摘要
调频加网印刷存在密度计无法测出可靠的调频加网光学密度的问题,使传统的有效网点面积率计算公式(Murray-Davies公式)对于调频加网工艺不再适用。为了解决这个问题,避开密度测量,本文引人Murray-Davies的光谱反射率与网点面积率关系方程,利用最小二乘法求解有效网点面积率。实验结果显示,调频加网网点扩大规律与实际调频加网网点扩大规律基本一致。
Densitometers were not able to read the FM screening reliably, therefore we can not use the traditional Murray - Davies model of density on FM halftoning. To solving this problem, a new area effectively covered equation which using the regression was introduced. The results of experiment show that the rule of dot gain is almost the same as factual condition.
出处
《包装工程》
CAS
CSCD
北大核心
2006年第3期57-58,64,共3页
Packaging Engineering
