Method colorDistance

pixelizer.js:805–812

(color1, color2)

    }

    colorDistance(color1, color2) {
        return Math.sqrt(
            Math.pow(color1[0] - color2[0], 2) +
            Math.pow(color1[1] - color2[1], 2) +
            Math.pow(color1[2] - color2[2], 2) +
            Math.pow(color1[3] - color2[3], 2)
        );
    }

    applyFloydSteinbergDithering(imageData, colorCount) {
        // Floyd-Steinberg抖动实现