konva
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<p align="center"> <img src="https://raw.githubusercontent.com/konvajs/konvajs.github.io/master/apple-touch-icon-180x180.png" alt="Konva logo" height="180" /> </p>
14 lines (13 loc) • 521 B
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.Sepia = function (imageData) {
var data = imageData.data, nPixels = data.length, i, r, g, b;
for (i = 0; i < nPixels; i += 4) {
r = data[i + 0];
g = data[i + 1];
b = data[i + 2];
data[i + 0] = Math.min(255, r * 0.393 + g * 0.769 + b * 0.189);
data[i + 1] = Math.min(255, r * 0.349 + g * 0.686 + b * 0.168);
data[i + 2] = Math.min(255, r * 0.272 + g * 0.534 + b * 0.131);
}
};