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/**
 * Gaussian blur filter for fabricjs
 * Example: 
 * obj.filters.push(new fabric.Image.filters.GaussianBlur(6));
 * obj.applyFilters(canvas.renderAll.bind(canvas));
 * 
 * Adapted from <a href="http://www.quasimondo.com/BoxBlurForCanvas">http://www.quasimondo.com/BoxBlurForCanvas</a>
 */

(function() {

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<?php
/* 
 * Google Font Importer
 */
 
$fonts = "https://www.googleapis.com/webfonts/v1/webfonts?key=AIzaSyCpfnm5kVng8hhP_jnAnnTXVP7MEUM89-k";

$fonts = file_get_contents($fonts, 0, null, null);

$fp = fopen('fonts.txt', 'w');

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// http://stackoverflow.com/questions/7279567/how-do-i-pause-a-window-setinterval-in-javascript

function RecurringTimer(callback, delay) {
    var timerId, start, remaining = delay;

    this.pause = function() {
        window.clearTimeout(timerId);
        remaining -= new Date() - start;
    };

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//JS QuickSort

Array.prototype.quickSort = function() {

  var r = this;
  if(this.length <= 1) {
    return this;
  }
  var less = [], greater = [];

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//Merge Sort

Array.prototype.mergeSort = function() {

  var thiz = this;
  if (this.length <= 1) {
    return this;
  }
  //split left and right 
  var left = [], right = [];

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function mergeSort(arr) {
  for (var n = 1; n < 4 ; n++){
    var seg_size = Math.pow(2, n);
    
    for (var seg = 0; seg < Math.ceil(arr.length/seg_size); seg++) {
      var before = arr.slice(0, seg * seg_size);
      var cur = arr.slice(seg * seg_size, (seg+1) * seg_size);
      var after = arr.slice((seg+1) * seg_size);
      
      var left = cur.slice(0, seg_size/2);

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<?php
/**
 * PHP: Determine the dominant color of an image
 * http://www.catswhocode.com/blog/10-super-useful-php-snippets-you-probably-havent-seen
 */

$i = imagecreatefromjpeg("image.jpg");

for ($x=0;$x<imagesx($i);$x++) {
    for ($y=0;$y<imagesy($i);$y++) {

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<?php
// See: http://blog.ircmaxell.com/2013/02/preventing-csrf-attacks.html

// Start a session (which should use cookies over HTTP only).
session_start();

// Create a new CSRF token.
if (! isset($_SESSION['csrf_token'])) {
    $_SESSION['csrf_token'] = base64_encode(openssl_random_pseudo_bytes(32));
}

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function getDominantColor(aImg) {
  let canvas = document.createElement("canvas");
  canvas.height = aImg.height;
  canvas.width = aImg.width;

  let context = canvas.getContext("2d");
  context.drawImage(aImg, 0, 0);

  // keep track of how many times a color appears in the image
  let colorCount = {};

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var getAverageColor = (function(window, document, undefined){
	return function(imageURL, options}){
		options = {
			// image split into blocks of x pixels wide, 1 high
			blocksize: options.blocksize || 5,
			fallbackColor: options.fallbackColor || '#000'
		};

		var img = document.createElement('img'),
			canvas = document.createElement('canvas'),