色彩 FAQ
介绍
什么是色彩？
什么是光强度？
什么是光亮度？
什么是明度？
什么是色相？
什么是饱和度？
色彩是怎样被指定的？
我应该为图像数据使用一种表色系统吗？
红绿蓝对于亮度的比重有多大？
比起红色或绿色，可以为蓝色分配更少的位吗？
什么是视频亮度（luma）？
什么是 CIE XYZ 分量？
我的扫描仪使用 CIE 光谱曲线吗？
什么是 CIE x 和 y 色度坐标？
什么是白色？
什么是色温？
How can I characterize red, green and blue?
How do I transform between CIE XYZ and a particular set of RGB primaries?
Is RGB always device-dependent?
How do I transform data from one set of RGB primaries to another?
Should I use RGB or XYZ for image synthesis?
What is subtractive color?
Why did my grade three teacher tell me that the primaries are red, yellow and blue?
Is CMY just one-minus-RGB?
Why does offset printing use black ink in addition to CMY?
What are color differences?
How do I obtain color difference components from tristimulus values?
How do I encode Y'PBPR components?
How do I encode Y'CBCR components from R'G'B' in [0, +1]?
How do I encode Y'CBCR components from computer R'G'B' ?
How do I encode Y'CBCR components from studio video?
How do I decode R'G'B' from PhotoYCC?
Will you tell me how to decode Y'UV and Y'IQ?
How should I test my encoders and decoders?
What is perceptual uniformity?
What are HSB and HLS?
What is true color?
What is indexed color?
I want to visualize a scalar function of two variables. Should I use RGB values corresponding to the colors of the rainbow?
What is dithering?
How does halftoning relate to color?
What's a color management system?
How does a CMS know about particular devices?
Is a color management system useful for color specification?
I'm not a color expert. What parameters should I use to code my images?
参考文献
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How do I encode Y'CBCR components from R'G'B' in [0, +1]?
How do I encode Y'CBCR components from R'G'B' in [0, +1]?