一种彩色印刷图像套印检测新方法研究  

A New Method for Detecting Color Printing Image Registration Error

作　　者：任玲辉[1] 刘凯[1] 张海燕[2] 徐卓飞[1] 周宇[2] 

机构地区：[1]西安理工大学机械紧密仪器工程学院,西安710048 [2]西安理工大学印刷包装工程学院,西安710048

出　　处：《机械科学与技术》2013年第3期399-404,共6页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51275406);陕西省教育厅科研计划项目(11JK0866)资助

摘　　要：提出了一种印刷品检测方法,用印刷图像信息取代套印控制条来检测套准。首先,把CCD采集到的印刷品图像从RGB色彩空间转换到CMYK色彩空间,并分解成C、M、Y、K(青、品、黄、黑)4个通道。之后求出C、M、Y、K通道图像的边缘,计算C、M、Y边缘图像和基准K边缘图像的距离边缘共生矩阵(distance edge cooccurrence matrix,DECM),即可求出四色套印偏差。通过仿真和实验证明本算法检测印刷品套准具有较高的精度,符合国家印刷行业标准规定的套准精度要求。为印刷机的工作状态的调整提供可靠的数据。In this paper, we present a new printing image registration error detection method based on the DECM （Distant Edge Co-occurrence Matrix）. We use printing image information to register errors. Firstly, we collect a printing image with the CCD camera and convert it from RGB color space to CMYK color space. Secondly, we sep- arate the image into C, M, Y, K color channels and obtain the edge image of each channel. We calculate the trans- lation distance between detecting the edge images （C, M, Y） and the reference edge image （K）. The method pro- posed in this paper can easily compute the four-color overprint deviation. The simulation results and experimental results have good agreement, indicating that the method is correct and effective.

关 键 词：印刷图像 套准检测 边缘提取 

分 类 号：TS826[轻工技术与工程]