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.
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07:23, 28 февраля 2026Бывший СССР
const posToTime = new Map(); // 映射：位置 → 到达终点的时间