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Changed everything over to work via web RTC realtime webcam

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commit dc1a135f2685a6528985bddc0ac2d45c74f4e863 1 parent 30ecb8d
@wesbos authored
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BIN  .DS_Store
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9 .gitignore
@@ -0,0 +1,9 @@
+# OS generated files #
+######################
+.DS_Store*
+ehthumbs.db
+Icon?
+Thumbs.db
+
+/old/
+
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0  i/glasses.png 100644 → 100755
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0  i/glasses.psd 100644 → 100755
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29 index.html
@@ -5,22 +5,33 @@
</head>
<body>
<div class="wrapper">
- <h1>HTML5 GLASSES</h1>
- <p>Created by <a href="http://twitter.com/wesbos" target="_blank">Wes Bos</a>. See full details <a href="html5-video-face-detection-canvas-javascript">here.</a></p>
<!-- Our Main Video Element -->
- <video height="426" width="640" controls="false">
- <source src="videos/wes4.ogg" />
- <source src="videos/wes4.mp4" />
- </video>
+ <video height="426" width="640" controls autoplay></video>
<!-- Out Canvas Element for output -->
- <canvas id="output" height="426" width="640" ></canvas>
+ <canvas id="output" height="426" width="515" ></canvas>
+
+ <div class="colours" style="display:none;">
+ <div id="red">
+ <input type="range" min=0 max=255 value=190 class="min">
+ <input type="range" min=0 max=255 value=240 class="max">
+ </div>
+ <div id="green">
+ <input type="range" min=0 max=255 value=0 class="min">
+ <input type="range" min=0 max=255 value=120 class="max">
+ </div>
+ <div id="blue">
+ <input type="range" min=0 max=255 value=90 class="min">
+ <input type="range" min=0 max=255 value=190 class="max">
+ </div>
+ </div>
- <!-- div to track progress -->
- <div id="elapsed_time">Press play for HTML5 Glasses!</div>
</div>
+
+<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="text/javascript" src="scripts/ccv.js"></script>
<script type="text/javascript" src="scripts/face.js"></script>
<script type="text/javascript" src="scripts/scripts.js"></script>
+<script type="text/javascript" src="scripts/stackblur.js"></script>
</body>
</html>
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19 readme.md 100644 → 100755
@@ -1,7 +1,24 @@
This demo uses the CCV Javascript Face Detection Library.
+-------------------------------------------------------------------------------
+To start run App.start() in your console.
+
+You can also pass it a few different effects:
+* App.start('glasses'); // Goofy Glasses example
+* App.start('green'); // Green Screen effect (there is a hidden max and min sliders you can use to adjust the thresholds)
+* App.start('hipster'); // simple pixel manipulation example
+* App.start('blur'); // blur example
+
+Requires a browser that supports getUserMedia. This demo will be updated with opera support soon but currently uses chrome canary
+
+Start Google Chrome Canary with open -a Google\ Chrome\ Canary --args --enable-media-stream OR enable the flag in about:flags
+
+--------------------------------------------------------------------------------
+
+Original links with a stored local video:
+
Demo Video: http://www.youtube.com/watch?v=YYES9Qd094o&hd=1
Working Demo : http://wesbos.com/demos/html5-face-detection/
-Tutorial : http://www.wesbos.com/html5-video-face-detection-canvas-javascript
+Tutorial : http://www.wesbos.com/html5-video-face-detection-canvas-javascript
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0  scripts.js 100644 → 100755
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156 scripts/scripts.js 100644 → 100755
@@ -1,40 +1,124 @@
-// Setup Video
-var video = document.querySelector('video'),
- time_dump = document.getElementById("elapsed_time"),
- glasses = new Image(),
- canvas = document.getElementById("output"),
- ctx = canvas.getContext("2d");
- glasses.src = "i/glasses.png";
-
-function html5glasses() {
- // Start the clock
- var elapsed_time = (new Date()).getTime();
-
- // Draw the video to canvas
- ctx.drawImage(video, 0, 0, video.width, video.height, 0, 0, canvas.width, canvas.height);
-
- // use the face detection library to find the face
- var comp = ccv.detect_objects({ "canvas" : (ccv.pre(canvas)),
- "cascade" : cascade,
- "interval" : 5,
- "min_neighbors" : 1 });
-
- // Stop the clock
- time_dump.innerHTML = "Process time : " + ((new Date()).getTime() - elapsed_time).toString() + "ms";
-
- // Draw glasses on everyone!
