基于分程Clapper-Yule模型的消光膜凹版印刷光谱预测模型的研究
Study on Spectral Prediction Model of Gravure Printing Matte Film Based on Piecewise Clapper-Yule Model
武城运 1郭凌华 1张宜洋1
作者信息
- 1. 陕西科技大学 轻工科学与工程学院,西安 710021;陕西科技大学 中国轻工业功能印刷与运输包装重点实验室,西安 710021
- 折叠
摘要
为了建立可以精确预测消光膜上凹版印刷的颜色光谱预测模型,本研究提出一种基于分程Clapper-Yule模型的光谱预测方法.以包含729个色块的IT8.7-4色靶为实验样本,利用Matlab软件建立分程系数数据集,以CIE DE1976色差公式为消光膜凹版印刷光谱预测模型的评价指标,并与现有的光谱预测模型进行了对比.实验结果表明,消光膜凹版印刷光谱预测模型色差ΔE*ab在0～3之间,占比为75%,整体平均色差ΔE*ab为1.7.本研究所建立的模型相较于经典Clapper-Yule模型具有较高的预测精度,能满足凹版印刷消光膜对颜色复制的需求.
Abstract
In order to establish an accurate spectral prediction model for gravure printing on matte film,a spectral prediction method based on piecewise Clapper-Yule model was proposed in this study.IT8.7-4 color target containing 729 color patches was used as the experimental samples.The piecewise coefficient dataset was established using Matlab software.CIE DE1976 color difference formula was used as the evaluation index of the spectral prediction model for gravure printing on matte film.It was compared with existing spectral prediction models.The results showed that the ratio of color differences ΔE*ab between 0～3 of the spectral prediction model for gravure printing on matte film was 75%.The overall average color difference ΔE*ab was 1.7.The model established in this study has higher prediction accuracy than the classical Clapper-Yule model,and can meet the need of color reproduction for gravure printing on matte film.
关键词
Clapper-Yule模型/分程系数/光谱反射率/消光膜Key words
Clapper-Yule model/Piecewise coefficients/Spectral reflectance/Matte film引用本文复制引用
基金项目
陕西省重点研发计划(2020GY-320)
出版年
2024
NETL
NSTL
万方数据