一种基于Neugebauer方程的打印图像色彩管理新模型

A New Color Management Model for Printing Image Based on Neugebauer Equation

提出了一种新的YMC与CIE XYZ转换的色彩管理模型。分析了打印图像的呈色原理和误差产生原因,并重新解释Neugebauer方程和Yule-Nielson方程参数,使原本只适用于印刷网点图像的数学模型也适用于非印刷网点图像。以色靶彩色梯尺区的色块为实验对象,分单色、双色和三色修正,逐步推导出YMC与CIE XYZ转换的色彩管理模型。实验结果表明,本文模型具有较为满意的色彩管理效果。

A new color management model for the transform between YMC and CIE XYZ color space is presented. First the color rendering principle of printing image and the causes of color error are analyzed,and the parameters of Neugebauer equation and Yule-Nielson equation are reinterpreted,so the model can be used for non-printing dot image,which only can be used for printing dot image originally. Then,the paper uses the color blocks in the color shade district to deduce the model for the transform between YMC and CIE XYZ space color gradually through single color,double color and tricolor conversion correction. Finally the experimental results show that the model has satisfied the color conversion accuracy.