用于视频压缩编码中的RGB信号到色差信号变换的VHDL程序，非常实用-For video compression coding of the RGB signal to the color difference signal transform VHDL procedures, very useful

一个日本人的计算两个LAB色彩空间点的色差的函数-A Function implemented the Color difference with Two Color in CIE L*A*B ColorSpace from a japanese

CIEDE2000计算实例，每个步骤都有，计算最新的色差公式-Ref: G. Sharma, W. Wu, E.N. Dalal,"THE CIEDE2000 COLOUR-DIFFERENCE FORMULA: Implementation Notes, Supplementary Test Data, and Mathematical Observations," submitted to COLOR RESEARCH AND APPLICATION, Jan 2004.