Билл Клинтон. Фото: Алексей Витвицкий / РИА Новости
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 :
，详情可参考51吃瓜
Where we're coming from，这一点在同城约会中也有详细论述
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