离线彩色套印误差检测系统  

A Off-line System on Detection of Overprint Deviation in Color Printing

作　　者：于丽杰[1] 李德胜[1] 王跃宗[1] 

机构地区：[1]北京工业大学 机电技术研究所

出　　处：《北京工业大学学报》2008年第5期466-470,486,共6页Journal of Beijing University of Technology

基　　金：科技部支撑计划重点资助项目(13001790200701)．

摘　　要：为了实现彩色印刷套印误差的检测,提出了基于计算机视觉的检测方法,并设计了检测算法.应用CCD采集印版测量标识的图像,在HSI色彩空间中,通过色调统计特征进行套准识别,并通过色调和亮度对彩色图像进行阈值分割,对分割后的图像采用色调投影积分方法快速获取测量标识的坐标参数,实现彩色套印误差的检测.实验表明,该系统能快速准确地检测出套印误差参数,并已经用于北人集团印刷机套印精度的检测.In order to detect the overprint deviation in color printing, the article brought forward a method based on computer vision and established its algorithm. The image of the measuring mark of plate captured by CCD, recognized and analyzed the registered mark by the statistic character of hue in HSI space, and segmented the color image by the 2 paramaters of hue and intensity, measuring data about the registering quality can be obtained by hue projecting integral method after color image segmentation. Experimental results show that the system can fast enough measure the exact overprint deviation in color printing and have used to examine the overprint precision in Beiren Printing Machinery Co., Ltd.

关 键 词：计算机视觉 HSI彩色空间 阈值分割 投影积分 

分 类 号：TP274.3[自动化与计算机技术—检测技术与自动化装置]