
/node_modules/
],
preprocessors: {
'src/*.js': ['coverage']
loader: 'babel'
},
{
test: /\.js$/,
include: [
path.resolve('src')
],
exclude: /node_modules/,
loader: 'isparta'
}
]
},
resolve: {
extensions: ['', '.js', '.jsx'],
alias: {
'input_stream$': path.resolve(__dirname, 'src/input_stream'),
'frame_grabber$': path.resolve(__dirname, 'src/frame_grabber')
}
},
},
plugins: [
'karma-chrome-launcher',
'karma-coverage',
'karma-mocha',
'karma-requirejs',
'karma-chai',
'karma-sinon',
'karma-sinon-chai',
'karma-phantomjs-launcher'
'karma-source-map-support',
require('karma-webpack')
],
reporters: ['progress', 'coverage'],
port: 9876,
@ -35,8 +57,8 @@ module.exports = function(config) {
browsers: ['Chrome'],
singleRun: false,
coverageReporter: {
type : 'html',
dir : 'coverage/'
type: 'html',
dir: 'coverage/'
}
});
};

18
lib/frame_grabber.js
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@ -1,15 +1,10 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
define(["cv_utils"], function(CVUtils) {
"use strict";
var Ndarray = require("ndarray"),
const CVUtils = require('../src/cv_utils'),
Ndarray = require("ndarray"),
Interp2D = require("ndarray-linear-interpolate").d2;
var FrameGrabber = {};
var FrameGrabber = {};
FrameGrabber.create = function(inputStream) {
FrameGrabber.create = function(inputStream) {
var _that = {},
_streamConfig = inputStream.getConfig(),
_video_size = CVUtils.imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()),
@ -95,7 +90,6 @@ define(["cv_utils"], function(CVUtils) {
};
return _that;
};
};
return (FrameGrabber);
});
module.exports = FrameGrabber;

17
lib/input_stream.js
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@ -1,14 +1,8 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
const GetPixels = require("get-pixels");
define(function() {
"use strict";
var InputStream = {};
var GetPixels = require("get-pixels");
var InputStream = {};
InputStream.createImageStream = function() {
InputStream.createImageStream = function() {
var that = {};
var _config = null;
@ -154,7 +148,6 @@ define(function() {
};
return that;
};
};
return (InputStream);
});
module.exports = InputStream;

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lib/quagga.js
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23
package.json
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@ -1,18 +1,23 @@
{
"name": "quagga",
"version": "0.7.0",
"version": "0.8.0",
"description": "An advanced barcode-scanner written in JavaScript",
"main": "lib/quagga.js",
"browser": "dist/quagga.js",
"browser": "dist/quagga.min.js",
"devDependencies": {
"async": "^1.4.2",
"babel-core": "^5.8.25",
"babel-eslint": "^4.1.3",
"babel-loader": "^5.3.2",
"chai": "^3.2.0",
"core-js": "^1.2.1",
"grunt": "^0.4.5",
"grunt-contrib-jshint": "^0.11.3",
"grunt-contrib-nodeunit": "^0.4.1",
"grunt-contrib-uglify": "^0.9.2",
"grunt-karma": "^0.12.1",
"grunt-requirejs": "^0.4.2",
"isparta-loader": "^1.0.0",
"karma": "^0.13.9",
"karma-chai": "0.1.0",
"karma-chrome-launcher": "^0.2.0",
@ -22,14 +27,20 @@
"karma-requirejs": "~0.2.2",
"karma-sinon": "^1.0.4",
"karma-sinon-chai": "~0.2.0",
"karma-source-map-support": "^1.1.0",
"karma-webpack": "^1.7.0",
"mocha": "^2.3.2",
"sinon": "^1.16.1"
"sinon": "^1.16.1",
"webpack": "^1.12.2"
},
"directories": {
"doc": "doc"
},
"scripts": {
"test": "karma start"
"test": "grunt test",
"integrationtest": "grunt integrationtest",
"build": "webpack && webpack --config webpack.config.min.js && grunt uglyasm && webpack --config webpack.node.config.js",
"watch": "webpack --watch"
},
"repository": {
"type": "git",
@ -56,8 +67,8 @@
"dependencies": {
"get-pixels": "^3.2.3",
"gl-matrix": "^2.3.1",
"lodash": "^3.10.1",
"ndarray": "^1.0.18",
"ndarray-linear-interpolate": "^1.0.0",
"requirejs": "^2.1.20"
"ndarray-linear-interpolate": "^1.0.0"
}
}

33
plugins/umd.js
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@ -0,0 +1,33 @@
var ConcatSource = require("webpack-core/lib/ConcatSource");
var OriginalSource = require("webpack-core/lib/OriginalSource");
function MyUmdPlugin(options) {
this.name = options.library;
}
module.exports = MyUmdPlugin;
MyUmdPlugin.prototype.apply = function(compiler) {
compiler.plugin("this-compilation", function(compilation) {
var mainTemplate = compilation.mainTemplate;
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));
};

53
spec/array_helper.spec.js
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define(['array_helper'], function(ArrayHelper){
describe('init', function() {
it('initializes an array with the given value', function() {
var input = [0, 0, 0];
ArrayHelper.init(input, 5);
expect(input).to.deep.equal([5, 5, 5]);
});
});
describe('shuffle', function() {
before(function() {
sinon.stub(Math, 'random').returns(0.5);
});
after(function() {
sinon.restore(Math);
});
it('shuffles the content of an array', function() {
var input = [1, 2, 3];
expect(ArrayHelper.shuffle(input)).to.deep.equal([3, 1, 2]);
});
});
describe('toPointList', function() {
it('converts an Array to a List of poitns', function() {
var input = [[1, 2], [2, 2], [3, 2]];
expect(ArrayHelper.toPointList(input)).to.equal("[[1,2],\r\n[2,2],\r\n[3,2]]");
});
});
describe('threshold', function() {
it('returns all elements above the given threshold', function() {
var input = [1, 2, 3];
expect(ArrayHelper.threshold(input, 2, function(score) {
return score * 1.5;
})).to.deep.equal([2, 3]);
});
});
describe('maxIndex', function() {
it('gets the index of the biggest element in the array', function() {
var input = [1, 2, 3];
expect(ArrayHelper.maxIndex(input)).to.equal(2);
});
});
describe('max', function() {
it('gets the biggest element in the array', function() {
var input = [1, 3, 2];
expect(ArrayHelper.max(input)).to.equal(3);
});
});
});

131
spec/barcode_locator.spec.js
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define(['barcode_locator', 'config', 'html_utils'],
function(BarcodeLocator, Config, HtmlUtils){
describe('checkImageConstraints', function() {
var config,
inputStream,
imageSize,
streamConfig = {};
beforeEach(function() {
imageSize = {
x: 640, y: 480
};
config = HtmlUtils.mergeObjects({}, Config);
inputStream = {
getWidth: function() {
return imageSize.x;
},
getHeight: function() {
return imageSize.y;
},
setWidth: function() {},
setHeight: function() {},
setTopRight: function() {},
setCanvasSize: function() {},
getConfig: function() {
return streamConfig;
}
};
sinon.stub(inputStream, "setWidth", function(width) {
imageSize.x = width;
});
sinon.stub(inputStream, "setHeight", function(height) {
imageSize.y = height;
});
sinon.stub(inputStream, "setTopRight");
sinon.stub(inputStream, "setCanvasSize");
});
afterEach(function() {
inputStream.setWidth.restore();
inputStream.setHeight.restore();
});
it('should not adjust the image-size if not needed', function() {
var expected = {x: imageSize.x, y: imageSize.y};
BarcodeLocator.checkImageConstraints(inputStream, config.locator);
expect(inputStream.getWidth()).to.be.equal(expected.x);
expect(inputStream.getHeight()).to.be.equal(expected.y);
});
it('should adjust the image-size', function() {
var expected = {x: imageSize.x, y: imageSize.y};
config.locator.halfSample = true;
imageSize.y += 1;
BarcodeLocator.checkImageConstraints(inputStream, config.locator);
expect(inputStream.getWidth()).to.be.equal(expected.x);
expect(inputStream.getHeight()).to.be.equal(expected.y);
});
it('should adjust the image-size', function() {
var expected = {x: imageSize.x, y: imageSize.y};
imageSize.y += 1;
config.locator.halfSample = false;
BarcodeLocator.checkImageConstraints(inputStream, config.locator);
expect(inputStream.getHeight()).to.be.equal(expected.y);
expect(inputStream.getWidth()).to.be.equal(expected.x);
});
it("should take the defined area into account", function() {
var expectedSize = {
x: 420,
y: 315
},
expectedTopRight = {
x: 115,
y: 52
},
expectedCanvasSize = {
x: 640,
y: 480
};
streamConfig.area = {
top: "11%",
right: "15%",
bottom: "20%",
left: "18%"
};
config.locator.halfSample = false;
BarcodeLocator.checkImageConstraints(inputStream, config.locator);
expect(inputStream.getHeight()).to.be.equal(expectedSize.y);
expect(inputStream.getWidth()).to.be.equal(expectedSize.x);
expect(inputStream.setTopRight.getCall(0).args[0]).to.deep.equal(expectedTopRight);
expect(inputStream.setCanvasSize.getCall(0).args[0]).to.deep.equal(expectedCanvasSize);
});
it("should return the original size if set to full image", function() {
var expectedSize = {
x: 640,
y: 480
},
expectedTopRight = {
x: 0,
y: 0
},
expectedCanvasSize = {
x: 640,
y: 480
};
streamConfig.area = {
top: "0%",
right: "0%",
bottom: "0%",
left: "0%"
};
config.locator.halfSample = false;
BarcodeLocator.checkImageConstraints(inputStream, config.locator);
expect(inputStream.getHeight()).to.be.equal(expectedSize.y);
expect(inputStream.getWidth()).to.be.equal(expectedSize.x);
expect(inputStream.setTopRight.getCall(0).args[0]).to.deep.equal(expectedTopRight);
expect(inputStream.setCanvasSize.getCall(0).args[0]).to.deep.equal(expectedCanvasSize);
});
});
});

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spec/camera_access.spec.js
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define(['camera_access'], function(CameraAccess){
var originalURL,
originalMediaStreamTrack,
video,
stream;
beforeEach(function() {
var tracks = [{
stop: function() {}
}];
originalURL = window.URL;
originalMediaStreamTrack = window.MediaStreamTrack;
window.MediaStreamTrack = {};
window.URL = null;
stream = {
getVideoTracks: function() {
return tracks;
}
};
sinon.spy(tracks[0], "stop");
video = {
src: null,
addEventListener: function() {
},
removeEventListener: function() {
},
play: function() {
},
videoWidth: 320,
videoHeight: 480
};
sinon.stub(video, "addEventListener", function(event, cb) {
cb();
});
sinon.stub(video, "play");
});
afterEach(function() {
window.URL = originalURL;
window.MediaStreamTrack = originalMediaStreamTrack;
});
describe('success', function() {
beforeEach(function() {
sinon.stub(navigator, "getUserMedia", function(constraints, success) {
success(stream);
});
});
afterEach(function() {
navigator.getUserMedia.restore();
});
describe('request', function () {
it('should request the camera', function (done) {
CameraAccess.request(video, {}, function () {
expect(navigator.getUserMedia.calledOnce).to.equal(true);
expect(video.src).to.deep.equal(stream);
done();
});
});
});
describe('release', function () {
it('should release the camera', function (done) {
CameraAccess.request(video, {}, function () {
expect(video.src).to.deep.equal(stream);
CameraAccess.release();
expect(video.src.getVideoTracks()).to.have.length(1);
expect(video.src.getVideoTracks()[0].stop.calledOnce).to.equal(true);
done();
});
});
});
});
describe('failure', function() {
describe("permission denied", function(){
before(function() {
sinon.stub(navigator, "getUserMedia", function(constraints, success, failure) {
failure(new Error());
});
});
after(function() {
navigator.getUserMedia.restore();
});
it('should throw if getUserMedia not available', function(done) {
CameraAccess.request(video, {}, function(err) {
expect(err).to.be.defined;
done();
});
});
});
describe("not available", function(){
var originalGetUserMedia;
before(function() {
originalGetUserMedia = navigator.getUserMedia;
navigator.getUserMedia = undefined;
});
after(function() {
navigator.getUserMedia = originalGetUserMedia;
});
it('should throw if getUserMedia not available', function(done) {
CameraAccess.request(video, {}, function(err) {
expect(err).to.be.defined;
done();
});
});
});
});
});

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spec/cv_utils.spec.js
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define(['cv_utils'], function(CVUtils){
describe('imageRef', function() {
it('gets the image Reference for a coordinate', function() {
var res = CVUtils.imageRef(1, 2);
expect(res.x).to.equal(1);
expect(res.y).to.equal(2);
expect(res.toVec2()[0]).to.equal(1);
});
});
describe('calculatePatchSize', function() {
it('should not throw an error in case of valid image size', function() {
var expected = {x: 32, y: 32},
patchSize = CVUtils.calculatePatchSize("medium", {x: 640, y: 480});
expect(patchSize).to.be.deep.equal(expected);
});
it('should thow an error if image size it not valid', function() {
var expected = {x: 32, y: 32},
patchSize = CVUtils.calculatePatchSize("medium", {x: 640, y: 480});
expect(patchSize).to.be.deep.equal(expected);
});
});
describe('_parseCSSDimensionValues', function() {
it("should convert a percentual value correctly", function() {
var expected = {
value: 10,
unit: "%"
},
result = CVUtils._parseCSSDimensionValues("10%");
expect(result).to.be.deep.equal(expected);
});
it("should convert a 0% value correctly", function() {
var expected = {
value: 100,
unit: "%"
},
result = CVUtils._parseCSSDimensionValues("100%");
expect(result).to.be.deep.equal(expected);
});
it("should convert a 100% value correctly", function() {
var expected = {
value: 0,
unit: "%"
},
result = CVUtils._parseCSSDimensionValues("0%");
expect(result).to.be.deep.equal(expected);
});
it("should convert a pixel value to percentage", function() {
var expected = {
value: 26.3,
unit: "%"
},
result = CVUtils._parseCSSDimensionValues("26.3px");
console.log(result);
expect(result).to.be.deep.equal(expected);
});
});
describe("_dimensionsConverters", function(){
var context;
beforeEach(function() {
context = {
width: 640,
height: 480
};
});
it("should convert a top-value correclty", function() {
var expected = 48,
result = CVUtils._dimensionsConverters.top({value: 10, unit: "%"}, context);
expect(result).to.be.equal(expected);
});
it("should convert a right-value correclty", function() {
var expected = 640 - 128,
result = CVUtils._dimensionsConverters.right({value: 20, unit: "%"}, context);
expect(result).to.be.equal(expected);
});
it("should convert a bottom-value correclty", function() {
var expected = 480 - 77,
result = CVUtils._dimensionsConverters.bottom({value: 16, unit: "%"}, context);
expect(result).to.be.equal(expected);
});
it("should convert a left-value correclty", function() {
var expected = 57,
result = CVUtils._dimensionsConverters.left({value: 9, unit: "%"}, context);
expect(result).to.be.equal(expected);
});
});
describe("computeImageArea", function() {
it("should calculate an image-area", function() {
var expected = {
sx: 115,
sy: 48,
sw: 429,
sh: 336
},
result = CVUtils.computeImageArea(640, 480, {
top: "10%",
right: "15%",
bottom: "20%",
left: "18%"
});
expect(result).to.be.deep.equal(expected);
});
it("should calculate full image-area", function() {
var expected = {
sx: 0,
sy: 0,
sw: 640,
sh: 480
},
result = CVUtils.computeImageArea(640, 480, {
top: "0%",
right: "0%",
bottom: "0%",
left: "0%"
});
expect(result).to.be.deep.equal(expected);
});
});
});

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spec/events.spec.js
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define(['events'], function(Events){
beforeEach(function() {
Events.unsubscribe();
});
describe("subscribe", function() {
it("should call one callback for a single event", function() {
var callbackA = sinon.stub(),
callbackB = sinon.stub();
Events.subscribe("test", callbackA);
Events.subscribe("test", callbackB);
Events.publish("test");
expect(callbackA.calledOnce).to.be.equal(true);
expect(callbackB.calledOnce).to.be.equal(true);
});
it("should call one callback twice if published twice", function() {
var callback = sinon.stub();
Events.subscribe("test", callback);
Events.publish("test");
Events.publish("test");
expect(callback.calledTwice).to.be.equal(true);
});
it("should call the callback asynchronuously", function(done) {
var test = {
callback: function() {
}
};
sinon.stub(test, "callback", function() {
expect(test.callback.calledOnce).to.be.true;
done();
});
Events.subscribe("test", test.callback, true);
Events.publish("test");
expect(test.callback.called).to.be.false;
});
});
describe("once", function() {
it("should call the callback once, even when published twice", function() {
var callbackA = sinon.stub(),
callbackB = sinon.stub();
Events.once("test", callbackA);
Events.subscribe("test", callbackB);
Events.publish("test");
Events.publish("test");
expect(callbackA.calledOnce).to.be.equal(true);
expect(callbackB.calledTwice).to.be.equal(true);
});
});
describe("unsubscribe", function() {
it("should unsubscribe all callbacks from a single event", function() {
var callbackA = sinon.stub(),
callbackB = sinon.stub(),
callbackC = sinon.stub();
Events.subscribe("test", callbackA);
Events.subscribe("test", callbackB);
Events.subscribe("testC", callbackC);
Events.publish("test");
expect(callbackC.called).to.be.equal(false);
expect(callbackA.calledOnce).to.be.equal(true);
expect(callbackB.calledOnce).to.be.equal(true);
Events.publish("testC");
expect(callbackC.calledOnce).to.be.equal(true);
expect(callbackA.calledOnce).to.be.equal(true);
expect(callbackB.calledOnce).to.be.equal(true);
Events.unsubscribe("test");
Events.publish("test");
expect(callbackC.calledOnce).to.be.equal(true);
expect(callbackA.calledOnce).to.be.equal(true);
expect(callbackB.calledOnce).to.be.equal(true);
});
it("should unsubscribe a single callback from a single event", function() {
var callbackA = sinon.stub(),
callbackB = sinon.stub();
Events.subscribe("test", callbackA);
Events.subscribe("test", callbackB);
Events.publish("test");
expect(callbackA.calledOnce).to.be.equal(true);
expect(callbackB.calledOnce).to.be.equal(true);
Events.unsubscribe("test", callbackB);
Events.publish("test");
expect(callbackA.calledTwice).to.be.equal(true);
expect(callbackB.calledOnce).to.be.equal(true);
});
});
});

