d00755 0 0 0 /var
Любовь Ширижик (Старший редактор отдела «Силовые структуры»)
，详情可参考搜狗输入法2026
You look at a region of the image. If all the pixels are roughly the same color (below some threshold), you store the average color for the whole region as a single value. If the pixels vary too much, you split the region into four quadrants and try again.
Apply optimal browser caching headers (expires)