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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:
(四)其他由省级以上公安机关会同电信等主管部门认定的,可能被大量用于网络违法犯罪的设备、软件、工具、服务。