46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
Filter.prototype.filter_balance = function(pixels = this.pixels(),p = null)
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{
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// / media/filter.color.jpg
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// : balance 0.5 2.4 1.2
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p[0] = parseFloat(p[0]);
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p[1] = p[1] ? parseFloat(p[1]) : parseFloat(p[0]);
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p[2] = p[2] ? parseFloat(p[2]) : parseFloat(p[0]);
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var data = pixels.data;
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// Multiply
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if(p[0] % 1 !== 0 && p[1] % 1 !== 0 && p[2] % 1 !== 0){
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console.log("Multi");
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for (var i = 0; i < data.length; i += 4) {
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data[i] = data[i] * p[0]; // red
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data[i + 1] = data[i + 1] * p[1]; // green
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data[i + 2] = data[i + 2] * p[2]; // blue
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// Clamp
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data[i] = data[i] < 255 ? data[i] : 255;
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data[i + 1] = data[i + 1] < 255 ? data[i + 1] : 255;
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data[i + 2] = data[i + 2] < 255 ? data[i + 2] : 255;
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}
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}
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// Add
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else{
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p[0] = parseInt(p[0]);
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p[1] = p[1] ? parseInt(p[1]) : parseInt(p[0]);
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p[2] = p[2] ? parseInt(p[2]) : parseInt(p[0]);
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for (i = 0; i < data.length; i += 4) {
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data[i] = data[i] + p[0]; // red
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data[i + 1] = data[i + 1] + p[1]; // green
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data[i + 2] = data[i + 2] + p[2]; // blue
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// Clamp
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data[i] = data[i] < 255 ? data[i] : 255;
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data[i + 1] = data[i + 1] < 255 ? data[i + 1] : 255;
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data[i + 2] = data[i + 2] < 255 ? data[i + 2] : 255;
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}
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}
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ronin.canvas.clear();
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ronin.surface.context().putImageData(pixels, 0, 0, 0, 0, pixels.width, pixels.height);
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} |