data source, and it is essential to review the generated content before using
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В Израиле заявили о гибели организатора покушения на Трампа14:49
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.