- for (var i = 0; i < comp.length; i++) {
- ctx.drawImage(glasses, comp[i].x, comp[i].y,comp[i].width, comp[i].height);
+/** Start Google Chrome Canary with open -a Google\ Chrome\ Canary --args --enable-media-stream OR enable the flag in about:flags **/
+
+var App = {
+
+ // Run if we do have camera support
+ successCallback : function(stream) {
+ console.log('yeah! camera support!');
+ App.video.src = window.webkitURL ? window.webkitURL.createObjectURL(stream) : stream;
+ },
+
+ // run if we dont have camera support
+ errorCallback : function(error) {
+ alert('An error occurred while trying to get camera access (Your browser probably doesnt support getUserMedia() ): ' + error.code);
+ return;
+ },
+
+
+ drawToCanvas : function(effect) {
+ var video = App.video,
+ ctx = App.ctx,
+ canvas = App.canvas,
+ i;
+
+ ctx.drawImage(video, 0, 0, 520,426);
+
+ App.pixels = ctx.getImageData(0,0,canvas.width,canvas.height);
+
+ // Hipstergram!
+
+ if (effect === 'hipster') {
+
+ for (i = 0; i < App.pixels.data.length; i=i+4) {
+ App.pixels.data[i + 0] = App.pixels.data[i + 0] * 3 ;
+ App.pixels.data[i + 1] = App.pixels.data[i + 1] * 2;
+ App.pixels.data[i + 2] = App.pixels.data[i + 2] - 10;
+ }
+
+ ctx.putImageData(App.pixels,0,0);
+
+ }
+
+ // Blur!
+
+ else if (effect === 'blur') {
+ stackBlurCanvasRGBA('output',0,0,515,426,20);
+ }
+
+ // Green Screen
+
+ else if (effect === 'greenscreen') {
+
+ /* Selectors */
+ var rmin = $('#red input.min').val();
+ var gmin = $('#green input.min').val();
+ var bmin = $('#blue input.min').val();
+ var rmax = $('#red input.max').val();
+ var gmax = $('#green input.max').val();
+ var bmax = $('#blue input.max').val();
+
+ // console.log(rmin,gmin,bmin,rmax,gmax,bmax);
+
+ for (i = 0; i < App.pixels.data.length; i=i+4) {
+ red = App.pixels.data[i + 0];
+ green = App.pixels.data[i + 1];
+ blue = App.pixels.data[i + 2];
+ alpha = App.pixels.data[i + 3];
+
+ if (red >= rmin && green >= gmin && blue >= bmin && red <= rmax && green <= gmax && blue <= bmax ) {
+ App.pixels.data[i + 3] = 0;
+ }
+ }
+
+ ctx.putImageData(App.pixels,0,0);
+
+ }
+ else if(effect === 'glasses') {
+ var comp = ccv.detect_objects({ "canvas" : (App.canvas),
+ "cascade" : cascade,
+ "interval" : 5,
+ "min_neighbors" : 1 });
+
+ // Draw glasses on everyone!
+ for (i = 0; i < comp.length; i++) {
+ ctx.drawImage(App.glasses, comp[i].x, comp[i].y,comp[i].width, comp[i].height);
+ }
+
+ }
+
+
+ },
+
+ start : function(effect) {
+ if(App.playing) { clearInterval(App.playing); }
+ App.playing = setInterval(function() {
+ App.drawToCanvas(effect);
+ },50);
}
-}
+};
+
+App.init = function() {
+ // Prep the document
+ App.video = document.querySelector('video');
+
+ App.glasses = new Image();
+ App.glasses.src = "i/glasses.png";
+
+ App.canvas = document.querySelector("#output");
+ App.ctx = this.canvas.getContext("2d");
+
+
+ // Finally Check if we can run this puppy and go!
