说明：  实现 RGB YPbPr YCbCr / YCC YUV YIQ YDbDr JPEGYCbCr HSV / HSB HSL / HLS / HSI XYZ Lab Luv Lch 不同色彩制式之间的装换
(The realization of RGB YPbPr YCbCr/YCC YUV YIQ YDbDr JPEGYCbCr HSV/HSB HSL/HLS/HSI XYZ Lab Luv Lch different color between the standard equipment for)