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spec/integration.spec.js
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define(['quagga', 'async'], function(Quagga, async) {
describe('decodeSingle', function () {
var baseFolder = "base/test/fixtures/";
function generateConfig() {
return {
inputStream: {
size: 640
},
locator: {
patchSize: "medium",
halfSample: true
},
numOfWorkers: 0,
decoder: {
readers: ["ean_reader"]
},
locate: true,
src: null
};
}
this.timeout(10000);
function _runTestSet(testSet, config) {
var readers = config.decoder.readers.slice(),
format,
folder;
if (typeof readers[0] === 'string'){
format = readers[0];
} else {
format = readers[0].format;
}
folder = baseFolder + format.split('_').slice(0, -1).join('_') + "/";
it('should decode ' + folder + " correctly", function(done) {
async.eachSeries(testSet, function (sample, callback) {
config.src = folder + sample.name;
config.readers = readers;
Quagga.decodeSingle(config, function(result) {
console.log(sample.name);
expect(result.codeResult.code).to.equal(sample.result);
expect(result.codeResult.format).to.equal(sample.format);
callback();
});
}, function() {
done();
});
});
}
describe("EAN", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "3574660239843"},
{"name": "image-002.jpg", "result": "8032754490297"},
{"name": "image-003.jpg", "result": "4006209700068"},
/* {"name": "image-004.jpg", "result": "9002233139084"}, */
/* {"name": "image-005.jpg", "result": "8004030044005"}, */
{"name": "image-006.jpg", "result": "4003626011159"},
{"name": "image-007.jpg", "result": "2111220009686"},
{"name": "image-008.jpg", "result": "9000275609022"},
{"name": "image-009.jpg", "result": "9004593978587"},
{"name": "image-010.jpg", "result": "9002244845578"}
];
testSet.forEach(function(sample) {
sample.format = "ean_13";
});
config.decoder.readers = ['ean_reader'];
_runTestSet(testSet, config);
});
describe("Code128", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "0001285112001000040801"},
// {"name": "image-002.jpg", "result": "FANAVF1461710"},
// {"name": "image-003.jpg", "result": "673023"},
// {"name": "image-004.jpg", "result": "010210150301625334"},
{"name": "image-005.jpg", "result": "419055603900009001012999"},
{"name": "image-006.jpg", "result": "419055603900009001012999"},
{"name": "image-007.jpg", "result": "T 000003552345"},
{"name": "image-008.jpg", "result": "FANAVF1461710"},
{"name": "image-009.jpg", "result": "0001285112001000040801"},
{"name": "image-010.jpg", "result": "673023"}
];
testSet.forEach(function(sample) {
sample.format = "code_128";
});
config.decoder.readers = ['code_128_reader'];
_runTestSet(testSet, config);
});
describe("Code39", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "B3% $DAD$"},
{"name": "image-003.jpg", "result": "CODE39"},
{"name": "image-004.jpg", "result": "QUAGGAJS"},
/* {"name": "image-005.jpg", "result": "CODE39"}, */
{"name": "image-006.jpg", "result": "2/4-8/16-32"},
{"name": "image-007.jpg", "result": "2/4-8/16-32"},
{"name": "image-008.jpg", "result": "CODE39"},
{"name": "image-009.jpg", "result": "2/4-8/16-32"},
{"name": "image-010.jpg", "result": "CODE39"}
];
testSet.forEach(function(sample) {
sample.format = "code_39";
});
config.decoder.readers = ['code_39_reader'];
_runTestSet(testSet, config);
});
describe("EAN-8", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "42191605"},
{"name": "image-002.jpg", "result": "42191605"},
{"name": "image-003.jpg", "result": "90311208"},
{"name": "image-004.jpg", "result": "24057257"},
{"name": "image-005.jpg", "result": "90162602"},
{"name": "image-006.jpg", "result": "24036153"},
{"name": "image-007.jpg", "result": "42176817"},
{"name": "image-008.jpg", "result": "42191605"},
{"name": "image-009.jpg", "result": "42242215"},
{"name": "image-010.jpg", "result": "42184799"}
];
testSet.forEach(function(sample) {
sample.format = "ean_8";
});
config.decoder.readers = ['ean_8_reader'];
_runTestSet(testSet, config);
});
describe("UPC", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "882428015268"},
{"name": "image-002.jpg", "result": "882428015268"},
{"name": "image-003.jpg", "result": "882428015084"},
{"name": "image-004.jpg", "result": "882428015343"},
{"name": "image-005.jpg", "result": "882428015343"},
/* {"name": "image-006.jpg", "result": "882428015046"}, */
{"name": "image-007.jpg", "result": "882428015084"},
{"name": "image-008.jpg", "result": "882428015046"},
{"name": "image-009.jpg", "result": "039047013551"},
{"name": "image-010.jpg", "result": "039047013551"}
];
testSet.forEach(function(sample) {
sample.format = "upc_a";
});
config.decoder.readers = ['upc_reader'];
_runTestSet(testSet, config);
});
describe("UPC-E", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "04965802"},
{"name": "image-002.jpg", "result": "04965802"},
{"name": "image-003.jpg", "result": "03897425"},
{"name": "image-004.jpg", "result": "05096893"},
{"name": "image-005.jpg", "result": "05096893"},
{"name": "image-006.jpg", "result": "05096893"},
{"name": "image-007.jpg", "result": "03897425"},
{"name": "image-008.jpg", "result": "01264904"},
/*{"name": "image-009.jpg", "result": "01264904"},*/
{"name": "image-010.jpg", "result": "01264904"}
];
testSet.forEach(function(sample) {
sample.format = "upc_e";
});
config.decoder.readers = ['upc_e_reader'];
_runTestSet(testSet, config);
});
describe("Codabar", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "A10/53+17-70D"},
{"name": "image-002.jpg", "result": "B546745735B"},
{"name": "image-003.jpg", "result": "C$399.95A"},
{"name": "image-004.jpg", "result": "B546745735B"},
{"name": "image-005.jpg", "result": "C$399.95A"},
{"name": "image-006.jpg", "result": "B546745735B"},
{"name": "image-007.jpg", "result": "C$399.95A"},
{"name": "image-008.jpg", "result": "A16:9/4:3/3:2D"},
{"name": "image-009.jpg", "result": "C$399.95A"},
{"name": "image-010.jpg", "result": "C$399.95A"}
];
testSet.forEach(function(sample) {
sample.format = "codabar";
});
config.decoder.readers = ['codabar_reader'];
_runTestSet(testSet, config);
});
describe("I2of5 with localization", function() {
var config = {
inputStream: {
size: 800,
singleChannel: false
},
locator: {
patchSize: "small",
halfSample: false
},
numOfWorkers: 0,
decoder: {
readers: ["i2of5_reader"],
},
locate: true,
src: null
}, testSet = [
{"name": "image-001.jpg", "result": "2167361334"},
{"name": "image-002.jpg", "result": "2167361334"},
{"name": "image-003.jpg", "result": "2167361334"},
{"name": "image-004.jpg", "result": "2167361334"},
{"name": "image-005.jpg", "result": "2167361334"}
];
testSet.forEach(function(sample) {
sample.format = "i2of5";
});
_runTestSet(testSet, config);
});
});
});

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spec/result_collector.spec.js
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define(['result_collector', 'image_debug'], function(ResultCollector, ImageDebug) {
var canvasMock,
imageSize,
config;
beforeEach(function() {
imageSize = {x: 320, y: 240};
config = {
capture: true,
capacity: 20,
blacklist: [{code: "3574660239843", format: "ean_13"}],
filter: function(codeResult) {
return true;
}
};
canvasMock = {
getContext: function() {
return {};
},
toDataURL: sinon.spy(),
width: 0,
height: 0
};
sinon.stub(document, "createElement", function(type) {
if (type === "canvas") {
return canvasMock;
}
});
});
afterEach(function() {
document.createElement.restore();
});
describe('create', function () {
it("should return a new collector", function() {
ResultCollector.create(config);
expect(document.createElement.calledOnce).to.be.equal(true);
expect(document.createElement.getCall(0).args[0]).to.equal("canvas");
});
});
describe('addResult', function() {
beforeEach(function() {
sinon.stub(ImageDebug, "drawImage", function() {});
});
afterEach(function() {
ImageDebug.drawImage.restore();
});
it("should not add result if capacity is full", function(){
config.capacity = 1;
var collector = ResultCollector.create(config);
collector.addResult([], imageSize, {});
collector.addResult([], imageSize, {});
collector.addResult([], imageSize, {});
expect(collector.getResults()).to.have.length(1);
});
it("should only add results which match constraints", function(){
var collector = ResultCollector.create(config),
results;
collector.addResult([], imageSize, {code: "423423443", format: "ean_13"});
collector.addResult([], imageSize, {code: "3574660239843", format: "ean_13"});
collector.addResult([], imageSize, {code: "3574660239843", format: "code_128"});
results = collector.getResults();
expect(results).to.have.length(2);
results.forEach(function(result) {
expect(result).not.to.deep.equal(config.blacklist[0]);
});
});
it("should add result if no filter is set", function() {
delete config.filter;
var collector = ResultCollector.create(config);
collector.addResult([], imageSize, {code: "423423443", format: "ean_13"});
expect(collector.getResults()).to.have.length(1);
});
it("should not add results if filter returns false", function() {
config.filter = function(){ return false };
var collector = ResultCollector.create(config);
collector.addResult([], imageSize, {code: "423423443", format: "ean_13"});
expect(collector.getResults()).to.have.length(0);
});
it("should add result if no blacklist is set", function() {
delete config.blacklist;
var collector = ResultCollector.create(config);
collector.addResult([], imageSize, {code: "3574660239843", format: "ean_13"});
expect(collector.getResults()).to.have.length(1);
});
});
});

25
src/array_helper.js
Unescape Escape View File

@ -1,11 +1,5 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
define(function() {
"use strict";
return {
init : function(arr, val) {
export default {
init: function(arr, val) {
var l = arr.length;
while (l--) {
arr[l] = val;
@ -16,7 +10,7 @@ define(function() {
* Shuffles the content of an array
* @return {Array} the array itself shuffled
*/
shuffle : function(arr) {
shuffle: function(arr) {
var i = arr.length - 1, j, x;
for (i; i >= 0; i--) {
j = Math.floor(Math.random() * i);
@ -27,7 +21,7 @@ define(function() {
return arr;
},
toPointList : function(arr) {
toPointList: function(arr) {
var i, j, row = [], rows = [];
for ( i = 0; i < arr.length; i++) {
row = [];
@ -43,7 +37,7 @@ define(function() {
* returns the elements which's score is bigger than the threshold
* @return {Array} the reduced array
*/
threshold : function(arr, threshold, scoreFunc) {
threshold: function(arr, threshold, scoreFunc) {
var i, queue = [];
for ( i = 0; i < arr.length; i++) {
if (scoreFunc.apply(arr, [arr[i]]) >= threshold) {
@ -53,7 +47,7 @@ define(function() {
return queue;
},
maxIndex : function(arr) {
maxIndex: function(arr) {
var i, max = 0;
for ( i = 0; i < arr.length; i++) {
if (arr[i] > arr[max]) {
@ -63,7 +57,7 @@ define(function() {
return max;
},
max : function(arr) {
max: function(arr) {
var i, max = 0;
for ( i = 0; i < arr.length; i++) {
if (arr[i] > max) {
@ -77,10 +71,9 @@ define(function() {
var length = arr.length,
sum = 0;
while(length--) {
while (length--) {
sum += arr[length];
}
return sum;
}
};
});
};

135
src/barcode_decoder.js
Unescape Escape View File

@ -1,33 +1,16 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import Bresenham from './bresenham';
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([
"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 = {
const READERS = {
code_128_reader: Code128Reader,
ean_reader: EANReader,
ean_8_reader: EAN8Reader,
@ -37,19 +20,19 @@ define([
upc_reader: UPCReader,
upc_e_reader: UPCEReader,
i2of5_reader: I2of5Reader
};
var BarcodeDecoder = {
create : function(config, inputImageWrapper) {
};
export default {
create: function(config, inputImageWrapper) {
var _canvas = {
ctx : {
frequency : null,
pattern : null,
overlay : null
ctx: {
frequency: null,
pattern: null,
overlay: null
},
dom : {
frequency : null,
pattern : null,
overlay : null
dom: {
frequency: null,
pattern: null,
overlay: null
}
},
_barcodeReaders = [];
@ -65,7 +48,7 @@ define([
if (!_canvas.dom.frequency) {
_canvas.dom.frequency = document.createElement("canvas");
_canvas.dom.frequency.className = "frequency";
if($debug) {
if ($debug) {
$debug.appendChild(_canvas.dom.frequency);
}
}
@ -75,7 +58,7 @@ define([
if (!_canvas.dom.pattern) {
_canvas.dom.pattern = document.createElement("canvas");
_canvas.dom.pattern.className = "patternBuffer";
if($debug) {
if ($debug) {
$debug.appendChild(_canvas.dom.pattern);
}
}
@ -91,18 +74,19 @@ define([
function initReaders() {
config.readers.forEach(function(readerConfig) {
var reader,
config = {};
configuration = {};
if (typeof readerConfig === 'object') {
reader = readerConfig.format;
config = readerConfig.config;
configuration = readerConfig.config;
} else if (typeof readerConfig === 'string') {
reader = readerConfig;
}
_barcodeReaders.push(new readers[reader](config));
console.log("Before registering reader: ", reader);
_barcodeReaders.push(new READERS[reader](configuration));
});
console.log("Registered Readers: " + _barcodeReaders
.map(function(reader) {return JSON.stringify({format: reader.FORMAT, config: reader.config});})
.map((reader) => JSON.stringify({format: reader.FORMAT, config: reader.config}))
.join(', '));
}
@ -110,11 +94,11 @@ define([
if (typeof document !== 'undefined') {
var i,
vis = [{
node : _canvas.dom.frequency,
prop : config.showFrequency
node: _canvas.dom.frequency,
prop: config.showFrequency
}, {
node : _canvas.dom.pattern,
prop : config.showPattern
node: _canvas.dom.pattern,
prop: config.showPattern
}];
for (i = 0; i < vis.length; i++) {
@ -135,8 +119,8 @@ define([
function getExtendedLine(line, angle, ext) {
function extendLine(amount) {
var extension = {
y : amount * Math.sin(angle),
x : amount * Math.cos(angle)
y: amount * Math.sin(angle),
x: amount * Math.cos(angle)
};
line[0].y -= extension.y;
@ -147,8 +131,9 @@ define([
// check if inside image
extendLine(ext);
while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0))) {
ext -= Math.ceil(ext/2);
while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0)
|| !inputImageWrapper.inImageWithBorder(line[1], 0))) {
ext -= Math.ceil(ext / 2);
extendLine(-ext);
}
return line;
@ -156,11 +141,11 @@ define([
function getLine(box) {
return [{
x : (box[1][0] - box[0][0]) / 2 + box[0][0],
y : (box[1][1] - box[0][1]) / 2 + box[0][1]
x: (box[1][0] - box[0][0]) / 2 + box[0][0],
y: (box[1][1] - box[0][1]) / 2 + box[0][1]
}, {
x : (box[3][0] - box[2][0]) / 2 + box[2][0],
y : (box[3][1] - box[2][1]) / 2 + box[2][1]
x: (box[3][0] - box[2][0]) / 2 + box[2][0],
y: (box[3][1] - box[2][1]) / 2 + box[2][1]
}];
}
@ -181,14 +166,13 @@ define([
for ( i = 0; i < _barcodeReaders.length && result === null; i++) {
result = _barcodeReaders[i].decodePattern(barcodeLine.line);
}
if(result === null){
if (result === null){
return null;
}
return {
codeResult: result,
barcodeLine: barcodeLine
};
}
/**
@ -212,8 +196,8 @@ define([
// move line perpendicular to angle
dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1);
extension = {
y : dir * xdir,
x : dir * ydir
y: dir * xdir,
x: dir * ydir
};
line[0].y += extension.x;
line[0].x -= extension.y;
@ -251,17 +235,17 @@ define([
line = getLine(box);
lineLength = getLineLength(line);
lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x);
line = getExtendedLine(line, lineAngle, Math.floor(lineLength*0.1));
if(line === null){
line = getExtendedLine(line, lineAngle, Math.floor(lineLength * 0.1));
if (line === null){
return null;
}
result = tryDecode(line);
if(result === null) {
if (result === null) {
result = tryDecodeBruteForce(box, line, lineAngle);
}
if(result === null) {
if (result === null) {
return null;
}
@ -270,19 +254,19 @@ define([
}
return {
codeResult : result.codeResult,
line : line,
angle : lineAngle,
pattern : result.barcodeLine.line,
threshold : result.barcodeLine.threshold
codeResult: result.codeResult,
line: line,
angle: lineAngle,
pattern: result.barcodeLine.line,
threshold: result.barcodeLine.threshold
};
}
return {
decodeFromBoundingBox : function(box) {
decodeFromBoundingBox: function(box) {
return decodeFromBoundingBox(box);
},
decodeFromBoundingBoxes : function(boxes) {
decodeFromBoundingBoxes: function(boxes) {
var i, result;
for ( i = 0; i < boxes.length; i++) {
result = decodeFromBoundingBox(boxes[i]);
@ -299,7 +283,4 @@ define([
}
};
}
};
return (BarcodeDecoder);
});
};

203
src/barcode_locator.js
Unescape Escape View File

@ -1,10 +1,13 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
define("barcode_locator", ["image_wrapper", "cv_utils", "rasterizer", "tracer", "skeletonizer", "array_helper", "image_debug", "gl-matrix"],
function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, ImageDebug, glMatrix) {
var _config,
import ImageWrapper from './image_wrapper';
import CVUtils from './cv_utils';
import Rasterizer from './rasterizer';
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,
_skelImageWrapper,
_subImageWrapper,
@ -15,27 +18,26 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
_binaryImageWrapper,
_patchSize,
_canvasContainer = {
ctx : {
binary : null
ctx: {
binary: null
},
dom : {
binary : null
dom: {
binary: null
}
},
_numPatches = {x: 0, y: 0},
_inputImageWrapper,
_skeletonizer,
vec2 = glMatrix.vec2,
mat2 = glMatrix.mat2,
self = this;
mat2 = glMatrix.mat2;
function initBuffers() {
function initBuffers() {
var skeletonImageData;
if (_config.halfSample) {
_currentImageWrapper = new ImageWrapper({
x : _inputImageWrapper.size.x / 2 | 0,
y : _inputImageWrapper.size.y / 2 | 0
x: _inputImageWrapper.size.x / 2 | 0,
y: _inputImageWrapper.size.y / 2 | 0
});
} else {
_currentImageWrapper = _inputImageWrapper;
@ -50,22 +52,25 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
_labelImageWrapper = new ImageWrapper(_patchSize, undefined, Array, true);
skeletonImageData = new ArrayBuffer(64*1024);
_subImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y));
_skelImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true);
_skeletonizer = skeletonizer(self, {
size : _patchSize.x
skeletonImageData = new ArrayBuffer(64 * 1024);
_subImageWrapper = new ImageWrapper(_patchSize,
new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y));
_skelImageWrapper = new ImageWrapper(_patchSize,
new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y),
undefined, true);
_skeletonizer = skeletonizer((typeof window !== 'undefined') ? window : (typeof self !== 'undefined') ? self : global, {
size: _patchSize.x
}, skeletonImageData);
_imageToPatchGrid = new ImageWrapper({
x : (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0,
y : (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0
x: (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0,
y: (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0
}, undefined, Array, true);
_patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true);
_patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true);
}
}
function initCanvas() {
function initCanvas() {
if (_config.useWorker || typeof document === 'undefined') {
return;
}
@ -77,14 +82,25 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
_canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext("2d");
_canvasContainer.dom.binary.width = _binaryImageWrapper.size.x;
_canvasContainer.dom.binary.height = _binaryImageWrapper.size.y;
}
}
/**
/**
* Creates a bounding box which encloses all the given patches
* @returns {Array} The minimal bounding box
*/
function boxFromPatches(patches) {
var overAvg, i, j, patch, transMat, minx = _binaryImageWrapper.size.x, miny = _binaryImageWrapper.size.y, maxx = -_binaryImageWrapper.size.x, maxy = -_binaryImageWrapper.size.y, box, scale;
function boxFromPatches(patches) {
var overAvg,
i,
j,
patch,
transMat,
minx =
_binaryImageWrapper.size.x,
miny = _binaryImageWrapper.size.y,
maxx = -_binaryImageWrapper.size.x,
maxy = -_binaryImageWrapper.size.y,
box,
scale;
// draw all patches which are to be taken into consideration
overAvg = 0;
@ -158,24 +174,24 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
}
return box;
}
}
/**
/**
* Creates a binary image of the current image
*/
function binarizeImage() {
function binarizeImage() {
CVUtils.otsuThreshold(_currentImageWrapper, _binaryImageWrapper);
_binaryImageWrapper.zeroBorder();
if (_config.showCanvas) {
_binaryImageWrapper.show(_canvasContainer.dom.binary, 255);
}
}
}
/**
/**
* Iterate over the entire image
* extract patches
*/
function findPatches() {
function findPatches() {
var i,
j,
x,
@ -185,9 +201,8 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
rasterizer,
rasterResult,
patch;
for ( i = 0; i < _numPatches.x; i++) {
for ( j = 0; j < _numPatches.y; j++) {
for (i = 0; i < _numPatches.x; i++) {
for (j = 0; j < _numPatches.y; j++) {
x = _subImageWrapper.size.x * i;
y = _subImageWrapper.size.y * j;
@ -201,7 +216,8 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
rasterResult = rasterizer.rasterize(0);
if (_config.showLabels) {
_labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), {x : x, y : y});
_labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count),
{x: x, y: y});
}
// calculate moments from the skeletonized patch
@ -215,19 +231,20 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
if (_config.showFoundPatches) {
for ( i = 0; i < patchesFound.length; i++) {
patch = patchesFound[i];
ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "#99ff00", lineWidth: 2});
ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary,
{color: "#99ff00", lineWidth: 2});
}
}
return patchesFound;
}
}
/**
/**
* Finds those connected areas which contain at least 6 patches
* and returns them ordered DESC by the number of contained patches
* @param {Number} maxLabel
*/
function findBiggestConnectedAreas(maxLabel){
function findBiggestConnectedAreas(maxLabel){
var i,
sum,
labelHist = [],
@ -245,8 +262,8 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
labelHist = labelHist.map(function(val, idx) {
return {
val : val,
label : idx + 1
val: val,
label: idx + 1
};
});
@ -260,12 +277,12 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
});
return topLabels;
}
}
/**
/**
*
*/
function findBoxes(topLabels, maxLabel) {
function findBoxes(topLabels, maxLabel) {
var i,
j,
sum,
@ -295,19 +312,20 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
patch = patches[j];
hsv[0] = (topLabels[i].label / (maxLabel + 1)) * 360;
CVUtils.hsv2rgb(hsv, rgb);
ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2});
ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary,
{color: "rgb(" + rgb.join(",") + ")", lineWidth: 2});
}
}
}
}
return boxes;
}
}
/**
/**
* Find similar moments (via cluster)
* @param {Object} moments
*/
function similarMoments(moments) {
function similarMoments(moments) {
var clusters = CVUtils.cluster(moments, 0.90);
var topCluster = CVUtils.topGeneric(clusters, 1, function(e) {
return e.getPoints().length;
@ -320,9 +338,9 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
}
}
return result;
}
}
function skeletonize(x, y) {
function skeletonize(x, y) {
_binaryImageWrapper.subImageAsCopy(_subImageWrapper, CVUtils.imageRef(x, y));
_skeletonizer.skeletonize();
@ -330,9 +348,9 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
if (_config.showSkeleton) {
_skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, CVUtils.imageRef(x, y));
}
}
}
/**
/**
* Extracts and describes those patches which seem to contain a barcode pattern
* @param {Array} moments
* @param {Object} patchPos,
@ -340,15 +358,14 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
* @param {Number} y
* @returns {Array} list of patches
*/
function describePatch(moments, patchPos, x, y) {
function describePatch(moments, patchPos, x, y) {
var k,
avg,
sum = 0,
eligibleMoments = [],
matchingMoments,
patch,
patchesFound = [],
minComponentWeight = Math.ceil(_patchSize.x/3);
minComponentWeight = Math.ceil(_patchSize.x / 3);
if (moments.length >= 2) {
// only collect moments which's area covers at least minComponentWeight pixels.
@ -360,7 +377,6 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
// if at least 2 moments are found which have at least minComponentWeights covered
if (eligibleMoments.length >= 2) {
sum = eligibleMoments.length;
matchingMoments = similarMoments(eligibleMoments);
avg = 0;
// determine the similarity of the moments
@ -370,31 +386,38 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
// Only two of the moments are allowed not to fit into the equation
// add the patch to the set
if (matchingMoments.length > 1 && matchingMoments.length >= (eligibleMoments.length / 4) * 3 && matchingMoments.length > moments.length / 4) {
if (matchingMoments.length > 1
&& matchingMoments.length >= (eligibleMoments.length / 4) * 3
&& matchingMoments.length > moments.length / 4) {
avg /= matchingMoments.length;
patch = {
index : patchPos[1] * _numPatches.x + patchPos[0],
pos : {
x : x,
y : y
index: patchPos[1] * _numPatches.x + patchPos[0],
pos: {
x: x,
y: y
},
box : [vec2.clone([x, y]), vec2.clone([x + _subImageWrapper.size.x, y]), vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), vec2.clone([x, y + _subImageWrapper.size.y])],
moments : matchingMoments,
rad : avg,
vec : vec2.clone([Math.cos(avg), Math.sin(avg)])
box: [
vec2.clone([x, y]),
vec2.clone([x + _subImageWrapper.size.x, y]),
vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]),
vec2.clone([x, y + _subImageWrapper.size.y])
],
moments: matchingMoments,
rad: avg,
vec: vec2.clone([Math.cos(avg), Math.sin(avg)])
};
patchesFound.push(patch);
}
}
}
return patchesFound;
}
}
/**
/**
* finds patches which are connected and share the same orientation
* @param {Object} patchesFound
*/
function rasterizeAngularSimilarity(patchesFound) {
function rasterizeAngularSimilarity(patchesFound) {
var label = 0,
threshold = 0.95,
currIdx = 0,
@ -414,10 +437,16 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
}
function trace(currentIdx) {
var x, y, currentPatch, patch, idx, dir, current = {
x : currentIdx % _patchLabelGrid.size.x,
y : (currentIdx / _patchLabelGrid.size.x) | 0
}, similarity;
var x,
y,
currentPatch,
idx,
dir,
current = {
x: currentIdx % _patchLabelGrid.size.x,
y: (currentIdx / _patchLabelGrid.size.x) | 0
},
similarity;
if (currentIdx < _patchLabelGrid.data.length) {
currentPatch = _imageToPatchGrid.data[currentIdx];
@ -434,9 +463,8 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
continue;
}
patch = _imageToPatchGrid.data[idx];
if (_patchLabelGrid.data[idx] === 0) {
similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec));
similarity = Math.abs(vec2.dot(_imageToPatchGrid.data[idx].vec, currentPatch.vec));
if (similarity > threshold) {
trace(idx);
}
@ -471,16 +499,17 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
patch = _imageToPatchGrid.data[j];
hsv[0] = (_patchLabelGrid.data[j] / (label + 1)) * 360;
CVUtils.hsv2rgb(hsv, rgb);
ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2});
ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary,
{color: "rgb(" + rgb.join(",") + ")", lineWidth: 2});
}
}
}
return label;
}
}
return {
init : function(inputImageWrapper, config) {
export default {
init: function(inputImageWrapper, config) {
_config = config;
_inputImageWrapper = inputImageWrapper;
@ -488,7 +517,7 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
initCanvas();
},
locate : function() {
locate: function() {
var patchesFound,
topLabels,
boxes;
@ -545,8 +574,8 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
patchSize = CVUtils.calculatePatchSize(config.patchSize, size);
console.log("Patch-Size: " + JSON.stringify(patchSize));
inputStream.setWidth(Math.floor(Math.floor(size.x/patchSize.x)*(1/halfSample)*patchSize.x));
inputStream.setHeight(Math.floor(Math.floor(size.y/patchSize.y)*(1/halfSample)*patchSize.y));
inputStream.setWidth(Math.floor(Math.floor(size.x / patchSize.x) * (1 / halfSample) * patchSize.x));
inputStream.setHeight(Math.floor(Math.floor(size.y / patchSize.y) * (1 / halfSample) * patchSize.y));
if ((inputStream.getWidth() % patchSize.x) === 0 && (inputStream.getHeight() % patchSize.y) === 0) {
return true;
@ -556,6 +585,4 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
width + " )and height (" + height +
") must a multiple of " + patchSize.x);
}
};
});
};

