基于GCR的CMY与C′M′Y′K转换算法  

The Conversion Algorithm of CMY and C′M′Y′K Based on GCR

作　　者：张岩[1,2] 魏庆葆[1] 

机构地区：[1]郑州牧业工程高等专科学校,郑州450011 [2]南京林业大学,南京210037

出　　处：《包装工程》2010年第5期27-29,共3页Packaging Engineering

基　　金：河南省重点科技攻关项目(082102250002)

摘　　要：介绍了颜色空间转换中,三维空间L*a*b*与四维空间C′M′Y′K的转换途径、K值产生的原理以及K值对三原色的影响。讨论了使用灰成分替代(GCR)确定K值,通过灰平衡数据得出C′M′Y′值,以及建立CMY与C′M′Y′K对应关系的方法,最终完成L*a*b*与C′M′Y′K颜色空间的转换。The conversion between L^＊ a^＊ b^＊ and C＇M＇Y＇K is a transform from three color space to four color space. The methods of confirming the amount of black based on the Gray Component Replacement（GCR） theory were analyzed, the data of gray balance and the amount of C＇M＇Y＇ were obtained. And the one to one corre spondence between CMY and C＇M＇Y＇K was established, so that the CMY was conversed to C＇M＇Y＇K and the conversion between L^＊ a^＊ b^＊ and C＇M＇Y＇K was carried out.

关 键 词：GCR 灰平衡 CMY C’M’Y’K 转换算法 

分 类 号：TS801.3[轻工技术与工程]