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index.html
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index.html
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<!DOCTYPE html>
<!--[if lt IE 7]> <html class="no-js ie6 oldie" lang="en"> <![endif]-->
<!--[if IE 7]> <html class="no-js ie7 oldie" lang="en"> <![endif]-->
<!--[if IE 8]> <html class="no-js ie8 oldie" lang="en"> <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en"> <!--<![endif]-->
<head>
<title>Deep Belief in Javascript</title>
<script type="text/javascript" src="JavascriptLibrary/Utils/modernizr.js"></script>
<link rel="stylesheet" type="text/css" href="JavascriptLibrary/CSS/bootstrap-2.3.1.min.css" />
<link rel="stylesheet" type="text/css" href="JavascriptLibrary/CSS/bootstrap-responsive-2.3.1.min.css" />
<link rel="stylesheet" type="text/css" href="JavascriptLibrary/CSS/flat-ui.css" />
<link rel="stylesheet" type="text/css" href="JavascriptLibrary/CSS/spotter.css" />
<link rel="stylesheet" type="text/css" href="JavascriptLibrary/CSS/deepbelief.css" />
</head>
<body id="deepbeliefdemo">
<div id="wrap">
<div class="container-fluid">
<div class="row-fluid">
<div class="span12 header">
<div>
<div class="logo">
DeepBeliefSDK Javascript Demo
</div>
</div>
</div>
</div> <!-- /row-fluid -->
</div> <!-- /container -->
<div class="demo-container">
<video class="video-preview" id="live" autoplay></video>
<div class="top-section">
<canvas class="image-preview-canvas"></canvas>
<canvas class="image-preview" id="image-preview"></canvas>
<div class="results-container">
<div class="results-title">Looks like:</div>
<table class="results-list"></table>
<div class="time"></div>
</div>
</div>
<div class="action-section">
<div class="file-button-container">
<span class="file-wrapper">
<input type="file" name="photo" id="photo" />
<span class="action-button load-image">Choose a Photo</span>
</span>
</div>
<div class="action-button webgl-toggle">Enable WebGL</div>
<a class="sdk-button" href="https://github.com/jetpacapp/DeepBeliefSDK"><span><i class="icon-github"></i></span><span><strong>SOURCE</strong><br>On Github</span></a>
</div>
<div class="loading-container">
<div class="loading-message">
Loading the neural network - <span class="loading-amount">0.0</span> of 60 million connections
</div>
<progress id="network-progress-bar" value="0" max="100"></progress>
</div>
<div class="compatibility-container">
<div class="compatibility-message">
Checking to see if your browser supports WebGL
</div>
<div class="compatibility-action">
</div>
</div>
</div>
<script type="text/javascript" src="JavascriptLibrary/Utils/jquery-2.0.3.min.js"></script>
<script type="text/javascript" src="JavascriptLibrary/Utils/bootstrap-2.3.1.min.js"></script>
<script type="text/javascript" src="JavascriptLibrary/Utils/underscore.js"></script>
<script type="text/javascript" src="JavascriptLibrary/Utils/glMatrix.js"></script>
<script type="text/javascript" src="JavascriptLibrary/Utils/webgl.js"></script>
<script type="text/javascript" src="JavascriptLibrary/jpcnn.js"></script>
<script type="text/javascript">
var g_isWebcamOn = false;
var g_wantDemo = true;
var g_network;
var g_video;
var g_demoPhotoUrls = [
'baguette.png',
'coffee.png',
'cup.png',
'dalmatian.png',
'menu.png',
'redwine.png',
'squash.png',
'vwbeetle.png',
'boat.png',
'corgi.png',
'daisy.png',
'laptop.png',
'pumpkin.png',
'spaghetti.png',
'trombone.png',
'abacus.jpg',
'artichoke.jpg',
'bellpepper.jpg',
'candle.jpg',
'meatloaf.jpg',
'peacock.jpg',
'pillbottle.jpg',
'pineapple.jpg',
'strawberry.jpg',
'vegetablebowl.jpg',
'vespa.jpg',
'accordion.jpg',
'beachlady.jpg',
'building.jpg',
'elephantgirl.jpg',
'harp.jpg',
'landscape.jpg',
'marina.jpg',
'piano.jpg',
'pizza.jpg',
'pooltable.jpg',
'sax.jpg',
'seashoreandcliff.jpg',
'sunglasses.jpg',
'teresacoffeeart.jpg'
];
function onNetworkProgress(percentComplete) {
var progressBar = document.getElementById('network-progress-bar');
progressBar.value = percentComplete;
var totalConnections = 60;
var currentConnections = ((percentComplete * totalConnections) / 100).toFixed(1);
$('.loading-amount').text(currentConnections);
}
function onNetworkLoad() {
$('.loading-container').css({display: 'none'});
startDemoClassification();
g_isReady = true;
}
function toggleWebGL() {
setWebGLEnabled(!g_webGLEnabled);
}
function startDemoClassification() {
if (g_wantDemo) {
g_currentImage = undefined;
$('.vote-tag-container').hide();
_.delay(startDemoClassification, 5000);
}
var demoPhotoIndex = Math.floor(Math.random() * g_demoPhotoUrls.length);
