颜色之间的相似性 [英] Similarity Between Colors

问题描述

我在写一个程序，与图像一起工作，在某种程度上，我需要后化的图像。

I'm writing a program that works with images and at some point I need to posterize the image. This means I need to bin the colors, but I'm having trouble deciding how to tell how close one color is to another.

在RGB中给出一个颜色，我可以使用一个颜色来表示颜色。想想至少有两种方法可以看到它们有多不同：

Given a color in RGB, I can think of at least 2 ways to see how different they are:

1. | r1 - r2 | + | g1-g2 | + | b1-b2 |


2. sqrt（（r1 - r2）^ 2 +（g1 - g2）^ 2 +（b1 - b2）^ 2）

如果我搬到HSV，我可以想出其他方法。

And if I move into HSV, I can think of other ways of doing it.

问，忽略速度，什么是最好的方式告诉如何相似的两种颜色？

So I ask, ignoring speed, what is the best way to tell how similar two colors are? Best meaning most accurate to the human eye.

推荐答案

看看这里

http://en.wikipedia.org/wiki/Color_difference

和

http://en.wikipedia.org/wiki/Euclidean_distance

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