81
src/barcode_reader.js
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@ -1,17 +1,10 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
define(
function() {
"use strict";
function BarcodeReader(config) {
function BarcodeReader(config) {
this._row = [];
this.config = config || {};
return this;
}
}
BarcodeReader.prototype._nextUnset = function(line, start) {
BarcodeReader.prototype._nextUnset = function(line, start) {
var i;
if (start === undefined) {
@ -23,9 +16,9 @@ define(
}
}
return line.length;
};
};
BarcodeReader.prototype._matchPattern = function(counter, code) {
BarcodeReader.prototype._matchPattern = function(counter, code) {
var i,
error = 0,
singleError = 0,
@ -39,10 +32,10 @@ define(
}
error += singleError;
}
return error/modulo;
};
return error / modulo;
};
BarcodeReader.prototype._nextSet = function(line, offset) {
BarcodeReader.prototype._nextSet = function(line, offset) {
var i;
offset = offset || 0;
@ -52,9 +45,9 @@ define(
}
}
return line.length;
};
};
BarcodeReader.prototype._normalize = function(counter, modulo) {
BarcodeReader.prototype._normalize = function(counter, modulo) {
var i,
self = this,
sum = 0,
@ -80,16 +73,16 @@ define(
normalized.push(norm);
}
} else {
ratio = (sum + numOnes)/modulo;
ratio = (sum + numOnes) / modulo;
for (i = 0; i < counter.length; i++) {
norm = counter[i] / ratio;
normalized.push(norm);
}
}
return normalized;
};
};
BarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) {
BarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) {
var counter = [],
i,
self = this,
@ -97,9 +90,9 @@ define(
isWhite = !self._row[offset],
counterPos = 0,
bestMatch = {
error : Number.MAX_VALUE,
code : -1,
start : 0
error: Number.MAX_VALUE,
code: -1,
start: 0
},
error;
@ -148,9 +141,9 @@ define(
bestMatch.end = self._row.length - 1;
bestMatch.counter = counter;
return bestMatch;
};
};
BarcodeReader.prototype.decodePattern = function(pattern) {
BarcodeReader.prototype.decodePattern = function(pattern) {
var self = this,
result;
@ -171,9 +164,9 @@ define(
result.format = self.FORMAT;
}
return result;
};
};
BarcodeReader.prototype._matchRange = function(start, end, value) {
BarcodeReader.prototype._matchRange = function(start, end, value) {
var i;
start = start < 0 ? 0 : start;
@ -183,9 +176,9 @@ define(
}
}
return true;
};
};
BarcodeReader.prototype._fillCounters = function(offset, end, isWhite) {
BarcodeReader.prototype._fillCounters = function(offset, end, isWhite) {
var self = this,
counterPos = 0,
i,
@ -206,26 +199,24 @@ define(
}
}
return counters;
};
};
Object.defineProperty(BarcodeReader.prototype, "FORMAT", {
Object.defineProperty(BarcodeReader.prototype, "FORMAT", {
value: 'unknown',
writeable: false
});
});
BarcodeReader.DIRECTION = {
FORWARD : 1,
REVERSE : -1
};
BarcodeReader.DIRECTION = {
FORWARD: 1,
REVERSE: -1
};
BarcodeReader.Exception = {
StartNotFoundException : "Start-Info was not found!",
CodeNotFoundException : "Code could not be found!",
PatternNotFoundException : "Pattern could not be found!"
};
BarcodeReader.Exception = {
StartNotFoundException: "Start-Info was not found!",
CodeNotFoundException: "Code could not be found!",
PatternNotFoundException: "Pattern could not be found!"
};
BarcodeReader.CONFIG_KEYS = {};
BarcodeReader.CONFIG_KEYS = {};
return (BarcodeReader);
}
);
export default BarcodeReader;

72
src/bresenham.js
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@ -1,17 +1,15 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import CVUtils from './cv_utils';
import ImageWrapper from './image_wrapper';
define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
"use strict";
var Bresenham = {};
var Bresenham = {};
var Slope = {
DIR : {
UP : 1,
DOWN : -1
var Slope = {
DIR: {
UP: 1,
DOWN: -1
}
};
/**
};
/**
* Scans a line of the given image from point p1 to p2 and returns a result object containing
* gray-scale values (0-255) of the underlying pixels in addition to the min
* and max values.
@ -20,7 +18,7 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
* @param {Object} p2 The end point {x,y}
* @returns {line, min, max}
*/
Bresenham.getBarcodeLine = function(imageWrapper, p1, p2) {
Bresenham.getBarcodeLine = function(imageWrapper, p1, p2) {
var x0 = p1.x | 0,
y0 = p1.y | 0,
x1 = p2.x | 0,
@ -73,7 +71,7 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
y = y0;
ystep = y0 < y1 ? 1 : -1;
for ( x = x0; x < x1; x++) {
if(steep){
if (steep){
read(y, x);
} else {
read(x, y);
@ -86,13 +84,13 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
}
return {
line : line,
min : min,
max : max
};
line: line,
min: min,
max: max
};
};
Bresenham.toOtsuBinaryLine = function(result) {
Bresenham.toOtsuBinaryLine = function(result) {
var line = result.line,
image = new ImageWrapper({x: line.length - 1, y: 1}, line),
threshold = CVUtils.determineOtsuThreshold(image, 5);
@ -104,15 +102,14 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
line: line,
threshold: threshold
};
};
};
/**
/**
* Converts the result from getBarcodeLine into a binary representation
* also considering the frequency and slope of the signal for more robust results
* @param {Object} result {line, min, max}
*/
Bresenham.toBinaryLine = function(result) {
Bresenham.toBinaryLine = function(result) {
var min = result.min,
max = result.max,
line = result.line,
@ -130,15 +127,15 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
// 1. find extrema
currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN;
extrema.push({
pos : 0,
val : line[0]
pos: 0,
val: line[0]
});
for ( i = 0; i < line.length - 2; i++) {
slope = (line[i + 1] - line[i]);
slope2 = (line[i + 2] - line[i + 1]);
if ((slope + slope2) < rThreshold && line[i + 1] < (center*1.5)) {
if ((slope + slope2) < rThreshold && line[i + 1] < (center * 1.5)) {
dir = Slope.DIR.DOWN;
} else if ((slope + slope2) > threshold && line[i + 1] > (center*0.5)) {
} else if ((slope + slope2) > threshold && line[i + 1] > (center * 0.5)) {
dir = Slope.DIR.UP;
} else {
dir = currentDir;
@ -146,15 +143,15 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
if (currentDir !== dir) {
extrema.push({
pos : i,
val : line[i]
pos: i,
val: line[i]
});
currentDir = dir;
}
}
extrema.push({
pos : line.length,
val : line[line.length - 1]
pos: line.length,
val: line[line.length - 1]
});
for ( j = extrema[0].pos; j < extrema[1].pos; j++) {
@ -175,15 +172,15 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
}
return {
line : line,
threshold : threshold
};
line: line,
threshold: threshold
};
};
/**
/**
* Used for development only
*/
Bresenham.debug = {
Bresenham.debug = {
printFrequency: function(line, canvas) {
var i,
ctx = canvas.getContext("2d");
@ -211,7 +208,6 @@ define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) {
}
}
}
};
};
return (Bresenham);
});
export default Bresenham;

50
src/camera_access.js
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@ -1,18 +1,15 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define, MediaStreamTrack */
const merge = require('lodash/object/merge');
define(["html_utils"], function(HtmlUtils) {
"use strict";
var streamRef,
var streamRef,
loadedDataHandler;
/**
/**
* Wraps browser-specific getUserMedia
* @param {Object} constraints
* @param {Object} success Callback
* @param {Object} failure Callback
*/
function getUserMedia(constraints, success, failure) {
function getUserMedia(constraints, success, failure) {
if (typeof navigator.getUserMedia !== 'undefined') {
navigator.getUserMedia(constraints, function (stream) {
streamRef = stream;
@ -22,9 +19,9 @@ define(["html_utils"], function(HtmlUtils) {
} else {
failure(new TypeError("getUserMedia not available"));
}
}
}
function loadedData(video, callback) {
function loadedData(video, callback) {
var attempts = 10;
function checkVideo() {
@ -41,16 +38,16 @@ define(["html_utils"], function(HtmlUtils) {
attempts--;
}
checkVideo();
}
}
/**
/**
* Tries to attach the camera-stream to a given video-element
* and calls the callback function when the content is ready
* @param {Object} constraints
* @param {Object} video
* @param {Object} callback
*/
function initCamera(constraints, video, callback) {
function initCamera(constraints, video, callback) {
getUserMedia(constraints, function(src) {
video.src = src;
if (loadedDataHandler) {
@ -62,20 +59,20 @@ define(["html_utils"], function(HtmlUtils) {
}, function(e) {
callback(e);
});
}
}
/**
/**
* Normalizes the incoming constraints to satisfy the current browser
* @param config
* @param cb Callback which is called whenever constraints are created
* @returns {*}
*/
function normalizeConstraints(config, cb) {
function normalizeConstraints(config, cb) {
var constraints = {
audio: false,
video: true
},
videoConstraints = HtmlUtils.mergeObjects({
videoConstraints = merge({
width: 640,
height: 480,
minAspectRatio: 0,
@ -86,9 +83,9 @@ define(["html_utils"], function(HtmlUtils) {
if ( typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') {
MediaStreamTrack.getSources(function(sourceInfos) {
var videoSourceId;
for (var i = 0; i != sourceInfos.length; ++i) {
for (var i = 0; i < sourceInfos.length; ++i) {
var sourceInfo = sourceInfos[i];
if (sourceInfo.kind == "video" && sourceInfo.facing == videoConstraints.facing) {
if (sourceInfo.kind === "video" && sourceInfo.facing === videoConstraints.facing) {
videoSourceId = sourceInfo.id;
}
}
@ -114,30 +111,29 @@ define(["html_utils"], function(HtmlUtils) {
};
return cb(constraints);
}
}
}
/**
/**
* 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.
* @param {Object} video
* @param {Object} callback
*/
function request(video, videoConstraints, callback) {
function request(video, videoConstraints, callback) {
normalizeConstraints(videoConstraints, function(constraints) {
initCamera(constraints, video, callback);
});
}
}
return {
request : function(video, constraints, callback) {
export default {
request: function(video, constraints, callback) {
request(video, constraints, callback);
},
release : function() {
release: function() {
var tracks = streamRef && streamRef.getVideoTracks();
if (tracks.length) {
tracks[0].stop();
}
streamRef = null;
}
};
});
};

55
src/cluster.js
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@ -1,28 +1,24 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
define(["gl-matrix"], function(glMatrix) {
"use strict";
var vec2 = glMatrix.vec2;
import {vec2} from 'gl-matrix';
/**
* Creates a cluster for grouping similar orientations of datapoints
*/
var Cluster = {
create : function(point, threshold) {
var points = [], center = {
rad : 0,
vec : vec2.clone([0, 0])
}, pointMap = {};
export default {
create: function(point, threshold) {
var points = [],
center = {
rad: 0,
vec: vec2.clone([0, 0])
},
pointMap = {};
function init() {
add(point);
updateCenter();
}
function add(point) {
pointMap[point.id] = point;
points.push(point);
function add(pointToAdd) {
pointMap[pointToAdd.id] = pointToAdd;
points.push(pointToAdd);
}
function updateCenter() {
@ -37,36 +33,33 @@ define(["gl-matrix"], function(glMatrix) {
init();
return {
add : function(point) {
if (!pointMap[point.id]) {
add(point);
add: function(pointToAdd) {
if (!pointMap[pointToAdd.id]) {
add(pointToAdd);
updateCenter();
}
},
fits : function(point) {
fits: function(otherPoint) {
// check cosine similarity to center-angle
var similarity = Math.abs(vec2.dot(point.point.vec, center.vec));
var similarity = Math.abs(vec2.dot(otherPoint.point.vec, center.vec));
if (similarity > threshold) {
return true;
}
return false;
},
getPoints : function() {
getPoints: function() {
return points;
},
getCenter : function() {
getCenter: function() {
return center;
}
};
},
createPoint : function(point, id, property) {
createPoint: function(newPoint, id, property) {
return {
rad : point[property],
point : point,
id : id
rad: newPoint[property],
point: newPoint,
id: id
};
}
};
return (Cluster);
});
};

104
src/codabar_reader.js
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@ -1,33 +1,26 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import BarcodeReader from './barcode_reader';
define(
[
"./barcode_reader"
],
function(BarcodeReader) {
"use strict";
function CodabarReader() {
function CodabarReader() {
BarcodeReader.call(this);
this._counters = [];
}
}
var properties = {
var properties = {
ALPHABETH_STRING: {value: "0123456789-$:/.+ABCD"},
ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68]},
CHARACTER_ENCODINGS: {value: [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]},
START_END: {value: [0x01A, 0x029, 0x00B, 0x00E]},
MIN_ENCODED_CHARS: {value: 4},
MAX_ACCEPTABLE: {value: 2.0},
PADDING: {value: 1.5},
FORMAT: {value: "codabar", writeable: false}
};
};
CodabarReader.prototype = Object.create(BarcodeReader.prototype, properties);
CodabarReader.prototype.constructor = CodabarReader;
CodabarReader.prototype = Object.create(BarcodeReader.prototype, properties);
CodabarReader.prototype.constructor = CodabarReader;
CodabarReader.prototype._decode = function() {
CodabarReader.prototype._decode = function() {
var self = this,
result = [],
start,
@ -57,7 +50,7 @@ define(
if (result.length > 1 && self._isStartEnd(pattern)) {
break;
}
} while(nextStart < self._counters.length);
} while (nextStart < self._counters.length);
// verify end
if ((result.length - 2) < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) {
@ -77,24 +70,26 @@ define(
end = start.start + self._sumCounters(start.startCounter, nextStart - 8);
return {
code : result.join(""),
start : start.start,
end : end,
startInfo : start,
decodedCodes : result
};
code: result.join(""),
start: start.start,
end: end,
startInfo: start,
decodedCodes: result
};
};
CodabarReader.prototype._verifyWhitespace = function(startCounter, endCounter) {
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)) {
CodabarReader.prototype._verifyWhitespace = function(startCounter, endCounter) {
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)) {
return true;
}
}
return false;
};
};
CodabarReader.prototype._calculatePatternLength = function(offset) {
CodabarReader.prototype._calculatePatternLength = function(offset) {
var i,
sum = 0;
@ -103,9 +98,9 @@ define(
}
return sum;
};
};
CodabarReader.prototype._thresholdResultPattern = function(result, startCounter){
CodabarReader.prototype._thresholdResultPattern = function(result, startCounter){
var self = this,
categorization = {
space: {
@ -137,16 +132,17 @@ define(
}
["space", "bar"].forEach(function(key) {
var kind = categorization[key];
kind.wide.min = Math.floor((kind.narrow.size/kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2);
kind.narrow.max = Math.ceil(kind.wide.min);
kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts);
var newkind = categorization[key];
newkind.wide.min =
Math.floor((newkind.narrow.size / newkind.narrow.counts + newkind.wide.size / newkind.wide.counts) / 2);
newkind.narrow.max = Math.ceil(newkind.wide.min);
newkind.wide.max = Math.ceil((newkind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / newkind.wide.counts);
});
return categorization;
};
};
CodabarReader.prototype._charToPattern = function(char) {
CodabarReader.prototype._charToPattern = function(char) {
var self = this,
charCode = char.charCodeAt(0),
i;
@ -157,9 +153,9 @@ define(
}
}
return 0x0;
};
};
CodabarReader.prototype._validateResult = function(result, startCounter) {
CodabarReader.prototype._validateResult = function(result, startCounter) {
var self = this,
thresholds = self._thresholdResultPattern(result, startCounter),
i,
@ -184,9 +180,9 @@ define(
pos += 8;
}
return true;
};
};
CodabarReader.prototype._patternToChar = function(pattern) {
CodabarReader.prototype._patternToChar = function(pattern) {
var i,
self = this;
@ -196,9 +192,9 @@ define(
}
}
return -1;
};
};
CodabarReader.prototype._computeAlternatingThreshold = function(offset, end) {
CodabarReader.prototype._computeAlternatingThreshold = function(offset, end) {
var i,
min = Number.MAX_VALUE,
max = 0,
@ -215,9 +211,9 @@ define(
}
return ((min + max) / 2.0) | 0;
};
};
CodabarReader.prototype._toPattern = function(offset) {
CodabarReader.prototype._toPattern = function(offset) {
var numCounters = 7,
end = offset + numCounters,
barThreshold,
@ -243,9 +239,9 @@ define(
}
return pattern;
};
};
CodabarReader.prototype._isStartEnd = function(pattern) {
CodabarReader.prototype._isStartEnd = function(pattern) {
var i;
for (i = 0; i < this.START_END.length; i++) {
@ -254,9 +250,9 @@ define(
}
}
return false;
};
};
CodabarReader.prototype._sumCounters = function(start, end) {
CodabarReader.prototype._sumCounters = function(start, end) {
var i,
sum = 0;
@ -264,9 +260,9 @@ define(
sum += this._counters[i];
}
return sum;
};
};
CodabarReader.prototype._findStart = function() {
CodabarReader.prototype._findStart = function() {
var self = this,
i,
pattern,
@ -287,8 +283,6 @@ define(
};
}
}
};
};
return (CodabarReader);
}
);
export default CodabarReader;

