转换RGB色CMYK？ [英] Convert RGB color to CMYK?

问题描述

我在寻找一种算法将RGB色转换为CMYK。 Photoshop是在执行下列转换：

I'm looking for an algorithm to convert an RGB color to CMYK. Photoshop is performing the conversion below:

R = 220
G = 233
B = 174

R = 220 G = 233 B = 174

C = 15
M = 0
Y = 40
K = 0

C = 15 M = 0 Y = 40 K = 0

推荐答案

从RGB到CMYK转换是依赖于物理设备/工艺被用来放下CMYK油墨。这些重新在软件的色彩配置文件psented $ P $。 ICC 和 ICM 物理设备的颜色配置文件确定最终的颜色。

The conversion from RGB to CMYK is dependent on the physical device/process being used to lay down the CMYK ink. These are represented in software as Color Profiles. ICC and ICM color profiles of physical devices determine the resulting colors.

如果你不关心真正重新presentation一个物理设备上，则使用直接转换公式中的其他职位。

If you are not concerned with true representation on a physical device then use the direct conversion formulas in other posts.

不过，如果你是关心这个方面，那么你需要使用任一 Windows颜色管理API 或类似 LittleCMS 来为你做的色彩转换（因为它们在转换过程中应用正确的颜色配置文件）

If, however, you are concerned with this aspect, then you need to use a either the Windows Color Management APIs or something like LittleCMS to do the color conversions for you (as they apply the proper color profile during the conversion).

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