摘要
针对目前3-CCD扫描色彩失真问题,结合色彩管理应用需求,提出一种分区回归校正的新方法.新方法通过改进多项式回归校正模型,引入色调调整曲线(TRC)变换和开方运算,提高了回归校正的精度.讨论了按精度要求递归子分的分区校正策略及其校正样靶的设计方法.新方法可明显减小3-CCD扫描仪的检测误差,使其可用于打印设备彩色特性的自动检测.
With an aim to solve the color distortion of a 3-CCD scanner, a new regiondivision calibration method is proposed based on a modified calibration model of polynomial regression and used for color managements. This paper deals emphatically with the modification of the polynomial regression model, the strategy of automatic region-division calibration according to precision requirement and the design of color target for region-division calibration. Experiments show that the new method can increasingly improve the measurement precision, thereby offering the possibility of automatic measurement for printer color characteristics with a scanner rather than a spectrometer.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2006年第1期19-23,共5页
Journal of Xidian University
基金
国家部委科技预研基金资助项目(51416050301DZ0140)
陕西省自然科学基金资助项目(2001X06)
教育部"高等学校骨干教师资助计划"资助项目
关键词
扫描仪校正
彩色特性检测
色彩管理
多项式回归
scanner calibration
color characteristics detecting
color management
polynomial regression
