RGB LAB 色域映射-相对再现意图的一种算法。主要是RGB-XYZ-Lab-RGB LAB gamut mapping- an algorithm relative rendering intent. RGB-XYZ-Lab

此程序包含：rgb颜色空间、Lab颜色空间、XYZ颜色空间之间的相互转换-This program includes: conversion between RGB color space, Lab color space, the XYZ color space