+ if (navigator.webkitGetUserMedia) {
+ navigator.webkitGetUserMedia('video', App.successCallback, App.errorCallback);
+ }
+
+ App.start();
-/* Events */
+};
-video.addEventListener('play', function() {
- vidInterval = setInterval(html5glasses,200);
-});
-video.addEventListener('ended', function() {
- clearInterval(vidInterval);
- time_dump.innerHTML = "finished";
-});
+document.addEventListener("DOMContentLoaded", function() {
+ console.log('ready!');
+ App.init();
+}, false);
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611 scripts/stackblur.js
@@ -0,0 +1,611 @@
+/*
+
+StackBlur - a fast almost Gaussian Blur For Canvas
+
+Version: 0.5
+Author: Mario Klingemann
+Contact: mario@quasimondo.com
+Website: http://www.quasimondo.com/StackBlurForCanvas
+Twitter: @quasimondo
+
+In case you find this class useful - especially in commercial projects -
+I am not totally unhappy for a small donation to my PayPal account
+mario@quasimondo.de
+
+Or support me on flattr:
+https://flattr.com/thing/72791/StackBlur-a-fast-almost-Gaussian-Blur-Effect-for-CanvasJavascript
+
+Copyright (c) 2010 Mario Klingemann
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+var mul_table = [
+ 512,512,456,512,328,456,335,512,405,328,271,456,388,335,292,512,
+ 454,405,364,328,298,271,496,456,420,388,360,335,312,292,273,512,
+ 482,454,428,405,383,364,345,328,312,298,284,271,259,496,475,456,
+ 437,420,404,388,374,360,347,335,323,312,302,292,282,273,265,512,
+ 497,482,468,454,441,428,417,405,394,383,373,364,354,345,337,328,
+ 320,312,305,298,291,284,278,271,265,259,507,496,485,475,465,456,
+ 446,437,428,420,412,404,396,388,381,374,367,360,354,347,341,335,
+ 329,323,318,312,307,302,297,292,287,282,278,273,269,265,261,512,
+ 505,497,489,482,475,468,461,454,447,441,435,428,422,417,411,405,
+ 399,394,389,383,378,373,368,364,359,354,350,345,341,337,332,328,
+ 324,320,316,312,309,305,301,298,294,291,287,284,281,278,274,271,
+ 268,265,262,259,257,507,501,496,491,485,480,475,470,465,460,456,
+ 451,446,442,437,433,428,424,420,416,412,408,404,400,396,392,388,
+ 385,381,377,374,370,367,363,360,357,354,350,347,344,341,338,335,
+ 332,329,326,323,320,318,315,312,310,307,304,302,299,297,294,292,
+ 289,287,285,282,280,278,275,273,271,269,267,265,263,261,259];
+
+
+var shg_table = [
+ 9, 11, 12, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17,
+ 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 19,
+ 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 21,
+ 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+ 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22,
+ 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
+ 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23,
+ 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
+ 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
+ 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
+ 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+ 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+ 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+ 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+ 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24 ];
+
+function stackBlurImage( imageID, canvasID, radius, blurAlphaChannel )
+{
+
