色彩空间转换，提供CMY向LAB的色彩空间转换

基于L*a*b*空间的色彩分割程序，也就是能够根据图像中色彩空间不同的颜色，来确定不同颜色所在区域并进行划分-Based on the L* a* b* color space segmentation process, which is the color space of the image can be a different color, a different color to determine the area where the division and