一种快速的色彩一致性校准算法  

A Fast Color Consistency Calibration Algorithm

作　　者：陈旭[1] 肖双九[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《东华大学学报（自然科学版）》2016年第4期478-484,共7页Journal of Donghua University(Natural Science)

基　　金：国家自然科学基金资助项目(61373085)

摘　　要：针对不同显示设备的色彩不一致性问题,提出了一种基于改进的薄板样条插值算法的快速校准方法.通过引入误差平衡因子来提高校准质量,并提出局部色度转换算法,根据每个像素点的输入色度来动态调节转换因子数值,避免色度转换时的过度缩放,减小色度自适应处理时的色度差.考虑空间异性色彩不一致的问题,利用GPU运算对每个像素点校准,并达到实时补偿效率.试验表明,该方法将色彩平均误差降低了88.84%,对于1 080P的图片色彩补偿帧率达到实时的30fps.Regarding the color inconsistency problem of different display devices, a fast calibration algorithm based on the improved thin-plate spline is presented. An error balance factor is introduced for a better calibration result, and a local chrominance fitting algorithm that adjust parameters dynamically based on the input pixel＇s color is used for less transition. Considering the spatial color inconsistency problem, this algorithm is run on GPU for the real-time color compensation. Experimental result shows that the method can reduce the average color error by 88. 84% , and achieve 30 fps real-time color compensation on 1 080 P image.

关 键 词：色彩一致性 色彩校准算法 薄板样条插值 色度自适应 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]