Another way to look at our threshold matrix is as a kind of probability matrix. Instead of offsetting the input pixel by the value given in the threshold matrix, we can instead use the value to sample from the cumulative probability of possible candidate colours, where each colour is assigned a probability or weight . Each colour’s weight represents it’s proportional contribution to the input colour. Colours with greater weight are then more likely to be picked for a given pixel and vice-versa, such that the local average for a given region should converge to that of the original input value. We can call this the N-candidate approach to palette dithering.
技术支持：陈晓龙 叶伟豪 肖杰
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If you've been online in the past few weeks, I'm sorry. That's a general comment, but it especially goes for if you've seen posts and articles about someone named Clavicular.
export image-lib;
Credit: Paramount Pictures