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1 //print("i: " + i + "j: " + j); | |
2 | |
3 function gaussianBlur() { | |
4 for (var y = 0; y < height; ++y) { | |
5 for (var x = 0; x < width; ++x) { | |
6 var r = 0, g = 0, b = 0, a = 0; | |
7 for (var j = 1 - kernelSize; j < kernelSize; ++j) { | |
8 if (y + j < 0 || y + j >= height) continue; | |
9 for (var i = 1 - kernelSize; i < kernelSize; ++i) { | |
10 if (x + i < 0 || x + i >= width) continue; | |
11 r += squidImageData[4 * ((y + j) * width + (x + i)) + 0] * k
ernel[Math.abs(j)][Math.abs(i)]; | |
12 g += squidImageData[4 * ((y + j) * width + (x + i)) + 1] * k
ernel[Math.abs(j)][Math.abs(i)]; | |
13 b += squidImageData[4 * ((y + j) * width + (x + i)) + 2] * k
ernel[Math.abs(j)][Math.abs(i)]; | |
14 a += squidImageData[4 * ((y + j) * width + (x + i)) + 3] * k
ernel[Math.abs(j)][Math.abs(i)]; | |
15 } | |
16 } | |
17 squidImageData[4 * (y * width + x) + 0] = r / kernelSum; | |
18 squidImageData[4 * (y * width + x) + 1] = g / kernelSum; | |
19 squidImageData[4 * (y * width + x) + 2] = b / kernelSum; | |
20 squidImageData[4 * (y * width + x) + 3] = a / kernelSum; | |
21 } | |
22 } | |
23 return squidImageData; | |
24 } | |
25 gaussianBlur(); | |
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