116
src/code_128_reader.js
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@ -1,28 +1,20 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import BarcodeReader from './barcode_reader';
define(
[
"./barcode_reader"
],
function(BarcodeReader) {
"use strict";
function Code128Reader() {
function Code128Reader() {
BarcodeReader.call(this);
}
}
var properties = {
CODE_SHIFT : {value: 98},
CODE_C : {value: 99},
CODE_B : {value: 100},
CODE_A : {value: 101},
START_CODE_A : {value: 103},
START_CODE_B : {value: 104},
START_CODE_C : {value: 105},
STOP_CODE : {value: 106},
MODULO : {value: 11},
CODE_PATTERN : {value: [
var properties = {
CODE_SHIFT: {value: 98},
CODE_C: {value: 99},
CODE_B: {value: 100},
CODE_A: {value: 101},
START_CODE_A: {value: 103},
START_CODE_B: {value: 104},
START_CODE_C: {value: 105},
STOP_CODE: {value: 106},
MODULO: {value: 11},
CODE_PATTERN: {value: [
[2, 1, 2, 2, 2, 2],
[2, 2, 2, 1, 2, 2],
[2, 2, 2, 2, 2, 1],
@ -134,12 +126,12 @@ define(
SINGLE_CODE_ERROR: {value: 1},
AVG_CODE_ERROR: {value: 0.5},
FORMAT: {value: "code_128", writeable: false}
};
};
Code128Reader.prototype = Object.create(BarcodeReader.prototype, properties);
Code128Reader.prototype.constructor = Code128Reader;
Code128Reader.prototype = Object.create(BarcodeReader.prototype, properties);
Code128Reader.prototype.constructor = Code128Reader;
Code128Reader.prototype._decodeCode = function(start) {
Code128Reader.prototype._decodeCode = function(start) {
var counter = [0, 0, 0, 0, 0, 0],
i,
self = this,
@ -147,10 +139,10 @@ define(
isWhite = !self._row[offset],
counterPos = 0,
bestMatch = {
error : Number.MAX_VALUE,
code : -1,
start : start,
end : start
error: Number.MAX_VALUE,
code: -1,
start: start,
end: start
},
code,
error,
@ -181,9 +173,9 @@ define(
}
}
return null;
};
};
Code128Reader.prototype._findStart = function() {
Code128Reader.prototype._findStart = function() {
var counter = [0, 0, 0, 0, 0, 0],
i,
self = this,
@ -191,10 +183,10 @@ define(
isWhite = false,
counterPos = 0,
bestMatch = {
error : Number.MAX_VALUE,
code : -1,
start : 0,
end : 0
error: Number.MAX_VALUE,
code: -1,
start: 0,
end: 0
},
code,
error,
@ -241,9 +233,9 @@ define(
}
}
return null;
};
};
Code128Reader.prototype._decode = function() {
Code128Reader.prototype._decode = function() {
var self = this,
startInfo = self._findStart(),
code = null,
@ -255,20 +247,19 @@ define(
rawResult = [],
decodedCodes = [],
shiftNext = false,
unshift,
lastCharacterWasPrintable;
unshift;
if (startInfo === null) {
return null;
}
code = {
code : startInfo.code,
start : startInfo.start,
end : startInfo.end
code: startInfo.code,
start: startInfo.start,
end: startInfo.end
};
decodedCodes.push(code);
checksum = code.code;
switch(code.code) {
switch (code.code) {
case self.START_CODE_A:
codeset = self.CODE_A;
break;
@ -294,7 +285,7 @@ define(
}
decodedCodes.push(code);
switch(codeset) {
switch (codeset) {
case self.CODE_A:
if (code.code < 64) {
result.push(String.fromCharCode(32 + code.code));
@ -322,9 +313,6 @@ define(
if (code.code < 96) {
result.push(String.fromCharCode(32 + code.code));
} else {
if (code.code != self.STOP_CODE) {
lastCharacterWasPrintable = false;
}
switch (code.code) {
case self.CODE_SHIFT:
shiftNext = true;
@ -363,7 +351,7 @@ define(
done = true;
}
if (unshift) {
codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A;
codeset = codeset === self.CODE_A ? self.CODE_B : self.CODE_A;
}
}
@ -373,14 +361,14 @@ define(
// find end bar
code.end = self._nextUnset(self._row, code.end);
if(!self._verifyTrailingWhitespace(code)){
if (!self._verifyTrailingWhitespace(code)){
return null;
}
// checksum
// Does not work correctly yet!!! startcode - endcode?
checksum -= multiplier * rawResult[rawResult.length - 1];
if (checksum % 103 != rawResult[rawResult.length - 1]) {
if (checksum % 103 !== rawResult[rawResult.length - 1]) {
return null;
}
@ -391,21 +379,19 @@ define(
// remove last code from result (checksum)
result.splice(result.length - 1, 1);
return {
code : result.join(""),
start : startInfo.start,
end : code.end,
codeset : codeset,
startInfo : startInfo,
decodedCodes : decodedCodes,
endInfo : code
};
code: result.join(""),
start: startInfo.start,
end: code.end,
codeset: codeset,
startInfo: startInfo,
decodedCodes: decodedCodes,
endInfo: code
};
};
BarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) {
BarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) {
var self = this,
trailingWhitespaceEnd;
@ -416,8 +402,6 @@ define(
}
}
return null;
};
};
return (Code128Reader);
}
);
export default Code128Reader;

87
src/code_39_reader.js
Unescape Escape View File

@ -1,30 +1,26 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
define(
[
"./barcode_reader",
"./array_helper"
],
function(BarcodeReader, ArrayHelper) {
"use strict";
function Code39Reader() {
import BarcodeReader from './barcode_reader';
import ArrayHelper from './array_helper';
function Code39Reader() {
BarcodeReader.call(this);
}
}
var properties = {
var properties = {
ALPHABETH_STRING: {value: "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"},
ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37]},
CHARACTER_ENCODINGS: {value: [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]},
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
]},
ASTERISK: {value: 0x094},
FORMAT: {value: "code_39", writeable: false}
};
};
Code39Reader.prototype = Object.create(BarcodeReader.prototype, properties);
Code39Reader.prototype.constructor = Code39Reader;
Code39Reader.prototype = Object.create(BarcodeReader.prototype, properties);
Code39Reader.prototype.constructor = Code39Reader;
Code39Reader.prototype._toCounters = function(start, counter) {
Code39Reader.prototype._toCounters = function(start, counter) {
var self = this,
numCounters = counter.length,
end = self._row.length,
@ -49,11 +45,11 @@ define(
}
return counter;
};
};
Code39Reader.prototype._decode = function() {
Code39Reader.prototype._decode = function() {
var self = this,
counters = [0,0,0,0,0,0,0,0,0],
counters = [0, 0, 0, 0, 0, 0, 0, 0, 0],
result = [],
start = self._findStart(),
decodedChar,
@ -80,27 +76,27 @@ define(
lastStart = nextStart;
nextStart += ArrayHelper.sum(counters);
nextStart = self._nextSet(self._row, nextStart);
} while(decodedChar !== '*');
} while (decodedChar !== '*');
result.pop();
if (!result.length) {
return null;
}
if(!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) {
if (!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) {
return null;
}
return {
code : result.join(""),
start : start.start,
end : nextStart,
startInfo : start,
decodedCodes : result
};
code: result.join(""),
start: start.start,
end: nextStart,
startInfo: start,
decodedCodes: result
};
};
Code39Reader.prototype._verifyTrailingWhitespace = function(lastStart, nextStart, counters) {
Code39Reader.prototype._verifyTrailingWhitespace = function(lastStart, nextStart, counters) {
var trailingWhitespaceEnd,
patternSize = ArrayHelper.sum(counters);
@ -109,9 +105,9 @@ define(
return true;
}
return false;
};
};
Code39Reader.prototype._patternToChar = function(pattern) {
Code39Reader.prototype._patternToChar = function(pattern) {
var i,
self = this;
@ -120,9 +116,9 @@ define(
return String.fromCharCode(self.ALPHABET[i]);
}
}
};
};
Code39Reader.prototype._findNextWidth = function(counters, current) {
Code39Reader.prototype._findNextWidth = function(counters, current) {
var i,
minWidth = Number.MAX_VALUE;
@ -133,9 +129,9 @@ define(
}
return minWidth;
};
};
Code39Reader.prototype._toPattern = function(counters) {
Code39Reader.prototype._toPattern = function(counters) {
var numCounters = counters.length,
maxNarrowWidth = 0,
numWideBars = numCounters,
@ -144,7 +140,7 @@ define(
pattern,
i;
while(numWideBars > 3) {
while (numWideBars > 3) {
maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth);
numWideBars = 0;
pattern = 0;
@ -169,13 +165,13 @@ define(
}
}
return -1;
};
};
Code39Reader.prototype._findStart = function() {
Code39Reader.prototype._findStart = function() {
var self = this,
offset = self._nextSet(self._row),
patternStart = offset,
counter = [0,0,0,0,0,0,0,0,0],
counter = [0, 0, 0, 0, 0, 0, 0, 0, 0],
counterPos = 0,
isWhite = false,
i,
@ -187,7 +183,6 @@ define(
counter[counterPos]++;
} else {
if (counterPos === counter.length - 1) {
// find start pattern
if (self._toPattern(counter) === self.ASTERISK) {
whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - ((i - patternStart) / 4)));
@ -214,8 +209,6 @@ define(
}
}
return null;
};
};
return (Code39Reader);
}
);
export default Code39Reader;

40
src/code_39_vin_reader.js
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@ -1,28 +1,20 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import Code39Reader from './code_39_reader';
define(
[
"./code_39_reader"
],
function(Code39Reader) {
"use strict";
function Code39VINReader() {
function Code39VINReader() {
Code39Reader.call(this);
}
}
var patterns = {
var patterns = {
IOQ: /[IOQ]/g,
AZ09: /[A-Z0-9]{17}/
};
};
Code39VINReader.prototype = Object.create(Code39Reader.prototype);
Code39VINReader.prototype.constructor = Code39VINReader;
Code39VINReader.prototype = Object.create(Code39Reader.prototype);
Code39VINReader.prototype.constructor = Code39VINReader;
// Cribbed from:
// https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java
Code39VINReader.prototype._decode = function() {
// Cribbed from:
// https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java
Code39VINReader.prototype._decode = function() {
var result = Code39Reader.prototype._decode.apply(this);
if (!result) {
return null;
@ -31,7 +23,7 @@ define(
var code = result.code;
if (!code) {
return;
return null;
}
code = code.replace(patterns.IOQ, '');
@ -47,13 +39,11 @@ define(
result.code = code;
return result;
};
};
Code39VINReader.prototype._checkChecksum = function(code) {
Code39VINReader.prototype._checkChecksum = function(code) {
// TODO
return !!code;
};
};
return (Code39VINReader);
}
);
export default Code39VINReader;

17
src/config.js
Unescape Escape View File

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

309
src/cv_utils.js
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@ -1,52 +1,38 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import Cluster2 from './cluster';
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 y y-coordinate
* @return ImageReference {x,y} Coordinate
*/
CVUtils.imageRef = function(x, y) {
CVUtils.imageRef = function(x, y) {
var that = {
x : x,
y : y,
toVec2 : function() {
x: x,
y: y,
toVec2: function() {
return vec2.clone([this.x, this.y]);
},
toVec3 : function() {
toVec3: function() {
return vec3.clone([this.x, this.y, 1]);
},
round : function() {
round: function() {
this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5);
this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5);
return this;
}
};
return that;
};
};
/**
/**
* Computes an integral image of a given grayscale image.
* @param imageDataContainer {ImageDataContainer} the image to be integrated
*/
CVUtils.computeIntegralImage2 = function(imageWrapper, integralWrapper) {
CVUtils.computeIntegralImage2 = function(imageWrapper, integralWrapper) {
var imageData = imageWrapper.data;
var width = imageWrapper.size.x;
var height = imageWrapper.size.y;
@ -79,16 +65,17 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
posC = y * width;
posD = (y - 1) * width;
for ( x = 1; x < width; x++) {
integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD];
integralImageData[posA] +=
imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD];
posA++;
posB++;
posC++;
posD++;
}
}
};
};
CVUtils.computeIntegralImage = function(imageWrapper, integralWrapper) {
CVUtils.computeIntegralImage = function(imageWrapper, integralWrapper) {
var imageData = imageWrapper.data;
var width = imageWrapper.size.x;
var height = imageWrapper.size.y;
@ -108,9 +95,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
integralImageData[((v) * width) + u] = sum + integralImageData[(v - 1) * width + u];
}
}
};
};
CVUtils.thresholdImage = function(imageWrapper, threshold, targetWrapper) {
CVUtils.thresholdImage = function(imageWrapper, threshold, targetWrapper) {
if (!targetWrapper) {
targetWrapper = imageWrapper;
}
@ -119,9 +106,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
while (length--) {
targetData[length] = imageData[length] < threshold ? 1 : 0;
}
};
};
CVUtils.computeHistogram = function(imageWrapper, bitsPerPixel) {
CVUtils.computeHistogram = function(imageWrapper, bitsPerPixel) {
if (!bitsPerPixel) {
bitsPerPixel = 8;
}
@ -135,9 +122,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
hist[imageData[length] >> bitShift]++;
}
return hist;
};
};
CVUtils.sharpenLine = function(line) {
CVUtils.sharpenLine = function(line) {
var i,
length = line.length,
left = line[0],
@ -147,14 +134,14 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
for (i = 1; i < length - 1; i++) {
right = line[i + 1];
// -1 4 -1 kernel
line[i-1] = (((center * 2) - left - right)) & 255;
line[i - 1] = (((center * 2) - left - right)) & 255;
left = center;
center = right;
}
return line;
};
};
CVUtils.determineOtsuThreshold = function(imageWrapper, bitsPerPixel) {
CVUtils.determineOtsuThreshold = function(imageWrapper, bitsPerPixel) {
if (!bitsPerPixel) {
bitsPerPixel = 8;
}
@ -202,17 +189,17 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
threshold = determineThreshold();
return threshold << bitShift;
};
};
CVUtils.otsuThreshold = function(imageWrapper, targetWrapper) {
CVUtils.otsuThreshold = function(imageWrapper, targetWrapper) {
var threshold = CVUtils.determineOtsuThreshold(imageWrapper);
CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper);
return threshold;
};
};
// local thresholding
CVUtils.computeBinaryImage = function(imageWrapper, integralWrapper, targetWrapper) {
// local thresholding
CVUtils.computeBinaryImage = function(imageWrapper, integralWrapper, targetWrapper) {
CVUtils.computeIntegralImage(imageWrapper, integralWrapper);
if (!targetWrapper) {
@ -252,21 +239,21 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
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 = [];
if (!property) {
property = "rad";
}
function addToCluster(point) {
function addToCluster(newPoint) {
var found = false;
for ( k = 0; k < clusters.length; k++) {
cluster = clusters[k];
if (cluster.fits(point)) {
cluster.add(point);
if (cluster.fits(newPoint)) {
cluster.add(newPoint);
found = true;
}
}
@ -280,20 +267,21 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
clusters.push(Cluster2.create(point, threshold));
}
}
return clusters;
};
};
CVUtils.Tracer = {
trace : function(points, vec) {
CVUtils.Tracer = {
trace: function(points, vec) {
var iteration, maxIterations = 10, top = [], result = [], centerPos = 0, currentPos = 0;
function trace(idx, forward) {
var from, to, toIdx, predictedPos, thresholdX = 1, thresholdY = Math.abs(vec[1] / 10), found = false;
function match(pos, predicted) {
if (pos.x > (predicted.x - thresholdX) && pos.x < (predicted.x + thresholdX) && pos.y > (predicted.y - thresholdY) && pos.y < (predicted.y + thresholdY)) {
if (pos.x > (predicted.x - thresholdX)
&& pos.x < (predicted.x + thresholdX)
&& pos.y > (predicted.y - thresholdY)
&& pos.y < (predicted.y + thresholdY)) {
return true;
} else {
return false;
@ -306,13 +294,13 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
from = points[idx];
if (forward) {
predictedPos = {
x : from.x + vec[0],
y : from.y + vec[1]
x: from.x + vec[0],
y: from.y + vec[1]
};
} else {
predictedPos = {
x : from.x - vec[0],
y : from.y - vec[1]
x: from.x - vec[0],
y: from.y - vec[1]
};
}
@ -348,17 +336,25 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
result = top;
}
}
return result;
}
};
};
CVUtils.DILATE = 1;
CVUtils.ERODE = 2;
CVUtils.DILATE = 1;
CVUtils.ERODE = 2;
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;
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;
for ( v = 1; v < height - 1; v++) {
for ( u = 1; u < width - 1; u++) {
@ -366,17 +362,26 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
yStart2 = v + 1;
xStart1 = u - 1;
xStart2 = u + 1;
sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +
/* inImageData[v*width+xStart1] + */
inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/
inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];
sum = inImageData[yStart1 * width + xStart1] + inImageData[yStart1 * width + xStart2] +
inImageData[v * width + u] +
inImageData[yStart2 * width + xStart1] + inImageData[yStart2 * width + xStart2];
outImageData[v * width + u] = sum > 0 ? 1 : 0;
}
}
};
};
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;
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;
for ( v = 1; v < height - 1; v++) {
for ( u = 1; u < width - 1; u++) {
@ -384,53 +389,58 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
yStart2 = v + 1;
xStart1 = u - 1;
xStart2 = u + 1;
sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +
/* inImageData[v*width+xStart1] + */
inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/
inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];
sum = inImageData[yStart1 * width + xStart1] + inImageData[yStart1 * width + xStart2] +
inImageData[v * width + u] +
inImageData[yStart2 * width + xStart1] + inImageData[yStart2 * width + xStart2];
outImageData[v * width + u] = sum === 5 ? 1 : 0;
}
}
};
};
CVUtils.subtract = function(aImageWrapper, bImageWrapper, resultImageWrapper) {
CVUtils.subtract = function(aImageWrapper, bImageWrapper, resultImageWrapper) {
if (!resultImageWrapper) {
resultImageWrapper = aImageWrapper;
}
var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data;
var length = aImageWrapper.data.length,
aImageData = aImageWrapper.data,
bImageData = bImageWrapper.data,
cImageData = resultImageWrapper.data;
while (length--) {
cImageData[length] = aImageData[length] - bImageData[length];
}
};
};
CVUtils.bitwiseOr = function(aImageWrapper, bImageWrapper, resultImageWrapper) {
CVUtils.bitwiseOr = function(aImageWrapper, bImageWrapper, resultImageWrapper) {
if (!resultImageWrapper) {
resultImageWrapper = aImageWrapper;
}
var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data;
var length = aImageWrapper.data.length,
aImageData = aImageWrapper.data,
bImageData = bImageWrapper.data,
cImageData = resultImageWrapper.data;
while (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;
while (length--) {
sum += data[length];
}
return sum;
};
};
CVUtils.topGeneric = function(list, top, scoreFunc) {
CVUtils.topGeneric = function(list, top, scoreFunc) {
var i, minIdx = 0, min = 0, queue = [], score, hit, pos;
for ( i = 0; i < top; i++) {
queue[i] = {
score : 0,
item : null
score: 0,
item: null
};
}
@ -451,20 +461,20 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
}
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);
var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data;
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;
CVUtils.computeGray(ctxData, array);
};
};
CVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) {
CVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) {
var topRowIdx = 0;
var bottomRowIdx = size.x;
var endIdx = Math.floor(canvasData.length / 4);
@ -475,7 +485,19 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
while (bottomRowIdx < endIdx) {
for ( i = 0; i < outWidth; i++) {
outArray[outImgIdx] = Math.floor(((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2]) + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4);
outArray[outImgIdx] = Math.floor((
(0.299 * canvasData[topRowIdx * 4 + 0] +
0.587 * canvasData[topRowIdx * 4 + 1] +
0.114 * canvasData[topRowIdx * 4 + 2]) +
(0.299 * canvasData[(topRowIdx + 1) * 4 + 0] +
0.587 * canvasData[(topRowIdx + 1) * 4 + 1] +
0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) +
(0.299 * canvasData[(bottomRowIdx) * 4 + 0] +
0.587 * canvasData[(bottomRowIdx) * 4 + 1] +
0.114 * canvasData[(bottomRowIdx) * 4 + 2]) +
(0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] +
0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] +
0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4);
outImgIdx++;
topRowIdx = topRowIdx + 2;
bottomRowIdx = bottomRowIdx + 2;
@ -483,10 +505,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
topRowIdx = topRowIdx + inWidth;
bottomRowIdx = bottomRowIdx + inWidth;
}
};
};
CVUtils.computeGray = function(imageData, outArray, config) {
CVUtils.computeGray = function(imageData, outArray, config) {
var l = (imageData.length / 4) | 0,
i,
singleChannel = config && config.singleChannel === true;
@ -497,14 +518,16 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
}
} else {
for (i = 0; i < l; i++) {
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) {
if (!canvas)
CVUtils.loadImageArray = function(src, callback, canvas) {
if (!canvas) {
canvas = document.createElement('canvas');
}
var img = new Image();
img.callback = callback;
img.onload = function() {
@ -517,18 +540,18 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
var data = ctx.getImageData(0, 0, this.width, this.height).data;
CVUtils.computeGray(data, array);
this.callback(array, {
x : this.width,
y : this.height
x: this.width,
y: this.height
}, this);
};
img.src = src;
};
};
/**
/**
* @param inImg {ImageWrapper} input image to be sampled
* @param outImg {ImageWrapper} to be stored in
*/
CVUtils.halfSample = function(inImgWrapper, outImgWrapper) {
CVUtils.halfSample = function(inImgWrapper, outImgWrapper) {
var inImg = inImgWrapper.data;
var inWidth = inImgWrapper.size.x;
var outImg = outImgWrapper.data;
@ -539,7 +562,8 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
var outImgIdx = 0;
while (bottomRowIdx < endIdx) {
for (var i = 0; i < outWidth; i++) {
outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4);
outImg[outImgIdx] = Math.floor(
(inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4);
outImgIdx++;
topRowIdx = topRowIdx + 2;
bottomRowIdx = bottomRowIdx + 2;
@ -547,10 +571,19 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
topRowIdx = topRowIdx + inWidth;
bottomRowIdx = bottomRowIdx + inWidth;
}
};
};
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;
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;
rgb = rgb || [0, 0, 0];
if (h < 60) {
@ -576,9 +609,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
rgb[1] = ((g + m) * 255) | 0;
rgb[2] = ((b + m) * 255) | 0;
return rgb;
};
};
CVUtils._computeDivisors = function(n) {
CVUtils._computeDivisors = function(n) {
var largeDivisors = [],
divisors = [],
i;
@ -586,15 +619,15 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
for (i = 1; i < Math.sqrt(n) + 1; i++) {
if (n % i === 0) {
divisors.push(i);
if (i !== n/i) {
largeDivisors.unshift(Math.floor(n/i));
if (i !== n / i) {
largeDivisors.unshift(Math.floor(n / i));
}
}
}
return divisors.concat(largeDivisors);
};
};
CVUtils._computeIntersection = function(arr1, arr2) {
CVUtils._computeIntersection = function(arr1, arr2) {
var i = 0,
j = 0,
result = [];
@ -611,9 +644,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
}
}
return result;
};
};
CVUtils.calculatePatchSize = function(patchSize, imgSize) {
CVUtils.calculatePatchSize = function(patchSize, imgSize) {
var divisorsX = this._computeDivisors(imgSize.x),
divisorsY = this._computeDivisors(imgSize.y),
wideSide = Math.max(imgSize.x, imgSize.y),
@ -628,25 +661,25 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
},
nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium,
nrOfPatches = nrOfPatchesList[nrOfPatchesIdx],
desiredPatchSize = Math.floor(wideSide/nrOfPatches),
desiredPatchSize = Math.floor(wideSide / nrOfPatches),
optimalPatchSize;
function findPatchSizeForDivisors(divisors) {
var i = 0,
found = divisors[Math.floor(divisors.length/2)];
found = divisors[Math.floor(divisors.length / 2)];
while(i < (divisors.length - 1) && divisors[i] < desiredPatchSize) {
while (i < (divisors.length - 1) && divisors[i] < desiredPatchSize) {
i++;
}
if (i > 0) {
if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i-1] - desiredPatchSize)) {
found = divisors[i-1];
if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i - 1] - desiredPatchSize)) {
found = divisors[i - 1];
} else {
found = divisors[i];
}
}
if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx+1] / nrOfPatchesList[nrOfPatchesIdx] &&
desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx-1]/nrOfPatchesList[nrOfPatchesIdx] ) {
if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx + 1] / nrOfPatchesList[nrOfPatchesIdx] &&
desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx - 1] / nrOfPatchesList[nrOfPatchesIdx] ) {
return {x: found, y: found};
}
return null;
@ -660,18 +693,18 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
}
}
return optimalPatchSize;
};
};
CVUtils._parseCSSDimensionValues = function(value) {
CVUtils._parseCSSDimensionValues = function(value) {
var dimension = {
value: parseFloat(value),
unit: value.indexOf("%") === value.length-1 ? "%" : "%"
unit: value.indexOf("%") === value.length - 1 ? "%" : "%"
};
return dimension;
};
};
CVUtils._dimensionsConverters = {
CVUtils._dimensionsConverters = {
top: function(dimension, context) {
if (dimension.unit === "%") {
return Math.floor(context.height * (dimension.value / 100));
@ -692,9 +725,9 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
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 parsedArea = Object.keys(area).reduce(function(result, key) {
@ -712,8 +745,6 @@ define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper,
sw: parsedArea.right - parsedArea.left,
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 */
/* global define */
import EANReader from './ean_reader';
define(
[
"./ean_reader"
],
function(EANReader) {
"use strict";
function EAN8Reader() {
function EAN8Reader() {
EANReader.call(this);
}
}
var properties = {
var properties = {
FORMAT: {value: "ean_8", writeable: false}
};
};
EAN8Reader.prototype = Object.create(EANReader.prototype, properties);
EAN8Reader.prototype.constructor = EAN8Reader;
EAN8Reader.prototype = Object.create(EANReader.prototype, properties);
EAN8Reader.prototype.constructor = EAN8Reader;
EAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) {
EAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) {
var i,
self = this;
@ -48,8 +40,6 @@ define(
}
return code;
};
};
return (EAN8Reader);
}
);
export default EAN8Reader;

