getImagePixels = function getImagePixels() {
		var w = width;
		var h = height;
		pixels = [];
		var data = image;
		var count = 0;

		for (var i = 0; i < h; i++) {

			for (var j = 0; j < w; j++) {

				var b = (i * w * 4) + j * 4;
				pixels[count++] = data[b];
				pixels[count++] = data[b + 1];
				pixels[count++] = data[b + 2];

			}

		}
	}
Extracts image pixels into byte array "pixels