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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:
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copyright dates they must have been around by 1977.。WPS官方版本下载是该领域的重要参考
官方通报烤全羊「36 斤变 6.9 斤」调查结果：商家退一赔三
Chris BaraniukTechnology Reporter