纽介堡方程指数修正方法的理论剖析

Theoretical analysis of the index correction method of Neugebauer Equation

纽介堡方程揭示了印刷半色调颜色形成的物理基础和定量关系,在数字时代是一种非常有用的印刷色彩色域匹配工具。为减小纽介堡方程的应用误差,产生了指数修正方法。但是,尽管业界一直进行着不懈的努力,其效果总是不能令人满意。为此,本文进行了理论研究和仿真分析,结果表明,沿用了半个多世纪的纽介堡方程指数修正方法不具有科学性,无法消除其系统误差。

Neugebauer Equation reveals the physical basis and quantitative relationship on the formation of halftone printing color.It is a very useful matching tool for printing color Gamut mapping in this digital age.The Index correction method is proposed to reduce the application error of Neugebauer Equation.But,the results are still unsatisfactory despite industry＇s unremitting efforts.For this reason,theoretical research and simulation analysis are conducted in this paper.The results indicate that the Index correction method of Neugebauer Equation used for more than half a century is unscientific and unable to eliminate its systemic error.