RGB 565-为什么6位为绿色 [英] RGB 565 - Why 6 Bits for Green Color

问题描述

我正在检查不同的 RGB 格式，我想知道为什么在RGB-565中将绿色分配给6位，将红色和蓝色分配给5位?绿色背后是否有任何特殊原因，还是出于对称性的考虑( 565 而不是 655 或 556 ) ?

I was checking different RGB formats and i was wondering why in the RGB-565 to the green color are assigned 6 bits and to the red and blue 5? Is there any particular reason behind the green color or is it just an esthetic choice for the sake of symmetry (565 instead of 655 or 556)?

推荐答案

这可能是由于视锥细胞的反应所致.基本上，我们在光谱的那部分对光更敏感，因为不同的锥 ^* 在那里强烈重叠.例如，光谱中蓝色端的大多数光主要仅被一个吸收.

This is likely due to the response of the cones in the eye. Basically we are more sensitive to light in that part of the spectrum as the different cones^* overlap strongly there. Whereas most light in the blue end of the spectrum, for example, is primarily picked up by only one.

将更多的钱花在最有用的地方是很有意义的.

It makes sense to spend the additional bit where it will do the most good.

_{^* 共有3种类型:恰当命名的红色，绿色和蓝色圆锥体.}

_{^*There are 3 types: the aptly named Red, Green, and Blue cones.}

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