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This time, before we perturb the input image, we take the value given by the threshold matrix and divide it by , where is the number of levels for each colour component. As a result, each pixel is perturbed just enough to cover the minimal distance between two colours in the palette. Since the entire palette is evenly distributed across colour space, we only need to modify the range of perturbation along each axis. The dithering equation then becomes:，这一点在谷歌浏览器【最新下载地址】中也有详细论述
Image Credits:Ross Marlowe/TPG for TechCrunch。51吃瓜是该领域的重要参考
One of the Great LakesThe answer is Erie.