116
src/ean_reader.js
Unescape Escape View File

@ -1,25 +1,17 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import BarcodeReader from './barcode_reader';
define(
[
"./barcode_reader"
],
function(BarcodeReader) {
"use strict";
function EANReader(opts) {
function EANReader(opts) {
BarcodeReader.call(this, opts);
}
var properties = {
CODE_L_START : {value: 0},
MODULO : {value: 7},
CODE_G_START : {value: 10},
START_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]},
STOP_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]},
MIDDLE_PATTERN : {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]},
CODE_PATTERN : {value: [
}
var properties = {
CODE_L_START: {value: 0},
MODULO: {value: 7},
CODE_G_START: {value: 10},
START_PATTERN: {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]},
STOP_PATTERN: {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]},
MIDDLE_PATTERN: {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]},
CODE_PATTERN: {value: [
[3, 2, 1, 1],
[2, 2, 2, 1],
[2, 1, 2, 2],
@ -41,16 +33,16 @@ define(
[3, 1, 2, 1],
[2, 1, 1, 3]
]},
CODE_FREQUENCY : {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]},
CODE_FREQUENCY: {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]},
SINGLE_CODE_ERROR: {value: 0.67},
AVG_CODE_ERROR: {value: 0.27},
FORMAT: {value: "ean_13", writeable: false}
};
};
EANReader.prototype = Object.create(BarcodeReader.prototype, properties);
EANReader.prototype.constructor = EANReader;
EANReader.prototype = Object.create(BarcodeReader.prototype, properties);
EANReader.prototype.constructor = EANReader;
EANReader.prototype._decodeCode = function(start, coderange) {
EANReader.prototype._decodeCode = function(start, coderange) {
var counter = [0, 0, 0, 0],
i,
self = this,
@ -58,10 +50,10 @@ define(
isWhite = !self._row[offset],
counterPos = 0,
bestMatch = {
error : Number.MAX_VALUE,
code : -1,
start : start,
end : start
error: Number.MAX_VALUE,
code: -1,
start: start,
end: start
},
code,
error,
@ -99,18 +91,18 @@ define(
}
}
return null;
};
};
EANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) {
EANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) {
var counter = [],
self = this,
i,
counterPos = 0,
bestMatch = {
error : Number.MAX_VALUE,
code : -1,
start : 0,
end : 0
error: Number.MAX_VALUE,
code: -1,
start: 0,
end: 0
},
error,
j,
@ -175,15 +167,15 @@ define(
}
}
return null;
};
};
EANReader.prototype._findStart = function() {
EANReader.prototype._findStart = function() {
var self = this,
leadingWhitespaceStart,
offset = self._nextSet(self._row),
startInfo;
while(!startInfo) {
while (!startInfo) {
startInfo = self._findPattern(self.START_PATTERN, offset);
if (!startInfo) {
return null;
@ -197,9 +189,9 @@ define(
offset = startInfo.end;
startInfo = null;
}
};
};
EANReader.prototype._verifyTrailingWhitespace = function(endInfo) {
EANReader.prototype._verifyTrailingWhitespace = function(endInfo) {
var self = this,
trailingWhitespaceEnd;
@ -210,16 +202,16 @@ define(
}
}
return null;
};
};
EANReader.prototype._findEnd = function(offset, isWhite) {
EANReader.prototype._findEnd = function(offset, isWhite) {
var self = this,
endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false);
return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;
};
};
EANReader.prototype._calculateFirstDigit = function(codeFrequency) {
EANReader.prototype._calculateFirstDigit = function(codeFrequency) {
var i,
self = this;
@ -229,9 +221,9 @@ define(
}
}
return null;
};
};
EANReader.prototype._decodePayload = function(code, result, decodedCodes) {
EANReader.prototype._decodePayload = function(code, result, decodedCodes) {
var i,
self = this,
codeFrequency = 0x0,
@ -274,9 +266,9 @@ define(
}
return code;
};
};
EANReader.prototype._decode = function() {
EANReader.prototype._decode = function() {
var startInfo,
self = this,
code,
@ -288,9 +280,9 @@ define(
return null;
}
code = {
code : startInfo.code,
start : startInfo.start,
end : startInfo.end
code: startInfo.code,
start: startInfo.start,
end: startInfo.end
};
decodedCodes.push(code);
code = self._decodePayload(code, result, decodedCodes);
@ -310,16 +302,16 @@ define(
}
return {
code : result.join(""),
start : startInfo.start,
end : code.end,
codeset : "",
startInfo : startInfo,
decodedCodes : decodedCodes
};
code: result.join(""),
start: startInfo.start,
end: code.end,
codeset: "",
startInfo: startInfo,
decodedCodes: decodedCodes
};
};
EANReader.prototype._checksum = function(result) {
EANReader.prototype._checksum = function(result) {
var sum = 0, i;
for ( i = result.length - 2; i >= 0; i -= 2) {
@ -330,8 +322,6 @@ define(
sum += result[i];
}
return sum % 10 === 0;
};
};
return (EANReader);
}
);
export default (EANReader);

23
src/events.js
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@ -1,16 +1,10 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
define(function() {
"use strict";
var _events = function() {
export default (function() {
var events = {};
function getEvent(eventName) {
if (!events[eventName]) {
events[eventName] = {
subscribers : []
subscribers: []
};
}
return events[eventName];
@ -35,8 +29,8 @@ define(function() {
if ( typeof callback === "function") {
subscription = {
callback : callback,
async : async
callback: callback,
async: async
};
} else {
subscription = callback;
@ -49,10 +43,10 @@ define(function() {
}
return {
subscribe : function(event, callback, async) {
subscribe: function(event, callback, async) {
return subscribe(event, callback, async);
},
publish : function(eventName, data) {
publish: function(eventName, data) {
var event = getEvent(eventName),
subscribers = event.subscribers;
@ -85,7 +79,4 @@ define(function() {
}
}
};
}();
return _events;
});
})();

17
src/frame_grabber.js
Unescape Escape View File

@ -1,12 +1,8 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import CVUtils from './cv_utils';
define(["cv_utils"], function(CVUtils) {
"use strict";
var FrameGrabber = {};
var FrameGrabber = {};
FrameGrabber.create = function(inputStream, canvas) {
FrameGrabber.create = function(inputStream, canvas) {
var _that = {},
_streamConfig = inputStream.getConfig(),
_video_size = CVUtils.imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()),
@ -56,7 +52,7 @@ define(["cv_utils"], function(CVUtils) {
if (frame) {
_ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y);
ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data;
if(doHalfSample){
if (doHalfSample){
CVUtils.grayAndHalfSampleFromCanvasData(ctxData, _size, _data);
} else {
CVUtils.computeGray(ctxData, _data, _streamConfig);
@ -72,7 +68,6 @@ define(["cv_utils"], function(CVUtils) {
};
return _that;
};
};
return (FrameGrabber);
});
export default FrameGrabber;

40
src/html_utils.js
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@ -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);
}
};
});

122
src/i2of5_reader.js
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@ -1,40 +1,32 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
define(
[
"./barcode_reader",
"./html_utils"
],
function(BarcodeReader, HTMLUtils) {
"use strict";
function I2of5Reader(opts) {
opts = HTMLUtils.mergeObjects(getDefaulConfig(), opts);
import BarcodeReader from './barcode_reader';
const merge = require('lodash/object/merge');
function I2of5Reader(opts) {
opts = merge(getDefaulConfig(), opts);
BarcodeReader.call(this, opts);
this.barSpaceRatio = [1, 1];
if (opts.normalizeBarSpaceWidth) {
this.SINGLE_CODE_ERROR = 0.38;
this.AVG_CODE_ERROR = 0.09;
}
}
}
function getDefaulConfig() {
function getDefaulConfig() {
var config = {};
Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) {
config[key] = I2of5Reader.CONFIG_KEYS[key]['default'];
config[key] = I2of5Reader.CONFIG_KEYS[key].default;
});
return config;
}
}
var N = 1,
var N = 1,
W = 3,
properties = {
MODULO : {value: 10},
START_PATTERN : {value: [N*2.5, N*2.5, N*2.5, N*2.5]},
STOP_PATTERN : {value: [N*2, N*2, W*2]},
CODE_PATTERN : {value: [
MODULO: {value: 10},
START_PATTERN: {value: [N * 2.5, N * 2.5, N * 2.5, N * 2.5]},
STOP_PATTERN: {value: [N * 2, N * 2, W * 2]},
CODE_PATTERN: {value: [
[N, N, W, W, N],
[W, N, N, N, W],
[N, W, N, N, W],
@ -52,10 +44,10 @@ define(
FORMAT: {value: "i2of5"}
};
I2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties);
I2of5Reader.prototype.constructor = I2of5Reader;
I2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties);
I2of5Reader.prototype.constructor = I2of5Reader;
I2of5Reader.prototype._matchPattern = function(counter, code) {
I2of5Reader.prototype._matchPattern = function(counter, code) {
if (this.config.normalizeBarSpaceWidth) {
var i,
counterSum = [0, 0],
@ -79,18 +71,18 @@ define(
}
}
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 = [],
self = this,
i,
counterPos = 0,
bestMatch = {
error : Number.MAX_VALUE,
code : -1,
start : 0,
end : 0
error: Number.MAX_VALUE,
code: -1,
start: 0,
end: 0
},
error,
j,
@ -147,22 +139,22 @@ define(
}
}
return null;
};
};
I2of5Reader.prototype._findStart = function() {
I2of5Reader.prototype._findStart = function() {
var self = this,
leadingWhitespaceStart,
offset = self._nextSet(self._row),
startInfo,
narrowBarWidth = 1;
while(!startInfo) {
while (!startInfo) {
startInfo = self._findPattern(self.START_PATTERN, offset, false, true);
if (!startInfo) {
return null;
}
narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4);
leadingWhitespaceStart = startInfo.start - narrowBarWidth*10;
leadingWhitespaceStart = startInfo.start - narrowBarWidth * 10;
if (leadingWhitespaceStart >= 0) {
if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {
return startInfo;
@ -171,9 +163,9 @@ define(
offset = startInfo.end;
startInfo = null;
}
};
};
I2of5Reader.prototype._verifyTrailingWhitespace = function(endInfo) {
I2of5Reader.prototype._verifyTrailingWhitespace = function(endInfo) {
var self = this,
trailingWhitespaceEnd;
@ -184,9 +176,9 @@ define(
}
}
return null;
};
};
I2of5Reader.prototype._findEnd = function() {
I2of5Reader.prototype._findEnd = function() {
var self = this,
endInfo,
tmp;
@ -205,9 +197,9 @@ define(
endInfo.end = self._row.length - tmp;
return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;
};
};
I2of5Reader.prototype._decodePair = function(counterPair) {
I2of5Reader.prototype._decodePair = function(counterPair) {
var i,
code,
codes = [],
@ -221,9 +213,9 @@ define(
codes.push(code);
}
return codes;
};
};
I2of5Reader.prototype._decodeCode = function(counter) {
I2of5Reader.prototype._decodeCode = function(counter) {
var j,
self = this,
sum = 0,
@ -232,10 +224,10 @@ define(
epsilon = self.AVG_CODE_ERROR,
code,
bestMatch = {
error : Number.MAX_VALUE,
code : -1,
start : 0,
end : 0
error: Number.MAX_VALUE,
code: -1,
start: 0,
end: 0
};
for ( j = 0; j < counter.length; j++) {
@ -255,9 +247,9 @@ define(
}
}
return null;
};
};
I2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) {
I2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) {
var i,
self = this,
pos = 0,
@ -267,8 +259,8 @@ define(
while (pos < counterLength) {
for (i = 0; i < 5; i++) {
counterPair[0][i] = counters[pos]*this.barSpaceRatio[0];
counterPair[1][i] = counters[pos + 1]*this.barSpaceRatio[1];
counterPair[0][i] = counters[pos] * this.barSpaceRatio[0];
counterPair[1][i] = counters[pos + 1] * this.barSpaceRatio[1];
pos += 2;
}
codes = self._decodePair(counterPair);
@ -281,13 +273,13 @@ define(
}
}
return codes;
};
};
I2of5Reader.prototype._verifyCounterLength = function(counters) {
I2of5Reader.prototype._verifyCounterLength = function(counters) {
return (counters.length % 10 === 0);
};
};
I2of5Reader.prototype._decode = function() {
I2of5Reader.prototype._decode = function() {
var startInfo,
endInfo,
self = this,
@ -322,23 +314,21 @@ define(
decodedCodes.push(endInfo);
return {
code : result.join(""),
start : startInfo.start,
end : endInfo.end,
startInfo : startInfo,
decodedCodes : decodedCodes
};
code: result.join(""),
start: startInfo.start,
end: endInfo.end,
startInfo: startInfo,
decodedCodes: decodedCodes
};
};
I2of5Reader.CONFIG_KEYS = {
I2of5Reader.CONFIG_KEYS = {
normalizeBarSpaceWidth: {
'type': 'boolean',
'default': false,
'description': 'If true, the reader tries to normalize the' +
'width-difference between bars and spaces'
}
};
};
return (I2of5Reader);
}
);
export default I2of5Reader;

16
src/image_debug.js
Unescape Escape View File

@ -1,10 +1,4 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
define(function() {
"use strict";
return {
export default {
drawRect: function(pos, size, ctx, style){
ctx.strokeStyle = style.color;
ctx.fillStyle = style.color;
@ -31,10 +25,10 @@ define(function() {
canvasDataPos = data.length,
value;
if (canvasDataPos/imageDataPos !== 4) {
if (canvasDataPos / imageDataPos !== 4) {
return false;
}
while(imageDataPos--){
while (imageDataPos--){
value = imageData[imageDataPos];
data[--canvasDataPos] = 255;
data[--canvasDataPos] = value;
@ -44,6 +38,4 @@ define(function() {
ctx.putImageData(canvasData, 0, 0);
return true;
}
};
});
};

27
src/image_loader.js
Unescape Escape View File

@ -1,11 +1,5 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
define(function() {
"use strict";
var ImageLoader = {};
ImageLoader.load = function(directory, callback, offset, size, sequence) {
var ImageLoader = {};
ImageLoader.load = function(directory, callback, offset, size, sequence) {
var htmlImagesSrcArray = new Array(size),
htmlImagesArray = new Array(htmlImagesSrcArray.length),
i,
@ -21,17 +15,17 @@ define(function() {
}
}
htmlImagesArray.notLoaded = [];
htmlImagesArray.addImage = function(img) {
htmlImagesArray.notLoaded.push(img);
htmlImagesArray.addImage = function(image) {
htmlImagesArray.notLoaded.push(image);
};
htmlImagesArray.loaded = function(loadedImg) {
var notloadedImgs = htmlImagesArray.notLoaded;
for (var x = 0; x < notloadedImgs.length; x++) {
if (notloadedImgs[x] == loadedImg) {
if (notloadedImgs[x] === loadedImg) {
notloadedImgs.splice(x, 1);
for (var y = 0; y < htmlImagesSrcArray.length; y++) {
var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf("/"));
if (loadedImg.src.lastIndexOf(imgName) != -1) {
if (loadedImg.src.lastIndexOf(imgName) !== -1) {
htmlImagesArray[y] = loadedImg;
break;
}
@ -51,13 +45,12 @@ define(function() {
addOnloadHandler(img, htmlImagesArray);
img.src = htmlImagesSrcArray[i];
}
};
};
function addOnloadHandler(img, htmlImagesArray) {
function addOnloadHandler(img, htmlImagesArray) {
img.onload = function() {
htmlImagesArray.loaded(this);
};
}
}
return (ImageLoader);
});
export default (ImageLoader);