+ var img = document.getElementById( imageID );
+ var w = img.naturalWidth;
+ var h = img.naturalHeight;
+
+ var canvas = document.getElementById( canvasID );
+
+ canvas.style.width = w + "px";
+ canvas.style.height = h + "px";
+ canvas.width = w;
+ canvas.height = h;
+
+ var context = canvas.getContext("2d");
+ context.clearRect( 0, 0, w, h );
+ context.drawImage( img, 0, 0 );
+
+ if ( isNaN(radius) || radius < 1 ) return;
+
+ if ( blurAlphaChannel )
+ stackBlurCanvasRGBA( canvasID, 0, 0, w, h, radius );
+ else
+ stackBlurCanvasRGB( canvasID, 0, 0, w, h, radius );
+}
+
+
+function stackBlurCanvasRGBA( id, top_x, top_y, width, height, radius )
+{
+ if ( isNaN(radius) || radius < 1 ) return;
+ radius |= 0;
+
+ var canvas = document.getElementById( id );
+ var context = canvas.getContext("2d");
+ var imageData;
+
+ try {
+ try {
+ imageData = context.getImageData( top_x, top_y, width, height );
+ } catch(e) {
+
+ // NOTE: this part is supposedly only needed if you want to work with local files
+ // so it might be okay to remove the whole try/catch block and just use
+ // imageData = context.getImageData( top_x, top_y, width, height );
+ try {
+ netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");
+ imageData = context.getImageData( top_x, top_y, width, height );
+ } catch(e) {
+ alert("Cannot access local image");
+ throw new Error("unable to access local image data: " + e);
+ return;
+ }
+ }
+ } catch(e) {
+ alert("Cannot access image");
+ throw new Error("unable to access image data: " + e);
+ }
+
+ var pixels = imageData.data;
+
+ var x, y, i, p, yp, yi, yw, r_sum, g_sum, b_sum, a_sum,
+ r_out_sum, g_out_sum, b_out_sum, a_out_sum,
+ r_in_sum, g_in_sum, b_in_sum, a_in_sum,
+ pr, pg, pb, pa, rbs;
+
+ var div = radius + radius + 1;
+ var w4 = width << 2;
+ var widthMinus1 = width - 1;
+ var heightMinus1 = height - 1;
+ var radiusPlus1 = radius + 1;
+ var sumFactor = radiusPlus1 * ( radiusPlus1 + 1 ) / 2;
+
+ var stackStart = new BlurStack();
+ var stack = stackStart;
+ for ( i = 1; i < div; i++ )
+ {
+ stack = stack.next = new BlurStack();
+ if ( i == radiusPlus1 ) var stackEnd = stack;
+ }
+ stack.next = stackStart;
+ var stackIn = null;
+ var stackOut = null;
+
+ yw = yi = 0;
+
+ var mul_sum = mul_table[radius];
+ var shg_sum = shg_table[radius];
+
+ for ( y = 0; y < height; y++ )
+ {
+ r_in_sum = g_in_sum = b_in_sum = a_in_sum = r_sum = g_sum = b_sum = a_sum = 0;
+
+ r_out_sum = radiusPlus1 * ( pr = pixels[yi] );
+ g_out_sum = radiusPlus1 * ( pg = pixels[yi+1] );
+ b_out_sum = radiusPlus1 * ( pb = pixels[yi+2] );
+ a_out_sum = radiusPlus1 * ( pa = pixels[yi+3] );
+
+ r_sum += sumFactor * pr;
+ g_sum += sumFactor * pg;
+ b_sum += sumFactor * pb;
+ a_sum += sumFactor * pa;
+
+ stack = stackStart;
+
+ for( i = 0; i < radiusPlus1; i++ )
+ {
+ stack.r = pr;
+ stack.g = pg;
+ stack.b = pb;
+ stack.a = pa;
+ stack = stack.next;
+ }
+
+ for( i = 1; i < radiusPlus1; i++ )
+ {
+ p = yi + (( widthMinus1 < i ? widthMinus1 : i ) << 2 );
+ r_sum += ( stack.r = ( pr = pixels[p])) * ( rbs = radiusPlus1 - i );
+ g_sum += ( stack.g = ( pg = pixels[p+1])) * rbs;
+ b_sum += ( stack.b = ( pb = pixels[p+2])) * rbs;
+ a_sum += ( stack.a = ( pa = pixels[p+3])) * rbs;
+
+ r_in_sum += pr;
+ g_in_sum += pg;
+ b_in_sum += pb;