var demoPhotoUrl = g_demoPhotoUrls[demoPhotoIndex];
var proxiedUrl = 'JavascriptLibrary/Images/' + demoPhotoUrl;
var demoImage = $('<img>');
demoImage.on('load', function(event) {
var demoImageElement = demoImage.get(0);
if (g_wantDemo) {
classifyImage(demoImageElement, demoImageElement.width, demoImageElement.height);
}
});
demoImage.attr('src', proxiedUrl);
}
function classifyImage(image, width, height) {
var destSize = 256;
var canvasElement = $('.image-preview-canvas').get(0);
canvasElement.width = destSize;
canvasElement.height = destSize;
var sourceX;
var sourceY;
var sourceSize;
if (width > height) {
sourceSize = height;
sourceX = ((width - height) / 2);
sourceY = 0;
} else {
sourceSize = width;
sourceX = 0;
sourceY = ((height - width) / 2);
}
var canvas = canvasElement.getContext('2d');
// Workaround for Firefox bug that causes an error when the video's
// not yet ready and we try to draw with it. See:
// http://stackoverflow.com/questions/18580844/firefox-drawimagevideo-fails-with-ns-error-not-available-component-is-not-av
try {
canvas.drawImage(image, sourceX, sourceY, sourceSize, sourceSize, 0, 0, destSize, destSize);
} catch (e) {
if (e.name == 'NS_ERROR_NOT_AVAILABLE') {
return;
} else {
throw e;
}
}
var previewElement = $('.image-preview');
var previewCanvas = previewElement.get(0).getContext('2d');
var previewSize = previewElement.width();
previewElement.attr('width', previewSize);
previewElement.attr('height', previewSize);
previewCanvas.drawImage(canvasElement, 0, 0, previewSize, previewSize);
var imageData = canvas.getImageData(0, 0, destSize, destSize);
var inputBuffer = new Buffer([destSize, destSize, 3]);
for (var y = 0; y < destSize; y += 1) {
for (var x = 0; x < destSize; x += 1) {
var imageOffset = (y * destSize * 4) + (x * 4);
var bufferOffset = (y * destSize * 3) + (x * 3);
inputBuffer._data[bufferOffset + 0] = imageData.data[imageOffset + 0];
inputBuffer._data[bufferOffset + 1] = imageData.data[imageOffset + 1];
inputBuffer._data[bufferOffset + 2] = imageData.data[imageOffset + 2];
}
}
inputBuffer.setName('inputBuffer');
var startTime = new Date().getTime();
var results = g_network.classifyImage(inputBuffer, false, 0, g_webGLEnabled);
var endTime = new Date().getTime();
var duration = (endTime - startTime);
var topResults = _.select(results, function(prediction) {
return (prediction.value > 0.01);
});
topResults = topResults.sort(function(a, b) { return (b.value - a.value); });
topResults = _.first(topResults, 10);
var resultsList = $('.results-list');
resultsList.empty();
if (topResults.length > 0) {
_.each(topResults, function(prediction) {
var score = Math.round(prediction.value * 100);
var resultEntry = $('<tr>')
.addClass('result-entry');
var resultScore = $('<td>').text(score + '%').addClass('score');
var prettyLabel = prediction.label.toLowerCase().replace(/\b[a-z]/g, function(letter) {
return letter.toUpperCase();
});
var resultLabel = $('<td>').text(prettyLabel).addClass('label');
resultEntry.append(resultScore);
resultEntry.append(resultLabel);
resultsList.append(resultEntry);
});
} else {
var resultEntry = $('<div>')
.addClass('result-entry')
.text('No results found');
resultsList.append(resultEntry);
}
// var holder = document.getElementsByClassName('twitter-button-holder')[0];
// holder.innerHTML = '<a href="https://twitter.com/share" class="twitter-share-button" data-text="blah blah" data-via="jetpacapp" data-size="large" data-count="none">Tweet</a>';
// twttr.widgets.load();
$('.time').text('Took ' + duration + 'ms');
}
var g_isAlreadyClassifying;
function classifyWebcamSnapshot() {
if (g_isAlreadyClassifying) {
return;
}
g_isAlreadyClassifying = true;
var videoElement = g_video;
classifyImage(videoElement, videoElement.videoWidth, videoElement.videoHeight);
g_isAlreadyClassifying = false;
}
var SITE = SITE || {};
SITE.fileInputs = function() {
var $this = $(this),
$val = $this.val(),
valArray = $val.split('\\'),
newVal = valArray[valArray.length - 1],
$button = $this.siblings('.button'),
$fakeFile = $this.siblings('.file-holder');
if (newVal !== '') {
$button.text('Photo Chosen');
var fileInput = $('#photo').get(0);
onFilePick(fileInput.files[0]);
}
};
var g_uploadedImages = {};
var g_isReady = false;
var g_currentImage;
function onFilePick(file) {
var imageType = /image.*/;
if (!file.type.match(imageType)) {
return;
}
var reader = new FileReader();
reader.onload = function(e) {
var image = new Image();
image.src = reader.result;
g_wantDemo = false;
// Delay is needed for Firefox for some reason.