212
src/image_wrapper.js
Unescape Escape View File

@ -1,19 +1,9 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import SubImage from './subImage';
import CVUtils from './cv_utils';
import ArrayHelper from './array_helper';
import {vec2} from 'gl-matrix';
define([
"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.
* In addition, some methods for manipulation are contained.
* @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.
* @returns {ImageWrapper}
*/
function ImageWrapper(size, data, ArrayType, initialize) {
function ImageWrapper(size, data, ArrayType, initialize) {
if (!data) {
if (ArrayType) {
this.data = new ArrayType(size.x * size.y);
@ -35,95 +25,27 @@ define([
ArrayHelper.init(this.data, 0);
}
}
} else {
this.data = data;
}
this.size = size;
}
}
/**
/**
* tests if a position is within the image with a given offset
* @param imgRef {x, y} The location to test
* @param border Number the padding value in pixel
* @returns {Boolean} true if location inside the image's border, false otherwise
* @see cvd/image.h
*/
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));
};
/**
* Transforms an image according to the given affine-transformation matrix.
* @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 M mat2 the matrix used to map point in the out matrix to those in the in matrix
* @param inOrig vec2 origin in the in image
* @param outOrig vec2 origin in the out image
* @returns Number the number of pixels not in the in image
* @see cvd/vision.h
*/
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 across = vec2.clone([M[0], M[2]]);
var down = vec2.clone([M[1], M[3]]);
var defaultValue = 0;
var p0 = vec2.subtract(inOrig, mat2.xVec2(M, outOrig, vec2.clone()), vec2.clone());
var min_x = p0[0], min_y = p0[1];
var max_x = min_x, max_y = min_y;
var p, i, j;
var sampleFunc = ImageWrapper.sample;
if (across[0] < 0)
min_x += w * across[0];
else
max_x += w * across[0];
if (down[0] < 0)
min_x += h * down[0];
else
max_x += h * down[0];
if (across[1] < 0)
min_y += w * across[1];
else
max_y += w * across[1];
if (down[1] < 0)
min_y += h * down[1];
else
max_y += h * down[1];
var carrigeReturn = vec2.subtract(down, vec2.scale(across, w, vec2.clone()), vec2.clone());
if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) {
p = p0;
for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn))
for ( j = 0; j < w; ++j, vec2.add(p, across))
outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));
return 0;
} else {
var x_bound = iw - 1;
var y_bound = ih - 1;
var count = 0;
p = p0;
for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) {
for ( j = 0; j < w; ++j, vec2.add(p, across)) {
if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) {
outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));
} else {
outImg.set(j, i, defaultValue); ++count;
}
}
}
return count;
}
};
/**
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));
};
/**
* Performs bilinear sampling
* @param inImg Image to extract sample from
* @param x the x-coordinate
@ -131,7 +53,7 @@ define([
* @returns the sampled value
* @see cvd/vision.h
*/
ImageWrapper.sample = function(inImg, x, y) {
ImageWrapper.sample = function(inImg, x, y) {
var lx = Math.floor(x);
var ly = Math.floor(y);
var w = inImg.size.x;
@ -146,35 +68,35 @@ define([
var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a);
return result;
};
};
/**
/**
* Initializes a given array. Sets each element to zero.
* @param array {Array} The array to initialize
*/
ImageWrapper.clearArray = function(array) {
ImageWrapper.clearArray = function(array) {
var l = array.length;
while (l--) {
array[l] = 0;
}
};
};
/**
/**
* Creates a {SubImage} from the current image ({this}).
* @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)
* @param size {ImageRef} The size of the resulting 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);
};
};
/**
/**
* Creates an {ImageWrapper) and copies the needed underlying image-data area
* @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied
* @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 x, y;
for ( x = 0; x < sizeX; x++) {
@ -182,39 +104,39 @@ define([
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;
while (length--) {
dstData[length] = srcData[length];
}
};
};
/**
/**
* Retrieves a given pixel position from the image
* @param x {Number} The x-position
* @param y {Number} The y-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];
};
};
/**
/**
* Retrieves a given pixel position from the image
* @param x {Number} The x-position
* @param y {Number} The y-position
* @returns {Number} The grayscale value at the pixel-position
*/
ImageWrapper.prototype.getSafe = function(x, y) {
ImageWrapper.prototype.getSafe = function(x, y) {
var i;
if (!this.indexMapping) {
this.indexMapping = {
x : [],
y : []
x: [],
y: []
};
for (i = 0; i < this.size.x; i++) {
this.indexMapping.x[i] = i;
@ -226,24 +148,24 @@ define([
}
}
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
* @param x {Number} The x-position
* @param y {Number} The y-position
* @param value {Number} The grayscale value to set
* @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;
return this;
};
};
/**
/**
* 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;
for ( i = 0; i < width; i++) {
data[i] = data[(height - 1) * width + i] = 0;
@ -251,36 +173,35 @@ define([
for ( i = 1; i < height - 1; i++) {
data[i * width] = data[i * width + (width - 1)] = 0;
}
};
};
/**
/**
* Inverts a binary image in place
*/
ImageWrapper.prototype.invert = function() {
ImageWrapper.prototype.invert = function() {
var data = this.data, length = data.length;
while (length--) {
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;
for ( y = 0; y < this.size.y; y++) {
for ( x = 0; x < this.size.x; x++) {
accu = 0;
for ( ky = -kSize; ky <= kSize; ky++) {
for ( kx = -kSize; kx <= kSize; kx++) {
accu += kernel[ky+kSize][kx + kSize] * this.getSafe(x + kx, y + ky);
accu += kernel[ky + kSize][kx + kSize] * this.getSafe(x + kx, y + ky);
}
}
this.data[y * this.size.x + x] = accu;
}
}
};
};
ImageWrapper.prototype.moments = function(labelcount) {
ImageWrapper.prototype.moments = function(labelcount) {
var data = this.data,
x,
y,
@ -307,14 +228,14 @@ define([
for ( i = 0; i < labelcount; i++) {
labelsum[i] = {
m00 : 0,
m01 : 0,
m10 : 0,
m11 : 0,
m02 : 0,
m20 : 0,
theta : 0,
rad : 0
m00: 0,
m01: 0,
m10: 0,
m11: 0,
m02: 0,
m20: 0,
theta: 0,
rad: 0
};
}
@ -355,14 +276,14 @@ define([
}
return result;
};
};
/**
/**
* Displays the {ImageWrapper} in a given canvas
* @param canvas {Canvas} The canvas element to write to
* @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,
frame,
data,
@ -392,14 +313,14 @@ define([
}
//frame.data = data;
ctx.putImageData(frame, 0, 0);
};
};
/**
/**
* Displays the {SubImage} in a given canvas
* @param canvas {Canvas} The canvas element to write to
* @param scale {Number} Scale which is applied to each pixel-value
*/
ImageWrapper.prototype.overlay = function(canvas, scale, from) {
ImageWrapper.prototype.overlay = function(canvas, scale, from) {
if (!scale || scale < 0 || scale > 360) {
scale = 360;
}
@ -421,7 +342,6 @@ define([
data[length * 4 + 3] = 255;
}
ctx.putImageData(frame, from.x, from.y);
};
};
return (ImageWrapper);
});
export default ImageWrapper;

52
src/input_stream.js
Unescape Escape View File

@ -1,11 +1,7 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import ImageLoader from './image_loader';
define(["image_loader"], function(ImageLoader) {
"use strict";
var InputStream = {};
InputStream.createVideoStream = function(video) {
var InputStream = {};
InputStream.createVideoStream = function(video) {
var that = {},
_config = null,
_eventNames = ['canrecord', 'ended'],
@ -19,8 +15,10 @@ define(["image_loader"], function(ImageLoader) {
var width = video.videoWidth,
height = video.videoHeight;
_calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width;
_calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height;
_calculatedWidth =
_config.size ? width / height > 1 ? _config.size : Math.floor((width / height) * _config.size) : width;
_calculatedHeight =
_config.size ? width / height > 1 ? Math.floor((height / width) * _config.size) : _config.size : height;
_canvasSize.x = _calculatedWidth;
_canvasSize.y = _calculatedHeight;
@ -76,8 +74,9 @@ define(["image_loader"], function(ImageLoader) {
};
that.setCurrentTime = function(time) {
if (_config.type !== "LiveStream")
if (_config.type !== "LiveStream") {
video.currentTime = time;
}
};
that.addEventListener = function(event, f, bool) {
@ -139,9 +138,9 @@ define(["image_loader"], function(ImageLoader) {
};
return that;
};
};
InputStream.createLiveStream = function(video) {
InputStream.createLiveStream = function(video) {
video.setAttribute("autoplay", true);
var that = InputStream.createVideoStream(video);
@ -150,9 +149,9 @@ define(["image_loader"], function(ImageLoader) {
};
return that;
};
};
InputStream.createImageStream = function() {
InputStream.createImageStream = function() {
var that = {};
var _config = null;
@ -179,8 +178,10 @@ define(["image_loader"], function(ImageLoader) {
imgArray = imgs;
width = imgs[0].width;
height = imgs[0].height;
calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width;
calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height;
calculatedWidth =
_config.size ? width / height > 1 ? _config.size : Math.floor((width / height) * _config.size) : width;
calculatedHeight =
_config.size ? width / height > 1 ? Math.floor((height / width) * _config.size) : _config.size : height;
_canvasSize.x = calculatedWidth;
_canvasSize.y = calculatedHeight;
loaded = true;
@ -213,12 +214,12 @@ define(["image_loader"], function(ImageLoader) {
return calculatedHeight;
};
that.setWidth = function(width) {
calculatedWidth = width;
that.setWidth = function(newWidth) {
calculatedWidth = newWidth;
};
that.setHeight = function(height) {
calculatedHeight = height;
that.setHeight = function(newHeight) {
calculatedHeight = newHeight;
};
that.getRealWidth = function() {
@ -281,9 +282,9 @@ define(["image_loader"], function(ImageLoader) {
return _topRight;
};
that.setCanvasSize = function(size) {
_canvasSize.x = size.x;
_canvasSize.y = size.y;
that.setCanvasSize = function(canvasSize) {
_canvasSize.x = canvasSize.x;
_canvasSize.y = canvasSize.y;
};
that.getCanvasSize = function() {
@ -311,7 +312,6 @@ define(["image_loader"], function(ImageLoader) {
};
return that;
};
};
return (InputStream);
});
export default InputStream;

198
src/quagga.js
Unescape Escape View File

@ -1,43 +1,29 @@
/* jshint undef: true, unused: true, browser:true, devel: true, evil: true */
/* global define */
define([
"input_stream",
"image_wrapper",
"barcode_locator",
"barcode_decoder",
"frame_grabber",
"html_utils",
"config",
"events",
"camera_access",
"image_debug",
"gl-matrix",
"result_collector"],
function(InputStream,
ImageWrapper,
BarcodeLocator,
BarcodeDecoder,
FrameGrabber,
HtmlUtils,
_config,
Events,
CameraAccess,
ImageDebug,
glMatrix,
ResultCollector) {
"use strict";
var _inputStream,
import TypeDefs from './typedefs'; // eslint-disable-line no-unused-vars
import ImageWrapper from './image_wrapper';
import BarcodeLocator from './barcode_locator';
import BarcodeDecoder from './barcode_decoder';
import Config from './config';
import Events from './events';
import CameraAccess from './camera_access';
import ImageDebug from './image_debug';
import {vec2} from 'gl-matrix';
import ResultCollector from './result_collector';
const merge = require('lodash/object/merge');
const InputStream = require('input_stream');
const FrameGrabber = require('frame_grabber');
var _inputStream,
_framegrabber,
_stopped,
_canvasContainer = {
ctx : {
image : null,
overlay : null
ctx: {
image: null,
overlay: null
},
dom : {
image : null,
overlay : null
dom: {
image: null,
overlay: null
}
},
_inputImageWrapper,
@ -45,15 +31,15 @@ function(InputStream,
_decoder,
_workerPool = [],
_onUIThread = true,
vec2 = glMatrix.vec2,
_resultCollector;
_resultCollector,
_config = {};
function initializeData(imageWrapper) {
function initializeData(imageWrapper) {
initBuffers(imageWrapper);
_decoder = BarcodeDecoder.create(_config.decoder, _inputImageWrapper);
}
}
function initConfig() {
function initConfig() {
if (typeof document !== "undefined") {
var vis = [{
node: document.querySelector("div[data-controls]"),
@ -73,16 +59,16 @@ function(InputStream,
}
}
}
}
}
function initInputStream(cb) {
function initInputStream(cb) {
var video;
if (_config.inputStream.type == "VideoStream") {
if (_config.inputStream.type === "VideoStream") {
video = document.createElement("video");
_inputStream = InputStream.createVideoStream(video);
} else if (_config.inputStream.type == "ImageStream") {
} else if (_config.inputStream.type === "ImageStream") {
_inputStream = InputStream.createImageStream();
} else if (_config.inputStream.type == "LiveStream") {
} else if (_config.inputStream.type === "LiveStream") {
var $viewport = document.querySelector("#interactive.viewport");
if ($viewport) {
video = $viewport.querySelector("video");
@ -105,9 +91,9 @@ function(InputStream,
_inputStream.setAttribute("autoplay", true);
_inputStream.setInputStream(_config.inputStream);
_inputStream.addEventListener("canrecord", canRecord.bind(undefined, cb));
}
}
function canRecord(cb) {
function canRecord(cb) {
BarcodeLocator.checkImageConstraints(_inputStream, _config.locator);
initCanvas();
_framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image);
@ -122,21 +108,21 @@ function(InputStream,
initializeData();
ready(cb);
}
}
}
function ready(cb){
function ready(cb){
_inputStream.play();
cb();
}
}
function initCanvas() {
function initCanvas() {
if (typeof document !== "undefined") {
var $viewport = document.querySelector("#interactive.viewport");
_canvasContainer.dom.image = document.querySelector("canvas.imgBuffer");
if (!_canvasContainer.dom.image) {
_canvasContainer.dom.image = document.createElement("canvas");
_canvasContainer.dom.image.className = "imgBuffer";
if ($viewport && _config.inputStream.type == "ImageStream") {
if ($viewport && _config.inputStream.type === "ImageStream") {
$viewport.appendChild(_canvasContainer.dom.image);
}
}
@ -161,15 +147,15 @@ function(InputStream,
_canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x;
_canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y;
}
}
}
function initBuffers(imageWrapper) {
function initBuffers(imageWrapper) {
if (imageWrapper) {
_inputImageWrapper = imageWrapper;
} else {
_inputImageWrapper = new ImageWrapper({
x : _inputStream.getWidth(),
y : _inputStream.getHeight()
x: _inputStream.getWidth(),
y: _inputStream.getHeight()
});
}
@ -181,9 +167,9 @@ function(InputStream,
vec2.clone([_inputImageWrapper.size.x, 0])
];
BarcodeLocator.init(_inputImageWrapper, _config.locator);
}
}
function getBoundingBoxes() {
function getBoundingBoxes() {
if (_config.locate) {
return BarcodeLocator.locate();
} else {
@ -193,9 +179,9 @@ function(InputStream,
vec2.clone(_boxSize[2]),
vec2.clone(_boxSize[3])]];
}
}
}
function transformResult(result) {
function transformResult(result) {
var topRight = _inputStream.getTopRight(),
xOffset = topRight.x,
yOffset = topRight.y,
@ -218,7 +204,7 @@ function(InputStream,
function moveBox(box) {
var corner = box.length;
while(corner--) {
while (corner--) {
box[corner][0] += xOffset;
box[corner][1] += yOffset;
}
@ -230,9 +216,9 @@ function(InputStream,
line[1].x += xOffset;
line[1].y += yOffset;
}
}
}
function publishResult(result, imageData) {
function publishResult(result, imageData) {
if (_onUIThread) {
transformResult(result);
if (imageData && result && result.codeResult) {
@ -246,9 +232,9 @@ function(InputStream,
if (result && result.codeResult) {
Events.publish("detected", result);
}
}
}
function locateAndDecode() {
function locateAndDecode() {
var result,
boxes;
@ -261,9 +247,9 @@ function(InputStream,
} else {
publishResult();
}
}
}
function update() {
function update() {
var availableWorker;
if (_onUIThread) {
@ -293,21 +279,21 @@ function(InputStream,
} else {
locateAndDecode();
}
}
}
function start() {
function start() {
_stopped = false;
( function frame() {
if (!_stopped) {
update();
if (_onUIThread && _config.inputStream.type == "LiveStream") {
if (_onUIThread && _config.inputStream.type === "LiveStream") {
window.requestAnimFrame(frame);
}
}
}());
}
}
function initWorkers(cb) {
function initWorkers(cb) {
var i;
_workerPool = [];
@ -321,9 +307,9 @@ function(InputStream,
cb();
}
}
}
}
function initWorker(cb) {
function initWorker(cb) {
var blobURL,
workerThread = {
worker: undefined,
@ -356,20 +342,18 @@ function(InputStream,
imageData: workerThread.imageData,
config: _config
}, [workerThread.imageData.buffer]);
}
}
function workerInterface(factory) {
function workerInterface(factory) {
/* eslint-disable no-undef*/
if (factory) {
/* jshint ignore:start */
var Quagga = factory();
if (!Quagga) {
self.postMessage({'event': 'error', message: 'Quagga could not be created'});
return;
}
/* jshint ignore:end */
}
/* jshint ignore:start */
var imageWrapper;
self.onmessage = function(e) {
@ -377,8 +361,8 @@ function(InputStream,
var config = e.data.config;
config.numOfWorkers = 0;
imageWrapper = new Quagga.ImageWrapper({
x : e.data.size.x,
y : e.data.size.y
x: e.data.size.x,
y: e.data.size.y
}, new Uint8Array(e.data.imageData));
Quagga.init(config, ready, imageWrapper);
Quagga.onProcessed(onProcessed);
@ -391,32 +375,37 @@ function(InputStream,
};
function onProcessed(result) {
self.postMessage({'event': 'processed', imageData: imageWrapper.data, result: result}, [imageWrapper.data.buffer]);
self.postMessage({
'event': 'processed',
imageData: imageWrapper.data,
result: result
}, [imageWrapper.data.buffer]);
}
function ready() {
function ready() { // eslint-disable-line
self.postMessage({'event': 'initialized', imageData: imageWrapper.data}, [imageWrapper.data.buffer]);
}
/* jshint ignore:end */
}
function generateWorkerBlob() {
/* eslint-enable */
}
function generateWorkerBlob() {
var blob,
factorySource;
/* jshint ignore:start */
if (typeof __factorySource__ !== 'undefined') {
factorySource = __factorySource__;
factorySource = __factorySource__; // eslint-disable-line no-undef
}
/* jshint ignore:end */
blob = new Blob(['(' + workerInterface.toString() + ')(' + factorySource + ');'],
{type : 'text/javascript'});
{type: 'text/javascript'});
return window.URL.createObjectURL(blob);
}
}
function setReaders(readers) {
function setReaders(readers) {
if (_decoder) {
_decoder.setReaders(readers);
} else if (_onUIThread && _workerPool.length > 0) {
@ -424,11 +413,11 @@ function(InputStream,
workerThread.worker.postMessage({cmd: 'setReaders', readers: readers});
});
}
}
}
return {
init : function(config, cb, imageWrapper) {
_config = HtmlUtils.mergeObjects(_config, config);
export default {
init: function(config, cb, imageWrapper) {
_config = merge({}, Config, config);
if (imageWrapper) {
_onUIThread = false;
initializeData(imageWrapper);
@ -437,10 +426,10 @@ function(InputStream,
initInputStream(cb);
}
},
start : function() {
start: function() {
start();
},
stop : function() {
stop: function() {
_stopped = true;
_workerPool.forEach(function(workerThread) {
workerThread.worker.terminate();
@ -455,7 +444,7 @@ function(InputStream,
pause: function() {
_stopped = true;
},
onDetected : function(callback) {
onDetected: function(callback) {
Events.subscribe("detected", callback);
},
offDetected: function(callback) {
@ -475,12 +464,12 @@ function(InputStream,
_resultCollector = resultCollector;
}
},
canvas : _canvasContainer,
decodeSingle : function(config, resultCallback) {
config = HtmlUtils.mergeObjects({
canvas: _canvasContainer,
decodeSingle: function(config, resultCallback) {
config = merge({
inputStream: {
type : "ImageStream",
sequence : false,
type: "ImageStream",
sequence: false,
size: 800,
src: config.src
},
@ -500,5 +489,4 @@ function(InputStream,
ImageWrapper: ImageWrapper,
ImageDebug: ImageDebug,
ResultCollector: ResultCollector
};
});
};

61
src/rasterizer.js
Unescape Escape View File

@ -1,33 +1,29 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import Tracer from './tracer';
/**
* http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization
*/
define(["tracer"], function(Tracer) {
"use strict";
var Rasterizer = {
createContour2D : function() {
var Rasterizer = {
createContour2D: function() {
return {
dir : null,
index : null,
firstVertex : null,
insideContours : null,
nextpeer : null,
prevpeer : null
dir: null,
index: null,
firstVertex: null,
insideContours: null,
nextpeer: null,
prevpeer: null
};
},
CONTOUR_DIR : {
CW_DIR : 0,
CCW_DIR : 1,
UNKNOWN_DIR : 2
CONTOUR_DIR: {
CW_DIR: 0,
CCW_DIR: 1,
UNKNOWN_DIR: 2
},
DIR : {
OUTSIDE_EDGE : -32767,
INSIDE_EDGE : -32766
DIR: {
OUTSIDE_EDGE: -32767,
INSIDE_EDGE: -32766
},
create : function(imageWrapper, labelWrapper) {
create: function(imageWrapper, labelWrapper) {
var imageData = imageWrapper.data,
labelData = labelWrapper.data,
width = imageWrapper.size.x,
@ -35,7 +31,7 @@ define(["tracer"], function(Tracer) {
tracer = Tracer.create(imageWrapper, labelWrapper);
return {
rasterize : function(depthlabel) {
rasterize: function(depthlabel) {
var color,
bc,
lc,
@ -85,7 +81,8 @@ define(["tracer"], function(Tracer) {
cc = p;
}
} else {
vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex);
vertex = tracer
.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex);
if (vertex !== null) {
p = Rasterizer.createContour2D();
p.firstVertex = vertex;
@ -112,7 +109,8 @@ define(["tracer"], function(Tracer) {
} else {
labelData[pos] = labelindex;
}
} else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {
} else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE
|| labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {
labelindex = 0;
if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {
bc = imageData[pos];
@ -131,12 +129,12 @@ define(["tracer"], function(Tracer) {
sc = sc.nextpeer;
}
return {
cc : cc,
count : connectedCount
cc: cc,
count: connectedCount
};
},
debug: {
drawContour : function(canvas, firstContour) {
drawContour: function(canvas, firstContour) {
var ctx = canvas.getContext("2d"),
pq = firstContour,
iq,
@ -167,7 +165,7 @@ define(["tracer"], function(Tracer) {
}
}
switch(q.dir) {
switch (q.dir) {
case Rasterizer.CONTOUR_DIR.CW_DIR:
ctx.strokeStyle = "red";
break;
@ -185,14 +183,13 @@ define(["tracer"], function(Tracer) {
do {
p = p.next;
ctx.lineTo(p.x, p.y);
} while(p !== q.firstVertex);
} while (p !== q.firstVertex);
ctx.stroke();
}
}
}
};
}
};
};
return (Rasterizer);
});
export default Rasterizer;

