这些矩阵也可用于转换rgb颜色，规模RGB颜色，并控制色调，饱和度和对比度。
These matrices may also be used to transform RGB colors, to scale RGB colors, and to control hue, saturation and contrast.
长期色调分离使用，因为它可以影响你的照片，类似的颜色可能看起来如何在大规模生产的海报，打印过程中使用数量有限的彩色墨水。
The term posterization is used because it can influence your photo similar to how the colors may look in a mass-produced poster, where the print process USES a limited number of color inks.
答案通常是色调，规模化程度1和5，并没有什么真正的调制。
The answers are usually tonal, on scale degrees 1 and 5, and there is little real modulation.
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