HDR图像色调映射的自适应色彩调节算法  

Adaptive color adjustment method based on HDR image

作　　者：陈文艺 张龙 杨辉 Chen Wenyi;Zhang Long;Yang Hui(Institute of Internet of Things and IT-based Industrialization,Xi′an University of Posts&Telecommunications,Xi′an 710021,China;School of Communication and Information Engineering,Xi′an University of Posts&Telecommunications,Xi′an 710021,China)

机构地区：[1]西安邮电大学物联网与两化融合研究院,陕西西安710021 [2]西安邮电大学通信与信息工程学院,陕西西安710021

出　　处：《电子技术应用》2018年第11期107-110,共4页Application of Electronic Technique

摘　　要：为了克服传统色调映射算法处理高动态图像过程中因忽略彩色分量而导致图像色彩失真的现象,给出一种自适应的色彩调节算法。该方法首先对图像在亮度域采用色调映射压缩处理,然后再转换到色彩域,采用色彩恢复和色彩增强算法处理亮度压缩后的图像,从而校正图像色彩。通过实验与其他两种算法处理效果进行对比,分别从主观方面和客观方面进行分析,结果表明,在色彩域增加色彩调节算法处理,可以有效降低色彩失真的影响。In order to solve the problem of color distortion caused by ignoring color components in the process of traditional tone mapping inprocessing HDR images,an adaptive color adjustment method is presented.In the method,firstly the image is compressed by tone mapping in the luminance domain and then to the color domain,the color corrected image is processed using color recovery and color enhancement algorithms to correct for color distortion.Through experiments,it compares the method with the other two methods,and analyzes from the subjective and objective aspects respectively.The results show that adding color adjustment algorithm in color domain can effectively reduce the influence of color distortion.

关 键 词：高动态范围 色调映射 色饱和度 色彩恢复 色彩增强 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]