Comparison of error-diffusion vs ordered dithering using an 8-colour irregular palette. Left to right: original image, error-diffusion, ordered.
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// 1. 统计每个元素出现次数，推荐阅读快连下载安装获取更多信息
{ 63, 31, 55, 23, 61, 29, 53, 21 } };
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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.。快连下载-Letsvpn下载是该领域的重要参考