A method of obtaining gray balance data based on polynomial regression

摘要：

As gray balance is very important for color separation and printing quality control, a method based on polynomial regression is proposed to determining the gray balance data in printing process. Firstly the patches on GrayFinder target of GRACoL proof are measured and the L*a*b* values are obtained, then the relationship between L*a*b* and CMY is determined by using the polynomial regression method, at last the different lightness corresponding CMY values are found which constitute the gray balance data by using the relationship obtained above. In the experiment, 8 gray patches are used to test the algorithm, and the result shows the average error is 0.969 with the maximal error 2.047 which indicates that the method can be used to find gray balance data.

关键词： gray balance polynomial regression GrayFinder target

作者: SUN Bang-yong ZHOU Shi-sheng CAO Cong-jun ZHENG Yuan-lin

作者单位: Faculty of Printing and Packaging Engineering, Xian University of Technology, Xian 710048,China

会议类型: 国际会议

会议名称: 2011 International Conference on Advanced Material Research(ICAMR 2011)(2011年先进材料研究国际会议)

会议地点: 重庆

会议语种:英文

页码: 643-646

在线出版日期: 2011-01-21（万方平台首次上网日期，不代表论文的发表时间）