If we think about this algebraically, what we really want to do is express the input pixel as the weighted sum of palette colours. This is nothing more than a linear combination of palette colours with weights :
Author(s): Shinji Sakane, Tomohiro Takaki。同城约会对此有专业解读
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可以看到警方从多个方向接近枪手原先的射击位置。，更多细节参见搜狗输入法2026
Barycentric Coordinates