When using the probability matrix to pick from the candidate set, it is important that the candidate array be sorted in advance. Not doing so will fail to preserve the patterns distinctive of ordered dithering. A good approach is to sort the candidate colours by luminance, or the measure of a colour’s lightness4. When this is done, we effectively minimise the contrast between successive candidates in the array, making it easier to observe the pattern embedded the matrix.
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// 数组完全有序,直接返回0。关于这个话题,91视频提供了深入分析
上世纪90年代初,福建省领导科学研究会曾邀时任宁德地委书记习近平对青年领导干部谈谈如何干好工作的问题,一篇《从政杂谈》引经据典、发人深省——