+ a_in_sum += pa;
+
+ stack = stack.next;
+ }
+
+
+ stackIn = stackStart;
+ stackOut = stackEnd;
+ for ( x = 0; x < width; x++ )
+ {
+ pixels[yi+3] = pa = (a_sum * mul_sum) >> shg_sum;
+ if ( pa != 0 )
+ {
+ pa = 255 / pa;
+ pixels[yi] = ((r_sum * mul_sum) >> shg_sum) * pa;
+ pixels[yi+1] = ((g_sum * mul_sum) >> shg_sum) * pa;
+ pixels[yi+2] = ((b_sum * mul_sum) >> shg_sum) * pa;
+ } else {
+ pixels[yi] = pixels[yi+1] = pixels[yi+2] = 0;
+ }
+
+ r_sum -= r_out_sum;
+ g_sum -= g_out_sum;
+ b_sum -= b_out_sum;
+ a_sum -= a_out_sum;
+
+ r_out_sum -= stackIn.r;
+ g_out_sum -= stackIn.g;
+ b_out_sum -= stackIn.b;
+ a_out_sum -= stackIn.a;
+
+ p = ( yw + ( ( p = x + radius + 1 ) < widthMinus1 ? p : widthMinus1 ) ) << 2;
+
+ r_in_sum += ( stackIn.r = pixels[p]);
+ g_in_sum += ( stackIn.g = pixels[p+1]);
+ b_in_sum += ( stackIn.b = pixels[p+2]);
+ a_in_sum += ( stackIn.a = pixels[p+3]);
+
+ r_sum += r_in_sum;
+ g_sum += g_in_sum;
+ b_sum += b_in_sum;
+ a_sum += a_in_sum;
+
+ stackIn = stackIn.next;
+
+ r_out_sum += ( pr = stackOut.r );
+ g_out_sum += ( pg = stackOut.g );
+ b_out_sum += ( pb = stackOut.b );
+ a_out_sum += ( pa = stackOut.a );
+
+ r_in_sum -= pr;
+ g_in_sum -= pg;
+ b_in_sum -= pb;
+ a_in_sum -= pa;
+
+ stackOut = stackOut.next;
+
+ yi += 4;
+ }
+ yw += width;
+ }
+
+
+ for ( x = 0; x < width; x++ )
+ {
+ g_in_sum = b_in_sum = a_in_sum = r_in_sum = g_sum = b_sum = a_sum = r_sum = 0;
+
+ yi = x << 2;
+ r_out_sum = radiusPlus1 * ( pr = pixels[yi]);
+ g_out_sum = radiusPlus1 * ( pg = pixels[yi+1]);
+ b_out_sum = radiusPlus1 * ( pb = pixels[yi+2]);
+ a_out_sum = radiusPlus1 * ( pa = pixels[yi+3]);
+
+ r_sum += sumFactor * pr;
+ g_sum += sumFactor * pg;
+ b_sum += sumFactor * pb;
+ a_sum += sumFactor * pa;
+
+ stack = stackStart;
+
+ for( i = 0; i < radiusPlus1; i++ )
+ {
+ stack.r = pr;
+ stack.g = pg;
+ stack.b = pb;
+ stack.a = pa;
+ stack = stack.next;
+ }
+
+ yp = width;
+
+ for( i = 1; i <= radius; i++ )
+ {
+ yi = ( yp + x ) << 2;
+
+ r_sum += ( stack.r = ( pr = pixels[yi])) * ( rbs = radiusPlus1 - i );
+ g_sum += ( stack.g = ( pg = pixels[yi+1])) * rbs;
+ b_sum += ( stack.b = ( pb = pixels[yi+2])) * rbs;
+ a_sum += ( stack.a = ( pa = pixels[yi+3])) * rbs;
+
+ r_in_sum += pr;
+ g_in_sum += pg;
+ b_in_sum += pb;
+ a_in_sum += pa;
+
+ stack = stack.next;
+
+ if( i < heightMinus1 )
+ {
+ yp += width;
+ }
+ }
+
+ yi = x;
+ stackIn = stackStart;
+ stackOut = stackEnd;
+ for ( y = 0; y < height; y++ )
+ {
+ p = yi << 2;
+ pixels[p+3] = pa = (a_sum * mul_sum) >> shg_sum;
+ if ( pa > 0 )
+ {
+ pa = 255 / pa;
+ pixels[p] = ((r_sum * mul_sum) >> shg_sum ) * pa;
+ pixels[p+1] = ((g_sum * mul_sum) >> shg_sum ) * pa;
+ pixels[p+2] = ((b_sum * mul_sum) >> shg_sum ) * pa;
+ } else {
+ pixels[p] = pixels[p+1] = pixels[p+2] = 0;
+ }
+
+ r_sum -= r_out_sum;
+ g_sum -= g_out_sum;
+ b_sum -= b_out_sum;
+ a_sum -= a_out_sum;
+
+ r_out_sum -= stackIn.r;
+ g_out_sum -= stackIn.g;
+ b_out_sum -= stackIn.b;
+ a_out_sum -= stackIn.a;
+
+ p = ( x + (( ( p = y + radiusPlus1) < heightMinus1 ? p : heightMinus1 ) * width )) << 2;
+
+ r_sum += ( r_in_sum += ( stackIn.r = pixels[p]));
+ g_sum += ( g_in_sum += ( stackIn.g = pixels[p+1]));
+ b_sum += ( b_in_sum += ( stackIn.b = pixels[p+2]));
