印刷媒体色彩变换方法的研究

The Comparison of Color Transform in Print Media

现代印刷媒体色彩的表达和应用需要同时满足RGB(显示)和CMYK(打印)两种不同色彩空间,并实现正确的色彩再现和色彩一致性。因此,如何以CIELAB为桥梁,建立RGB和CMYK的数学变换十分关键。本文基于对RGB和CMYK色彩模型的分析,研究分析了基于Nengebauer方程、神经网络、黑箱法建立RGB与CMYK之间色彩变换的方法,解决了印刷媒体色彩管理及其应用的诸多技术难题,并在实际应用中获得良好效果。

The color expression and application in modem print media need to meet both RGB ＆ CMYK color spaces, and keep the color reproduction ＆ color consistency. Therefor, the key is to build a mathematical manipulation between RGB and CMYK which is based on CIELAB. This paper is based on the analysis of RGB and CMYK color models, studies the method on color rendering between RGB and CMYK which is based on Nengebauer equation, N-N net and black-box method. The method has solved several technical problems in color management, and obtained good results in practical applications.