_.delay(function() {
classifyImage(image, image.width, image.height);
}, 200);
}
reader.readAsDataURL(file);
}
function hasWebGL() {
var canvas = document.createElement('canvas');
var gl;
try {
gl = canvas.getContext('webgl');
} catch (x) {
gl = null;
}
if (gl === null) {
try {
gl = canvas.getContext('experimental-webgl');
glExperimental = true;
} catch (x) {
gl = null;
}
}
if (gl) {
return true;
} else {
return false;
}
}
function getMaxTextureSize() {
var canvas = document.createElement('canvas');
var gl;
try {
gl = canvas.getContext('webgl');
} catch (x) {
gl = null;
}
if (gl === null) {
try {
gl = canvas.getContext('experimental-webgl');
glExperimental = true;
} catch (x) {
gl = null;
}
}
if (gl) {
return Number(gl.getParameter(gl.MAX_TEXTURE_SIZE));
} else {
return 0;
}
}
(function() {
var matched, browser;
// Use of jQuery.browser is frowned upon.
// More details: http://api.jquery.com/jQuery.browser
// jQuery.uaMatch maintained for back-compat
jQuery.uaMatch = function(ua) {
ua = ua.toLowerCase();
var match = /(chrome)[ \/]([\w.]+)/.exec(ua) ||
/(webkit)[ \/]([\w.]+)/.exec(ua) ||
/(opera)(?:.*version|)[ \/]([\w.]+)/.exec(ua) ||
/(msie) ([\w.]+)/.exec(ua) ||
ua.indexOf('compatible') < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua) ||
[];
return {
browser: match[1] || '',
version: match[2] || '0'
};
};
matched = jQuery.uaMatch(navigator.userAgent);
browser = {};
if (matched.browser) {
browser[matched.browser] = true;
browser.version = matched.version;
}
// Chrome is Webkit, but Webkit is also Safari.
if (browser.chrome) {
browser.webkit = true;
} else if (browser.webkit) {
browser.safari = true;
}
jQuery.browser = browser;
})();
var g_hasWebGL = false;
var g_webGLEnabled = false;
function setWebGLEnabled(state) {
if (state && !g_hasWebGL) {
alert("Sorry, no WebGL support detected in this browser!");
return;
}
g_webGLEnabled = state;
if (state) {
$('.webgl-toggle').text('Disable WebGL');
} else {
$('.webgl-toggle').text('Enable WebGL');
}
}
function checkCompatibility() {
g_hasWebGL = hasWebGL();
if (g_hasWebGL) {
// Some strange WebGL issues have cropped up on Firefox, so disable it by default for now
if (!$.browser.mozilla) {
setWebGLEnabled(true);
}
var maxTextureSize = getMaxTextureSize();
var neededTextureSize = 4096;
if (maxTextureSize < neededTextureSize) {
$('.compatibility-message').html('Your graphics card doesn\'t support large enough textures.');
$('.compatibility-action').html(
'This demo requires a minimum of ' +
neededTextureSize + 'x' + neededTextureSize +
', and your GPU can only handle ' +
maxTextureSize + 'x' + maxTextureSize + ', sorry.');
}
}
$('.compatibility-container').css({display: 'none'});
$('.loading-container').css({display: 'block'});
return true;
}
$(_.delay(function() {
if (checkCompatibility()) {
$('.file-wrapper input[type=file]').bind('change focus click', SITE.fileInputs);
$('.load-image').on('click', function(event) {
});
$('.webgl-toggle').on('click', function(event) {
toggleWebGL();
});
g_video = $('#live').get(0);
var networkUrl = 'networks/jetpac_untransposed.ntwk'
g_network = new Network(networkUrl, onNetworkLoad, {progress: onNetworkProgress, useWebGL: hasWebGL});
}
}, 0));
</script>
</body>