+ a_sum += ( a_in_sum += ( stackIn.a = pixels[p+3]));
+
+ stackIn = stackIn.next;
+
+ r_out_sum += ( pr = stackOut.r );
+ g_out_sum += ( pg = stackOut.g );
+ b_out_sum += ( pb = stackOut.b );
+ a_out_sum += ( pa = stackOut.a );
+
+ r_in_sum -= pr;
+ g_in_sum -= pg;
+ b_in_sum -= pb;
+ a_in_sum -= pa;
+
+ stackOut = stackOut.next;
+
+ yi += width;
+ }
+ }
+
+ context.putImageData( imageData, top_x, top_y );
+
+}
+
+
+function stackBlurCanvasRGB( id, top_x, top_y, width, height, radius )
+{
+ if ( isNaN(radius) || radius < 1 ) return;
+ radius |= 0;
+
+ var canvas = document.getElementById( id );
+ var context = canvas.getContext("2d");
+ var imageData;
+
+ try {
+ try {
+ imageData = context.getImageData( top_x, top_y, width, height );
+ } catch(e) {
+
+ // NOTE: this part is supposedly only needed if you want to work with local files
+ // so it might be okay to remove the whole try/catch block and just use
+ // imageData = context.getImageData( top_x, top_y, width, height );
+ try {
+ netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");
+ imageData = context.getImageData( top_x, top_y, width, height );
+ } catch(e) {
+ alert("Cannot access local image");
+ throw new Error("unable to access local image data: " + e);
+ return;
+ }
+ }
+ } catch(e) {
+ alert("Cannot access image");
+ throw new Error("unable to access image data: " + e);
+ }
+
+ var pixels = imageData.data;
+
+ var x, y, i, p, yp, yi, yw, r_sum, g_sum, b_sum,
+ r_out_sum, g_out_sum, b_out_sum,
+ r_in_sum, g_in_sum, b_in_sum,
+ pr, pg, pb, rbs;
+
+ var div = radius + radius + 1;
+ var w4 = width << 2;
+ var widthMinus1 = width - 1;
+ var heightMinus1 = height - 1;
+ var radiusPlus1 = radius + 1;
+ var sumFactor = radiusPlus1 * ( radiusPlus1 + 1 ) / 2;
+
+ var stackStart = new BlurStack();
+ var stack = stackStart;
+ for ( i = 1; i < div; i++ )
+ {
+ stack = stack.next = new BlurStack();
+ if ( i == radiusPlus1 ) var stackEnd = stack;
+ }
+ stack.next = stackStart;
+ var stackIn = null;
+ var stackOut = null;
+
+ yw = yi = 0;
+
+ var mul_sum = mul_table[radius];
+ var shg_sum = shg_table[radius];
+
+ for ( y = 0; y < height; y++ )
+ {
+ r_in_sum = g_in_sum = b_in_sum = r_sum = g_sum = b_sum = 0;
+
+ r_out_sum = radiusPlus1 * ( pr = pixels[yi] );
+ g_out_sum = radiusPlus1 * ( pg = pixels[yi+1] );
+ b_out_sum = radiusPlus1 * ( pb = pixels[yi+2] );
+
+ r_sum += sumFactor * pr;
+ g_sum += sumFactor * pg;
+ b_sum += sumFactor * pb;
+
+ stack = stackStart;
+
+ for( i = 0; i < radiusPlus1; i++ )
+ {
+ stack.r = pr;
+ stack.g = pg;
+ stack.b = pb;
+ stack = stack.next;
+ }
+
+ for( i = 1; i < radiusPlus1; i++ )
+ {
+ p = yi + (( widthMinus1 < i ? widthMinus1 : i ) << 2 );
+ r_sum += ( stack.r = ( pr = pixels[p])) * ( rbs = radiusPlus1 - i );
+ g_sum += ( stack.g = ( pg = pixels[p+1])) * rbs;
+ b_sum += ( stack.b = ( pb = pixels[p+2])) * rbs;
+
+ r_in_sum += pr;
+ g_in_sum += pg;
+ b_in_sum += pb;
+
+ stack = stack.next;
+ }
+
+
+ stackIn = stackStart;
+ stackOut = stackEnd;
+ for ( x = 0; x < width; x++ )
+ {
+ pixels[yi] = (r_sum * mul_sum) >> shg_sum;
+ pixels[yi+1] = (g_sum * mul_sum) >> shg_sum;
+ pixels[yi+2] = (b_sum * mul_sum) >> shg_sum;
+
+ r_sum -= r_out_sum;
+ g_sum -= g_out_sum;
+ b_sum -= b_out_sum;
+
+ r_out_sum -= stackIn.r;
