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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.
二是抓实产业就业帮扶。832个脱贫县均培育形成了优势特色突出、带动力强的主导产业。加强技能培训、就业服务，脱贫人口务工就业规模连续5年稳定在3000万人以上，有劳动力的脱贫家庭至少有1人就业。
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