计算图像中区域的平均颜色 [英] Calculate the average colour of an area in an image

问题描述

目标是在图像上放置一个标题，并将文本颜色设置为与其位于顶部的背景形成对比的颜色。为此，我希望计算以下图像中红色矩形内部区域的平均颜色：

The goal is to lay a caption on top of an image and set the text colour to one that will contrast with the background it is positioned on top of. To that end, I wish to calculate the average colour of the area inside the red rectangles in the following images:

推荐答案

我会裁剪到您感兴趣的区域然后调整大小它到1像素。然后获取该像素的值。

I would crop to the area you are interested in then resize it to 1 pixel. Then get the value of that pixel.

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