+ g_out_sum -= stackIn.g;
+ b_out_sum -= stackIn.b;
+
+ p = ( yw + ( ( p = x + radius + 1 ) < widthMinus1 ? p : widthMinus1 ) ) << 2;
+
+ r_in_sum += ( stackIn.r = pixels[p]);
+ g_in_sum += ( stackIn.g = pixels[p+1]);
+ b_in_sum += ( stackIn.b = pixels[p+2]);
+
+ r_sum += r_in_sum;
+ g_sum += g_in_sum;
+ b_sum += b_in_sum;
+
+ stackIn = stackIn.next;
+
+ r_out_sum += ( pr = stackOut.r );
+ g_out_sum += ( pg = stackOut.g );
+ b_out_sum += ( pb = stackOut.b );
+
+ r_in_sum -= pr;
+ g_in_sum -= pg;
+ b_in_sum -= pb;
+
+ stackOut = stackOut.next;
+
+ yi += 4;
+ }
+ yw += width;
+ }
+
+
+ for ( x = 0; x < width; x++ )
+ {
+ g_in_sum = b_in_sum = r_in_sum = g_sum = b_sum = r_sum = 0;
+
+ yi = x << 2;
+ r_out_sum = radiusPlus1 * ( pr = pixels[yi]);
+ g_out_sum = radiusPlus1 * ( pg = pixels[yi+1]);
+ b_out_sum = radiusPlus1 * ( pb = pixels[yi+2]);
+
+ r_sum += sumFactor * pr;
+ g_sum += sumFactor * pg;
+ b_sum += sumFactor * pb;
+
+ stack = stackStart;
+
+ for( i = 0; i < radiusPlus1; i++ )
+ {
+ stack.r = pr;
+ stack.g = pg;
+ stack.b = pb;
+ stack = stack.next;
+ }
+
+ yp = width;
+
+ for( i = 1; i <= radius; i++ )
+ {
+ yi = ( yp + x ) << 2;
+
+ r_sum += ( stack.r = ( pr = pixels[yi])) * ( rbs = radiusPlus1 - i );
+ g_sum += ( stack.g = ( pg = pixels[yi+1])) * rbs;
+ b_sum += ( stack.b = ( pb = pixels[yi+2])) * rbs;
+
+ r_in_sum += pr;
+ g_in_sum += pg;
+ b_in_sum += pb;
+
+ stack = stack.next;
+
+ if( i < heightMinus1 )
+ {
+ yp += width;
+ }
+ }
+
+ yi = x;
+ stackIn = stackStart;
+ stackOut = stackEnd;
+ for ( y = 0; y < height; y++ )
+ {
+ p = yi << 2;
+ pixels[p] = (r_sum * mul_sum) >> shg_sum;
+ pixels[p+1] = (g_sum * mul_sum) >> shg_sum;
+ pixels[p+2] = (b_sum * mul_sum) >> shg_sum;
+
+ r_sum -= r_out_sum;
+ g_sum -= g_out_sum;
+ b_sum -= b_out_sum;
+
+ r_out_sum -= stackIn.r;
+ g_out_sum -= stackIn.g;
+ b_out_sum -= stackIn.b;
+
+ p = ( x + (( ( p = y + radiusPlus1) < heightMinus1 ? p : heightMinus1 ) * width )) << 2;
+
+ r_sum += ( r_in_sum += ( stackIn.r = pixels[p]));
+ g_sum += ( g_in_sum += ( stackIn.g = pixels[p+1]));
+ b_sum += ( b_in_sum += ( stackIn.b = pixels[p+2]));
+
+ stackIn = stackIn.next;
+
+ r_out_sum += ( pr = stackOut.r );
+ g_out_sum += ( pg = stackOut.g );
+ b_out_sum += ( pb = stackOut.b );
+
+ r_in_sum -= pr;
+ g_in_sum -= pg;
+ b_in_sum -= pb;
+
+ stackOut = stackOut.next;
+
+ yi += width;
+ }
+ }
+
+ context.putImageData( imageData, top_x, top_y );
+
+}
+
+function BlurStack()
+{
+ this.r = 0;
+ this.g = 0;
+ this.b = 0;
+ this.a = 0;
+ this.next = null;
+}
View
7 style.css 100644 → 100755
@@ -12,7 +12,7 @@ h1 {
}
.wrapper {
- width: 640px;
+ width: 1230px;
margin: 20px auto;
padding: 40px;
background: #ffffff;
@@ -29,4 +29,9 @@ a {
color: #392C44;
border-bottom: 1px solid #ECD018;
text-decoration:none;
+}
+
+
+canvas {
+ background:url(http://www.travelagentcentral.com/files/travelagent/nodes/2011/27632/Hawaii_Generic.jpg);
}
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BIN  videos/.DS_Store
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BIN  videos/wes4.mov
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BIN  videos/wes4.mp4
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BIN  videos/wes4.ogg
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