24
src/result_collector.js
Unescape Escape View File

@ -1,10 +1,6 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import ImageDebug from './image_debug';
define(["image_debug"], function(ImageDebug) {
"use strict";
function contains(codeResult, list) {
function contains(codeResult, list) {
if (list) {
return list.some(function (item) {
return Object.keys(item).every(function (key) {
@ -13,16 +9,16 @@ define(["image_debug"], function(ImageDebug) {
});
}
return false;
}
}
function passesFilter(codeResult, filter) {
function passesFilter(codeResult, filter) {
if (typeof filter === 'function') {
return filter(codeResult);
}
return true;
}
}
return {
export default {
create: function(config) {
var canvas = document.createElement("canvas"),
ctx = canvas.getContext("2d"),
@ -31,7 +27,10 @@ define(["image_debug"], function(ImageDebug) {
capture = config.capture === true;
function matchesConstraints(codeResult) {
return capacity && codeResult && !contains(codeResult, config.blacklist) && passesFilter(codeResult, config.filter);
return capacity
&& codeResult
&& !contains(codeResult, config.blacklist)
&& passesFilter(codeResult, config.filter);
}
return {
@ -55,5 +54,4 @@ define(["image_debug"], function(ImageDebug) {
}
};
}
};
});
};

41
src/skeletonizer.js
Unescape Escape View File

@ -1,11 +1,6 @@
/* jshint undef: true, unused: true, browser:true, devel: true, -W041: false */
/* global define */
define(function() {
"use strict";
/* @preserve ASM BEGIN */
function Skeletonizer(stdlib, foreign, buffer) {
/* @preserve ASM BEGIN */
/* eslint-disable eqeqeq*/
function Skeletonizer(stdlib, foreign, buffer) {
"use asm";
var images = new stdlib.Uint8Array(buffer),
@ -32,7 +27,11 @@ define(function() {
yStart2 = (offset + size) | 0;
xStart1 = (u - 1) | 0;
xStart2 = (u + 1) | 0;
sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0;
sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0)
+ (images[(inImagePtr + yStart1 + xStart2) | 0] | 0)
+ (images[(inImagePtr + offset + u) | 0] | 0)
+ (images[(inImagePtr + yStart2 + xStart1) | 0] | 0)
+ (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0;
if ((sum | 0) == (5 | 0)) {
images[(outImagePtr + offset + u) | 0] = 1;
} else {
@ -54,7 +53,8 @@ define(function() {
while ((length | 0) > 0) {
length = (length - 1) | 0;
images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0;
images[(outImagePtr + length) | 0] =
((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0;
}
}
@ -69,7 +69,8 @@ define(function() {
while ((length | 0) > 0) {
length = (length - 1) | 0;
images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0;
images[(outImagePtr + length) | 0] =
((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0;
}
}
@ -123,7 +124,11 @@ define(function() {
yStart2 = (offset + size) | 0;
xStart1 = (u - 1) | 0;
xStart2 = (u + 1) | 0;
sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0;
sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0)
+ (images[(inImagePtr + yStart1 + xStart2) | 0] | 0)
+ (images[(inImagePtr + offset + u) | 0] | 0)
+ (images[(inImagePtr + yStart2 + xStart1) | 0] | 0)
+ (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0;
if ((sum | 0) > (0 | 0)) {
images[(outImagePtr + offset + u) | 0] = 1;
} else {
@ -191,14 +196,14 @@ define(function() {
memcpy(erodedImagePtr, subImagePtr);
sum = countNonZero(subImagePtr) | 0;
done = ((sum | 0) == 0 | 0);
} while(!done);
} while (!done);
}
return {
skeletonize : skeletonize
skeletonize: skeletonize
};
}
/* @preserve ASM END */
}
return Skeletonizer;
});
export default Skeletonizer;
/* eslint-enable eqeqeq*/
/* @preserve ASM END */

43
src/subImage.js
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@ -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
* between the parent and the child.
* @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)
@ -12,11 +6,11 @@ define(["typedefs"], function() {
* @param I {ImageWrapper} The {ImageWrapper} to share from
* @returns {SubImage} A shared part of the original image
*/
function SubImage(from, size, I) {
function SubImage(from, size, I) {
if (!I) {
I = {
data : null,
size : size
data: null,
size: size
};
}
this.data = I.data;
@ -25,14 +19,14 @@ define(["typedefs"], function() {
this.from = from;
this.size = size;
}
}
/**
/**
* Displays the {SubImage} in a given canvas
* @param canvas {Canvas} The canvas element to write to
* @param scale {Number} Scale which is applied to each pixel-value
*/
SubImage.prototype.show = function(canvas, scale) {
SubImage.prototype.show = function(canvas, scale) {
var ctx,
frame,
data,
@ -62,36 +56,35 @@ define(["typedefs"], function() {
}
frame.data = data;
ctx.putImageData(frame, 0, 0);
};
};
/**
/**
* Retrieves a given pixel position from the {SubImage}
* @param x {Number} The x-position
* @param y {Number} The y-position
* @returns {Number} The grayscale value at the pixel-position
*/
SubImage.prototype.get = function(x, y) {
SubImage.prototype.get = function(x, y) {
return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x];
};
};
/**
/**
* Updates the underlying data from a given {ImageWrapper}
* @param image {ImageWrapper} The updated image
*/
SubImage.prototype.updateData = function(image) {
SubImage.prototype.updateData = function(image) {
this.originalSize = image.size;
this.data = image.data;
};
};
/**
/**
* Updates the position of the shared area
* @param from {x,y} The new location
* @returns {SubImage} returns {this} for possible chaining
*/
SubImage.prototype.updateFrom = function(from) {
SubImage.prototype.updateFrom = function(from) {
this.from = from;
return this;
};
};
return (SubImage);
});
export default (SubImage);

41
src/tracer.js
Unescape Escape View File

@ -1,15 +1,9 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
/**
* http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization
*/
define(function() {
"use strict";
var Tracer = {
searchDirections : [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]],
create : function(imageWrapper, labelWrapper) {
var Tracer = {
searchDirections: [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]],
create: function(imageWrapper, labelWrapper) {
var imageData = imageWrapper.data,
labelData = labelWrapper.data,
searchDirections = this.searchDirections,
@ -42,11 +36,11 @@ define(function() {
function vertex2D(x, y, dir) {
return {
dir : dir,
x : x,
y : y,
next : null,
prev : null
dir: dir,
x: x,
y: y,
next: null,
prev: null
};
}
@ -56,9 +50,9 @@ define(function() {
P,
ldir,
current = {
cx : sx,
cy : sy,
dir : 0
cx: sx,
cy: sy,
dir: 0
};
if (trace(current, color, label, edgelabel)) {
@ -73,7 +67,7 @@ define(function() {
do {
current.dir = (current.dir + 6) % 8;
trace(current, color, label, edgelabel);
if (ldir != current.dir) {
if (ldir !== current.dir) {
Cv.dir = current.dir;
P = vertex2D(current.cx, current.cy, 0);
P.prev = Cv;
@ -86,7 +80,7 @@ define(function() {
Cv.y = current.cy;
}
ldir = current.dir;
} while(current.cx != sx || current.cy != sy);
} while (current.cx !== sx || current.cy !== sy);
Fv.prev = Cv.prev;
Cv.prev.next = Fv;
}
@ -94,15 +88,14 @@ define(function() {
}
return {
trace : function(current, color, label, edgelabel) {
trace: function(current, color, label, edgelabel) {
return trace(current, color, label, edgelabel);
},
contourTracing : function(sy, sx, label, color, edgelabel) {
contourTracing: function(sy, sx, label, color, edgelabel) {
return contourTracing(sy, sx, label, color, edgelabel);
}
};
}
};
};
return (Tracer);
});
export default (Tracer);

8
src/typedefs.js
Unescape Escape View File

@ -3,7 +3,6 @@
* Normalizes browser-specific prefixes
*/
glMatrixArrayType = Float32Array;
if (typeof window !== 'undefined') {
window.requestAnimFrame = (function () {
return window.requestAnimationFrame ||
@ -11,12 +10,13 @@ if (typeof window !== 'undefined') {
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function (/* function FrameRequestCallback */ callback, /* DOMElement Element */ element) {
function (/* function FrameRequestCallback */ callback) {
window.setTimeout(callback, 1000 / 60);
};
})();
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;
}
Math.imul = Math.imul || function(a, b) {
@ -26,5 +26,5 @@ Math.imul = Math.imul || function(a, b) {
bl = b & 0xffff;
// the shift by 0 fixes the sign on the high part
// 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);
};

67
src/upc_e_reader.js
Unescape Escape View File

@ -1,29 +1,21 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import EANReader from './ean_reader';
define(
[
"./ean_reader"
],
function(EANReader) {
"use strict";
function UPCEReader() {
function UPCEReader() {
EANReader.call(this);
}
}
var properties = {
CODE_FREQUENCY : {value: [
var properties = {
CODE_FREQUENCY: {value: [
[ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ],
[7, 11, 13, 14, 19, 25, 28, 21, 22, 26]]},
STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7]},
FORMAT: {value: "upc_e", writeable: false}
};
};
UPCEReader.prototype = Object.create(EANReader.prototype, properties);
UPCEReader.prototype.constructor = UPCEReader;
UPCEReader.prototype = Object.create(EANReader.prototype, properties);
UPCEReader.prototype.constructor = UPCEReader;
UPCEReader.prototype._decodePayload = function(code, result, decodedCodes) {
UPCEReader.prototype._decodePayload = function(code, result, decodedCodes) {
var i,
self = this,
codeFrequency = 0x0;
@ -45,16 +37,15 @@ define(
}
return code;
};
};
UPCEReader.prototype._determineParity = function(codeFrequency, result) {
var self =this,
i,
UPCEReader.prototype._determineParity = function(codeFrequency, result) {
var i,
nrSystem;
for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++){
for ( i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) {
if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) {
for (nrSystem = 0; nrSystem < this.CODE_FREQUENCY.length; nrSystem++){
for ( i = 0; i < this.CODE_FREQUENCY[nrSystem].length; i++) {
if (codeFrequency === this.CODE_FREQUENCY[nrSystem][i]) {
result.unshift(nrSystem);
result.push(i);
return true;
@ -62,9 +53,9 @@ define(
}
}
return false;
};
};
UPCEReader.prototype._convertToUPCA = function(result) {
UPCEReader.prototype._convertToUPCA = function(result) {
var upca = [result[0]],
lastDigit = result[result.length - 2];
@ -74,8 +65,8 @@ define(
.concat(result.slice(3, 6));
} else if (lastDigit === 3) {
upca = upca.concat(result.slice(1, 4))
.concat([0 ,0, 0, 0, 0])
.concat(result.slice(4,6));
.concat([0, 0, 0, 0, 0])
.concat(result.slice(4, 6));
} else if (lastDigit === 4) {
upca = upca.concat(result.slice(1, 5))
.concat([0, 0, 0, 0, 0, result[5]]);
@ -86,29 +77,27 @@ define(
upca.push(result[result.length - 1]);
return upca;
};
};
UPCEReader.prototype._checksum = function(result) {
UPCEReader.prototype._checksum = function(result) {
return EANReader.prototype._checksum.call(this, this._convertToUPCA(result));
};
};
UPCEReader.prototype._findEnd = function(offset, isWhite) {
UPCEReader.prototype._findEnd = function(offset, isWhite) {
isWhite = true;
return EANReader.prototype._findEnd.call(this, offset, isWhite);
};
};
UPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) {
UPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) {
var self = this,
trailingWhitespaceEnd;
trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start)/2);
trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2);
if (trailingWhitespaceEnd < self._row.length) {
if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {
return endInfo;
}
}
};
};
return (UPCEReader);
}
);
export default UPCEReader;

31
src/upc_reader.js
Unescape Escape View File

@ -1,35 +1,24 @@
/* jshint undef: true, unused: true, browser:true, devel: true */
/* global define */
import EANReader from './ean_reader';
define(
[
"./ean_reader"
],
function(EANReader) {
"use strict";
function UPCReader() {
function UPCReader() {
EANReader.call(this);
}
}
var properties = {
var properties = {
FORMAT: {value: "upc_a", writeable: false}
};
};
UPCReader.prototype = Object.create(EANReader.prototype, properties);
UPCReader.prototype.constructor = UPCReader;
UPCReader.prototype = Object.create(EANReader.prototype, properties);
UPCReader.prototype.constructor = UPCReader;
UPCReader.prototype._decode = function() {
UPCReader.prototype._decode = function() {
var result = EANReader.prototype._decode.call(this);
if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") {
result.code = result.code.substring(1);
return result;
}
return null;
};
};
return (UPCReader);
}
);
export default UPCReader;

39
tasks/uglyasm.js
Unescape Escape View File

@ -11,14 +11,17 @@ module.exports = function(grunt) {
var code = fs.readFileSync('dist/quagga.js', 'utf-8'),
minifiedCode = fs.readFileSync('dist/quagga.min.js', 'utf-8'),
commentEnd = '/* @preserve ASM END */',
asmStartIdx = code.indexOf('/* @preserve ASM BEGIN */'),
asmEndIdx = code.indexOf(commentEnd),
asmCode = code.substring(asmStartIdx, asmEndIdx + commentEnd.length),
asmFunctionRegex = /function (\w+)\(\w+,\s*\w+,\s*\w+\)\s*\{\s*"use asm";/,
moduleFunctionRegex = /function\s*\((\w+,\s*\w+)\)\s*\{\s*\/\* \@preserve ASM BEGIN \*\//,
commentStartIdx = code.indexOf("/* @preserve ASM BEGIN */"),
asmEndIdxTmp = code.indexOf(commentEnd),
asmEndIdx = code.indexOf("}", asmEndIdxTmp),
asmCodeTmp = code.substring(commentStartIdx - Math.min(500, commentStartIdx),
asmEndIdx + 1),
asmStartIdx = asmCodeTmp.search(moduleFunctionRegex),
asmCode = asmCodeTmp.substring(asmStartIdx),
asmModule,
asmModuleName,
asmCodeMinified,
asmMinifiedModuleName;
moduleArg1,
asmCodeMinified;
asmCodeMinified = asmCode
.replace(/\s*\/\/.*/g, '') // remove single-line comments
@ -29,27 +32,31 @@ module.exports = function(grunt) {
grunt.log.debug(asmCodeMinified);
asmModule = asmCode.match(asmFunctionRegex);
asmModule = moduleFunctionRegex.exec(asmCode);
if (!asmModule) {
grunt.log.error("No ASM module found");
return;
}
asmModuleName = asmModule[1];
grunt.log.debug(asmModuleName);
moduleArg1 = asmModule[1];
grunt.log.debug(moduleArg1);
asmModule = minifiedCode.match(asmFunctionRegex);
if (!asmModule) {
var insertionPoint = minifiedCode.search(moduleFunctionRegex);
if (insertionPoint === -1) {
grunt.log.error("No ASM module found in minified file");
return;
}
grunt.log.debug(insertionPoint);
var insertionPointEnd = minifiedCode.indexOf(commentEnd, insertionPoint);
insertionPointEnd = minifiedCode.indexOf("}", insertionPointEnd) + 1;
asmMinifiedModuleName = asmModule[1];
grunt.log.debug(asmMinifiedModuleName);
grunt.log.debug(insertionPointEnd);
asmCodeMinified = asmCodeMinified.replace(asmModuleName, asmMinifiedModuleName);
minifiedCode = minifiedCode.substring(0, insertionPoint)
+ asmCodeMinified
+ minifiedCode.substring(insertionPointEnd);
minifiedCode = minifiedCode.replace(/\/\* @preserve ASM BEGIN \*\/[^]*?\/\* @preserve ASM END \*\//, asmCodeMinified);
fs.writeFileSync('dist/quagga.min.js', minifiedCode);
grunt.log.ok('dist/quagga.min.js written');
});

55
test-main.js
Unescape Escape View File

@ -1,55 +0,0 @@
var allTestFiles = [];
var TEST_REGEXP = /(spec|test)\.js$/i;
var pathToModule = function(path) {
return path.replace(/^\/base\//, '').replace(/\.js$/, '');
};
Object.keys(window.__karma__.files).forEach(function(file) {
if (TEST_REGEXP.test(file)) {
allTestFiles.push(pathToModule(file));
}
});
require.config({
baseUrl: '/base',
paths: {
'array_helper': 'src/array_helper',
'cv_utils': 'src/cv_utils',
'typedefs': 'src/typedefs',
'cluster': 'src/cluster',
'camera_access': 'src/camera_access',
'events': 'src/events',
'html_utils': 'src/html_utils',
'quagga': 'src/quagga',
'barcode_decoder': 'src/barcode_decoder',
'barcode_locator': 'src/barcode_locator',
'barcode_reader': 'src/barcode_reader',
'bresenham': 'src/bresenham',
'codabar_reader': 'src/codabar_reader',
'code_39_reader': 'src/code_39_reader',
'code_39_vin_reader': 'src/code_39_vin_reader',
'code_128_reader': 'src/code_128_reader',
'config': 'src/config',
'ean_8_reader': 'src/ean_8_reader',
'ean_reader': 'src/ean_reader',
'frame_grabber': 'src/frame_grabber',
'image_debug': 'src/image_debug',
'image_loader': 'src/image_loader',
'image_wrapper': 'src/image_wrapper',
'input_stream': 'src/input_stream',
'rasterizer': 'src/rasterizer',
'skeletonizer': 'src/skeletonizer',
'subImage': 'src/subImage',
'tracer': 'src/tracer',
'upc_e_reader': 'src/upc_e_reader',
'upc_reader': 'src/upc_reader',
'async': 'node_modules/async/lib/async',
'gl-matrix': 'node_modules/gl-matrix/dist/gl-matrix-min',
'result_collector': 'src/result_collector',
'i2of5_reader': 'src/i2of5_reader'
},
deps: allTestFiles,
callback: window.__karma__.start
});

245
test/integration/integration.spec.js
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@ -0,0 +1,245 @@
const Quagga = require('../../src/quagga');
const async = require('async');
describe('decodeSingle', function () {
var baseFolder = "base/test/fixtures/";
function generateConfig() {
return {
inputStream: {
size: 640
},
locator: {
patchSize: "medium",
halfSample: true
},
numOfWorkers: 0,
decoder: {
readers: ["ean_reader"]
},
locate: true,
src: null
};
}
this.timeout(10000);
function _runTestSet(testSet, config) {
var readers = config.decoder.readers.slice(),
format,
folder;
if (typeof readers[0] === 'string'){
format = readers[0];
} else {
format = readers[0].format;
}
folder = baseFolder + format.split('_').slice(0, -1).join('_') + "/";
it('should decode ' + folder + " correctly", function(done) {
async.eachSeries(testSet, function (sample, callback) {
config.src = folder + sample.name;
config.readers = readers;
Quagga.decodeSingle(config, function(result) {
console.log(sample.name);
expect(result.codeResult.code).to.equal(sample.result);
expect(result.codeResult.format).to.equal(sample.format);
callback();
});
}, function() {
done();
});
});
}
describe("EAN", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "3574660239843"},
{"name": "image-002.jpg", "result": "8032754490297"},
{"name": "image-003.jpg", "result": "4006209700068"},
/* {"name": "image-004.jpg", "result": "9002233139084"}, */
/* {"name": "image-005.jpg", "result": "8004030044005"}, */
{"name": "image-006.jpg", "result": "4003626011159"},
{"name": "image-007.jpg", "result": "2111220009686"},
{"name": "image-008.jpg", "result": "9000275609022"},
{"name": "image-009.jpg", "result": "9004593978587"},
{"name": "image-010.jpg", "result": "9002244845578"}
];
testSet.forEach(function(sample) {
sample.format = "ean_13";
});
config.decoder.readers = ['ean_reader'];
_runTestSet(testSet, config);
});
describe("Code128", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "0001285112001000040801"},
// {"name": "image-002.jpg", "result": "FANAVF1461710"},
// {"name": "image-003.jpg", "result": "673023"},
// {"name": "image-004.jpg", "result": "010210150301625334"},
{"name": "image-005.jpg", "result": "419055603900009001012999"},
{"name": "image-006.jpg", "result": "419055603900009001012999"},
{"name": "image-007.jpg", "result": "T 000003552345"},
{"name": "image-008.jpg", "result": "FANAVF1461710"},
{"name": "image-009.jpg", "result": "0001285112001000040801"},
{"name": "image-010.jpg", "result": "673023"}
];
testSet.forEach(function(sample) {
sample.format = "code_128";
});
config.decoder.readers = ['code_128_reader'];
_runTestSet(testSet, config);
});
describe("Code39", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "B3% $DAD$"},
{"name": "image-003.jpg", "result": "CODE39"},
{"name": "image-004.jpg", "result": "QUAGGAJS"},
/* {"name": "image-005.jpg", "result": "CODE39"}, */
{"name": "image-006.jpg", "result": "2/4-8/16-32"},
{"name": "image-007.jpg", "result": "2/4-8/16-32"},
{"name": "image-008.jpg", "result": "CODE39"},
{"name": "image-009.jpg", "result": "2/4-8/16-32"},
{"name": "image-010.jpg", "result": "CODE39"}
];
testSet.forEach(function(sample) {
sample.format = "code_39";
});
config.decoder.readers = ['code_39_reader'];
_runTestSet(testSet, config);
});
describe("EAN-8", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "42191605"},
{"name": "image-002.jpg", "result": "42191605"},
{"name": "image-003.jpg", "result": "90311208"},
{"name": "image-004.jpg", "result": "24057257"},
{"name": "image-005.jpg", "result": "90162602"},
{"name": "image-006.jpg", "result": "24036153"},
{"name": "image-007.jpg", "result": "42176817"},
{"name": "image-008.jpg", "result": "42191605"},
{"name": "image-009.jpg", "result": "42242215"},
{"name": "image-010.jpg", "result": "42184799"}
];
testSet.forEach(function(sample) {
sample.format = "ean_8";
});
config.decoder.readers = ['ean_8_reader'];
_runTestSet(testSet, config);
});
describe("UPC", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "882428015268"},
{"name": "image-002.jpg", "result": "882428015268"},
{"name": "image-003.jpg", "result": "882428015084"},
{"name": "image-004.jpg", "result": "882428015343"},
{"name": "image-005.jpg", "result": "882428015343"},
/* {"name": "image-006.jpg", "result": "882428015046"}, */
{"name": "image-007.jpg", "result": "882428015084"},
{"name": "image-008.jpg", "result": "882428015046"},
{"name": "image-009.jpg", "result": "039047013551"},
{"name": "image-010.jpg", "result": "039047013551"}
];
testSet.forEach(function(sample) {
sample.format = "upc_a";
});
config.decoder.readers = ['upc_reader'];
_runTestSet(testSet, config);
});
describe("UPC-E", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "04965802"},
{"name": "image-002.jpg", "result": "04965802"},
{"name": "image-003.jpg", "result": "03897425"},
{"name": "image-004.jpg", "result": "05096893"},
{"name": "image-005.jpg", "result": "05096893"},
{"name": "image-006.jpg", "result": "05096893"},
{"name": "image-007.jpg", "result": "03897425"},
{"name": "image-008.jpg", "result": "01264904"},
/*{"name": "image-009.jpg", "result": "01264904"},*/
{"name": "image-010.jpg", "result": "01264904"}
];
testSet.forEach(function(sample) {
sample.format = "upc_e";
});
config.decoder.readers = ['upc_e_reader'];
_runTestSet(testSet, config);
});
describe("Codabar", function() {
var config = generateConfig(),
testSet = [
{"name": "image-001.jpg", "result": "A10/53+17-70D"},
{"name": "image-002.jpg", "result": "B546745735B"},
{"name": "image-003.jpg", "result": "C$399.95A"},
{"name": "image-004.jpg", "result": "B546745735B"},
{"name": "image-005.jpg", "result": "C$399.95A"},
{"name": "image-006.jpg", "result": "B546745735B"},
{"name": "image-007.jpg", "result": "C$399.95A"},
{"name": "image-008.jpg", "result": "A16:9/4:3/3:2D"},
{"name": "image-009.jpg", "result": "C$399.95A"},
{"name": "image-010.jpg", "result": "C$399.95A"}
];
testSet.forEach(function(sample) {
sample.format = "codabar";
});
config.decoder.readers = ['codabar_reader'];
_runTestSet(testSet, config);
});
describe("I2of5 with localization", function() {
var config = {
inputStream: {
size: 800,
singleChannel: false
},
locator: {
patchSize: "small",
halfSample: false
},
numOfWorkers: 0,
decoder: {
readers: ["i2of5_reader"]
},
locate: true,
src: null
},
testSet = [
{"name": "image-001.jpg", "result": "2167361334"},
{"name": "image-002.jpg", "result": "2167361334"},
{"name": "image-003.jpg", "result": "2167361334"},
{"name": "image-004.jpg", "result": "2167361334"},
{"name": "image-005.jpg", "result": "2167361334"}
];
testSet.forEach(function(sample) {
sample.format = "i2of5";
});
_runTestSet(testSet, config);
});
});

