论分色与加网的相关性  

Study on the correlation of separation and screening

作　　者：成刚虎[1] 李云香[1] 吴娇[1] 

机构地区：[1]西安理工大学印刷包装与数字媒体学院,陕西西安710048

出　　处：《西安理工大学学报》2016年第2期218-225,共8页Journal of Xi'an University of Technology

基　　金：陕西省教育厅专项科研计划研究资助项目(2010JK706)

摘　　要：半色调原理是现代彩色印刷的物理基础,分色和加网是彩色印刷印前处理过程中的核心内容。作为两个不可或缺的工艺过程,长期以来分色和加网一直被业内当作(或假设为)两道独立的操过工序进行作业。由此引入的系统误差也一直被人们忽视。基于色光加色法,针对分色与加网的关系和影响,本文进行了理论考查和仿真分析。研究结果表明:加网方法随分色过程而确定,分色模型及结果因加网方法(或假设)而改变。由此得出结论:分色和加网在理论上是相关的,不具有相互独立性。For the modern color printing fields, halftone principle is the physical foundation, separation and screening is the core content in the process of color printing prepress processing. As the key and indispensable process, separation and screening has been regarded as （or assumed） two separate operations to carry out over the step operation in the industry for a long time. Thus system error introduced also have been overlooked. However, by considering relationship and in- fluence of separation and screening, in this paper, we have confirmed formation of printing pixels and relationship of color information according to theoretical research and simulation analysis based on additive color shade. The results indicate： Screening method is determined with the sep- aration process, separation model and the result because of screening methods （or assumptions） are changed. And consequently the results show that： separation and screening is theoretically relevant and does not have a mutual independence.

关 键 词：分色 加网 相关性 系统误差 

分 类 号：TS801.3[轻工技术与工程]