The concept of the color management system and the color space were simply presented in this paper, but I have paid more attention on the conversion from L*a*b* to CMY whose exactness was testified by using some data.

• 本文简单地介绍了色彩空间和色彩管理系统的概念，重点是建立L*a*b*到CMY的数学转换模型，并验证数学转换模型的精度。