53
test/spec/array_helper.spec.js
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@ -0,0 +1,53 @@
const ArrayHelper = require('../../src/array_helper');
describe('init', function() {
it('initializes an array with the given value', function() {
var input = [0, 0, 0];
ArrayHelper.init(input, 5);
expect(input).to.deep.equal([5, 5, 5]);
});
});
describe('shuffle', function() {
before(function() {
sinon.stub(Math, 'random').returns(0.5);
});
after(function() {
sinon.restore(Math);
});
it('shuffles the content of an array', function() {
var input = [1, 2, 3];
expect(ArrayHelper.shuffle(input)).to.deep.equal([3, 1, 2]);
});
});
describe('toPointList', function() {
it('converts an Array to a List of poitns', function() {
var input = [[1, 2], [2, 2], [3, 2]];
expect(ArrayHelper.toPointList(input)).to.equal("[[1,2],\r\n[2,2],\r\n[3,2]]");
});
});
describe('threshold', function() {
it('returns all elements above the given threshold', function() {
var input = [1, 2, 3];
expect(ArrayHelper.threshold(input, 2, function(score) {
return score * 1.5;
})).to.deep.equal([2, 3]);
});
});
describe('maxIndex', function() {
it('gets the index of the biggest element in the array', function() {
var input = [1, 2, 3];
expect(ArrayHelper.maxIndex(input)).to.equal(2);
});
});
describe('max', function() {
it('gets the biggest element in the array', function() {
var input = [1, 3, 2];
expect(ArrayHelper.max(input)).to.equal(3);
});
});

130
test/spec/barcode_locator.spec.js
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@ -0,0 +1,130 @@
const BarcodeLocator = require('../../src/barcode_locator');
const Config = require('../../src/config');
const merge = require('lodash/object/merge');
describe('checkImageConstraints', function() {
var config,
inputStream,
imageSize,
streamConfig = {};
beforeEach(function() {
imageSize = {
x: 640, y: 480
};
config = merge({}, Config);
inputStream = {
getWidth: function() {
return imageSize.x;
},
getHeight: function() {
return imageSize.y;
},
setWidth: function() {},
setHeight: function() {},
setTopRight: function() {},
setCanvasSize: function() {},
getConfig: function() {
return streamConfig;
}
};
sinon.stub(inputStream, "setWidth", function(width) {
imageSize.x = width;
});
sinon.stub(inputStream, "setHeight", function(height) {
imageSize.y = height;
});
sinon.stub(inputStream, "setTopRight");
sinon.stub(inputStream, "setCanvasSize");
});
afterEach(function() {
inputStream.setWidth.restore();
inputStream.setHeight.restore();
});
it('should not adjust the image-size if not needed', function() {
var expected = {x: imageSize.x, y: imageSize.y};
BarcodeLocator.checkImageConstraints(inputStream, config.locator);
expect(inputStream.getWidth()).to.be.equal(expected.x);
expect(inputStream.getHeight()).to.be.equal(expected.y);
});
it('should adjust the image-size', function() {
var expected = {x: imageSize.x, y: imageSize.y};
config.locator.halfSample = true;
imageSize.y += 1;
BarcodeLocator.checkImageConstraints(inputStream, config.locator);
expect(inputStream.getWidth()).to.be.equal(expected.x);
expect(inputStream.getHeight()).to.be.equal(expected.y);
});
it('should adjust the image-size', function() {
var expected = {x: imageSize.x, y: imageSize.y};
imageSize.y += 1;
config.locator.halfSample = false;
BarcodeLocator.checkImageConstraints(inputStream, config.locator);
expect(inputStream.getHeight()).to.be.equal(expected.y);
expect(inputStream.getWidth()).to.be.equal(expected.x);
});
it("should take the defined area into account", function() {
var expectedSize = {
x: 420,
y: 315
},
expectedTopRight = {
x: 115,
y: 52
},
expectedCanvasSize = {
x: 640,
y: 480
};
streamConfig.area = {
top: "11%",
right: "15%",
bottom: "20%",
left: "18%"
};
config.locator.halfSample = false;
BarcodeLocator.checkImageConstraints(inputStream, config.locator);
expect(inputStream.getHeight()).to.be.equal(expectedSize.y);
expect(inputStream.getWidth()).to.be.equal(expectedSize.x);
expect(inputStream.setTopRight.getCall(0).args[0]).to.deep.equal(expectedTopRight);
expect(inputStream.setCanvasSize.getCall(0).args[0]).to.deep.equal(expectedCanvasSize);
});
it("should return the original size if set to full image", function() {
var expectedSize = {
x: 640,
y: 480
},
expectedTopRight = {
x: 0,
y: 0
},
expectedCanvasSize = {
x: 640,
y: 480
};
streamConfig.area = {
top: "0%",
right: "0%",
bottom: "0%",
left: "0%"
};
config.locator.halfSample = false;
BarcodeLocator.checkImageConstraints(inputStream, config.locator);
expect(inputStream.getHeight()).to.be.equal(expectedSize.y);
expect(inputStream.getWidth()).to.be.equal(expectedSize.x);
expect(inputStream.setTopRight.getCall(0).args[0]).to.deep.equal(expectedTopRight);
expect(inputStream.setCanvasSize.getCall(0).args[0]).to.deep.equal(expectedCanvasSize);
});
});

116
test/spec/camera_access.spec.js
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const CameraAccess = require('../../src/camera_access');
var originalURL,
originalMediaStreamTrack,
video,
stream;
beforeEach(function() {
var tracks = [{
stop: function() {}
}];
originalURL = window.URL;
originalMediaStreamTrack = window.MediaStreamTrack;
window.MediaStreamTrack = {};
window.URL = null;
stream = {
getVideoTracks: function() {
return tracks;
}
};
sinon.spy(tracks[0], "stop");
video = {
src: null,
addEventListener: function() {},
removeEventListener: function() {},
play: function() {},
videoWidth: 320,
videoHeight: 480
};
sinon.stub(video, "addEventListener", function(event, cb) {
cb();
});
sinon.stub(video, "play");
});
afterEach(function() {
window.URL = originalURL;
window.MediaStreamTrack = originalMediaStreamTrack;
});
describe('success', function() {
beforeEach(function() {
sinon.stub(navigator, "getUserMedia", function(constraints, success) {
success(stream);
});
});
afterEach(function() {
navigator.getUserMedia.restore();
});
describe('request', function () {
it('should request the camera', function (done) {
CameraAccess.request(video, {}, function () {
expect(navigator.getUserMedia.calledOnce).to.equal(true);
expect(video.src).to.deep.equal(stream);
done();
});
});
});
describe('release', function () {
it('should release the camera', function (done) {
CameraAccess.request(video, {}, function () {
expect(video.src).to.deep.equal(stream);
CameraAccess.release();
expect(video.src.getVideoTracks()).to.have.length(1);
expect(video.src.getVideoTracks()[0].stop.calledOnce).to.equal(true);
done();
});
});
});
});
describe('failure', function() {
describe("permission denied", function(){
before(function() {
sinon.stub(navigator, "getUserMedia", function(constraints, success, failure) {
failure(new Error());
});
});
after(function() {
navigator.getUserMedia.restore();
});
it('should throw if getUserMedia not available', function(done) {
CameraAccess.request(video, {}, function(err) {
expect(err).to.be.defined;
done();
});
});
});
describe("not available", function(){
var originalGetUserMedia;
before(function() {
originalGetUserMedia = navigator.getUserMedia;
navigator.getUserMedia = undefined;
});
after(function() {
navigator.getUserMedia = originalGetUserMedia;
});
it('should throw if getUserMedia not available', function(done) {
CameraAccess.request(video, {}, function(err) {
expect(err).to.be.defined;
done();
});
});
});
});

144
test/spec/cv_utils.spec.js
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const CVUtils = require('../../src/cv_utils');
describe('imageRef', function() {
it('gets the image Reference for a coordinate', function() {
var res = CVUtils.imageRef(1, 2);
expect(res.x).to.equal(1);
expect(res.y).to.equal(2);
expect(res.toVec2()[0]).to.equal(1);
});
});
describe('calculatePatchSize', function() {
it('should not throw an error in case of valid image size', function() {
var expected = {x: 32, y: 32},
patchSize = CVUtils.calculatePatchSize("medium", {x: 640, y: 480});
expect(patchSize).to.be.deep.equal(expected);
});
it('should thow an error if image size it not valid', function() {
var expected = {x: 32, y: 32},
patchSize = CVUtils.calculatePatchSize("medium", {x: 640, y: 480});
expect(patchSize).to.be.deep.equal(expected);
});
});
describe('_parseCSSDimensionValues', function() {
it("should convert a percentual value correctly", function() {
var expected = {
value: 10,
unit: "%"
},
result = CVUtils._parseCSSDimensionValues("10%");
expect(result).to.be.deep.equal(expected);
});
it("should convert a 0% value correctly", function() {
var expected = {
value: 100,
unit: "%"
},
result = CVUtils._parseCSSDimensionValues("100%");
expect(result).to.be.deep.equal(expected);
});
it("should convert a 100% value correctly", function() {
var expected = {
value: 0,
unit: "%"
},
result = CVUtils._parseCSSDimensionValues("0%");
expect(result).to.be.deep.equal(expected);
});
it("should convert a pixel value to percentage", function() {
var expected = {
value: 26.3,
unit: "%"
},
result = CVUtils._parseCSSDimensionValues("26.3px");
console.log(result);
expect(result).to.be.deep.equal(expected);
});
});
describe("_dimensionsConverters", function(){
var context;
beforeEach(function() {
context = {
width: 640,
height: 480
};
});
it("should convert a top-value correclty", function() {
var expected = 48,
result = CVUtils._dimensionsConverters.top({value: 10, unit: "%"}, context);
expect(result).to.be.equal(expected);
});
it("should convert a right-value correclty", function() {
var expected = 640 - 128,
result = CVUtils._dimensionsConverters.right({value: 20, unit: "%"}, context);
expect(result).to.be.equal(expected);
});
it("should convert a bottom-value correclty", function() {
var expected = 480 - 77,
result = CVUtils._dimensionsConverters.bottom({value: 16, unit: "%"}, context);
expect(result).to.be.equal(expected);
});
it("should convert a left-value correclty", function() {
var expected = 57,
result = CVUtils._dimensionsConverters.left({value: 9, unit: "%"}, context);
expect(result).to.be.equal(expected);
});
});
describe("computeImageArea", function() {
it("should calculate an image-area", function() {
var expected = {
sx: 115,
sy: 48,
sw: 429,
sh: 336
},
result = CVUtils.computeImageArea(640, 480, {
top: "10%",
right: "15%",
bottom: "20%",
left: "18%"
});
expect(result).to.be.deep.equal(expected);
});
it("should calculate full image-area", function() {
var expected = {
sx: 0,
sy: 0,
sw: 640,
sh: 480
},
result = CVUtils.computeImageArea(640, 480, {
top: "0%",
right: "0%",
bottom: "0%",
left: "0%"
});
expect(result).to.be.deep.equal(expected);
});
});

114
test/spec/events.spec.js
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const Events = require('../../src/events');
beforeEach(function() {
Events.unsubscribe();
});
describe("subscribe", function() {
it("should call one callback for a single event", function() {
var callbackA = sinon.stub(),
callbackB = sinon.stub();
Events.subscribe("test", callbackA);
Events.subscribe("test", callbackB);
Events.publish("test");
expect(callbackA.calledOnce).to.be.equal(true);
expect(callbackB.calledOnce).to.be.equal(true);
});
it("should call one callback twice if published twice", function() {
var callback = sinon.stub();
Events.subscribe("test", callback);
Events.publish("test");
Events.publish("test");
expect(callback.calledTwice).to.be.equal(true);
});
it("should call the callback asynchronuously", function(done) {
var test = {
callback: function() {
}
};
sinon.stub(test, "callback", function() {
expect(test.callback.calledOnce).to.be.true;
done();
});
Events.subscribe("test", test.callback, true);
Events.publish("test");
expect(test.callback.called).to.be.false;
});
});
describe("once", function() {
it("should call the callback once, even when published twice", function() {
var callbackA = sinon.stub(),
callbackB = sinon.stub();
Events.once("test", callbackA);
Events.subscribe("test", callbackB);
Events.publish("test");
Events.publish("test");
expect(callbackA.calledOnce).to.be.equal(true);
expect(callbackB.calledTwice).to.be.equal(true);
});
});
describe("unsubscribe", function() {
it("should unsubscribe all callbacks from a single event", function() {
var callbackA = sinon.stub(),
callbackB = sinon.stub(),
callbackC = sinon.stub();
Events.subscribe("test", callbackA);
Events.subscribe("test", callbackB);
Events.subscribe("testC", callbackC);
Events.publish("test");
expect(callbackC.called).to.be.equal(false);
expect(callbackA.calledOnce).to.be.equal(true);
expect(callbackB.calledOnce).to.be.equal(true);
Events.publish("testC");
expect(callbackC.calledOnce).to.be.equal(true);
expect(callbackA.calledOnce).to.be.equal(true);
expect(callbackB.calledOnce).to.be.equal(true);
Events.unsubscribe("test");
Events.publish("test");
expect(callbackC.calledOnce).to.be.equal(true);
expect(callbackA.calledOnce).to.be.equal(true);
expect(callbackB.calledOnce).to.be.equal(true);
});
it("should unsubscribe a single callback from a single event", function() {
var callbackA = sinon.stub(),
callbackB = sinon.stub();
Events.subscribe("test", callbackA);
Events.subscribe("test", callbackB);
Events.publish("test");
expect(callbackA.calledOnce).to.be.equal(true);
expect(callbackB.calledOnce).to.be.equal(true);
Events.unsubscribe("test", callbackB);
Events.publish("test");
expect(callbackA.calledTwice).to.be.equal(true);
expect(callbackB.calledOnce).to.be.equal(true);
});
});

103
test/spec/result_collector.spec.js
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const ResultCollector = require('../../src/result_collector');
const ImageDebug = require('../../src/image_debug');
var canvasMock,
imageSize,
config;
beforeEach(function() {
imageSize = {x: 320, y: 240};
config = {
capture: true,
capacity: 20,
blacklist: [{code: "3574660239843", format: "ean_13"}],
filter: function() {
return true;
}
};
canvasMock = {
getContext: function() {
return {};
},
toDataURL: sinon.spy(),
width: 0,
height: 0
};
sinon.stub(document, "createElement", function(type) {
if (type === "canvas") {
return canvasMock;
}
});
});
afterEach(function() {
document.createElement.restore();
});
describe('create', function () {
it("should return a new collector", function() {
ResultCollector.create(config);
expect(document.createElement.calledOnce).to.be.equal(true);
expect(document.createElement.getCall(0).args[0]).to.equal("canvas");
});
});
describe('addResult', function() {
beforeEach(function() {
sinon.stub(ImageDebug, "drawImage", function() {});
});
afterEach(function() {
ImageDebug.drawImage.restore();
});
it("should not add result if capacity is full", function(){
config.capacity = 1;
var collector = ResultCollector.create(config);
collector.addResult([], imageSize, {});
collector.addResult([], imageSize, {});
collector.addResult([], imageSize, {});
expect(collector.getResults()).to.have.length(1);
});
it("should only add results which match constraints", function(){
var collector = ResultCollector.create(config),
results;
collector.addResult([], imageSize, {code: "423423443", format: "ean_13"});
collector.addResult([], imageSize, {code: "3574660239843", format: "ean_13"});
collector.addResult([], imageSize, {code: "3574660239843", format: "code_128"});
results = collector.getResults();
expect(results).to.have.length(2);
results.forEach(function(result) {
expect(result).not.to.deep.equal(config.blacklist[0]);
});
});
it("should add result if no filter is set", function() {
delete config.filter;
var collector = ResultCollector.create(config);
collector.addResult([], imageSize, {code: "423423443", format: "ean_13"});
expect(collector.getResults()).to.have.length(1);
});
it("should not add results if filter returns false", function() {
config.filter = () => (false);
var collector = ResultCollector.create(config);
collector.addResult([], imageSize, {code: "423423443", format: "ean_13"});
expect(collector.getResults()).to.have.length(0);
});
it("should add result if no blacklist is set", function() {
delete config.blacklist;
var collector = ResultCollector.create(config);
collector.addResult([], imageSize, {code: "3574660239843", format: "ean_13"});
expect(collector.getResults()).to.have.length(1);
});
});

8
test/test-main-integration.js
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require('events').EventEmitter.prototype._maxListeners = 0;
require('core-js/es5');
const testsContext = require.context("./integration", true, /.*js$/);
testsContext.keys().forEach(testsContext);
const componentsContext = require.context('../src/', true, /\.*js$/);
componentsContext.keys().forEach(componentsContext);

8
test/test-main.js
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require('events').EventEmitter.prototype._maxListeners = 0;
require('core-js/es5');
const testsContext = require.context("./spec", true, /.*js$/);
testsContext.keys().forEach(testsContext);
const componentsContext = require.context('../src/', true, /\.*js$/);
componentsContext.keys().forEach(componentsContext);

39
webpack.config.js
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var webpack = require('webpack'),
MyUmdPlugin = require('./plugins/umd'),
path = require('path');
module.exports = {
entry: [
'./src/quagga.js'
],
devtool: 'source-map',
module: {
loaders: [{
test: /\.jsx?$/,
exclude: /node_modules/,
loader: 'babel'
}]
},
resolve: {
extensions: ['', '.js', '.jsx'],
alias: {
'input_stream$': path.resolve(__dirname, 'src/input_stream'),
'frame_grabber$': path.resolve(__dirname, 'src/frame_grabber')
}
},
output: {
path: __dirname + '/dist',
publicPath: '/',
filename: 'quagga.js',
sourceMapFilename: 'quagga.map'
},
devServer: {
contentBase: './',
hot: true
},
plugins: [
new MyUmdPlugin({
library: 'Quagga'
})
]
};

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webpack.config.min.js vendored
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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';
module.exports.output.sourceMapFilename = null;
module.exports.devtool = null;

24
webpack.node.config.js
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var webpack = require('webpack'),
path = require('path');
module.exports = require('./webpack.config.js');
module.exports.resolve = {
extensions: ['', '.js', '.jsx'],
alias: {
'input_stream$': path.resolve(__dirname, 'lib/input_stream'),
'frame_grabber$': path.resolve(__dirname, 'lib/frame_grabber')
}
};
module.exports.externals = [
"get-pixels",
"gl-matrix",
"lodash",
"ndarray",
"ndarray-linear-interpolate"
];
module.exports.output.libraryTarget = "commonjs2";
module.exports.plugins = [];
module.exports.output.path = __dirname + '/lib';
module.exports.output.filename = 'quagga.js';
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