基于新型色貌模型CAM16的颜色空间均匀性研究  

Research on Color Space Uniformity Based on New Color Appearance Model CAM16

作　　者：白雪琼 廖宁放 Bai Xueqiong;Liao Ningfang(Key Laboratory of Optoelectronic Imaging Technology and System,Ministry of Education,School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学光电学院光电成像技术与系统教育部重点实验室,北京100081

出　　处：《光学学报》2020年第4期209-214,共6页Acta Optica Sinica

基　　金：国家自然科学基金(61575020)。

摘　　要：对新型色貌模型CAM16的颜色空间均匀性进行分析评估,发现该模型颜色空间仍旧存在视觉均匀性不够理想的问题,这将会影响跨媒体颜色再现的准确性,导致相同颜色在不同观察环境下产生色差。为此,通过BFD色差数据集对该模型进行优化,以修正视觉均匀性,进而提出更为均匀的色貌模型CAM16-J′a′b′,同时采用国际通用的芒塞尔表色系统对优化后的颜色空间进行均匀性检验。结果表明,优化后的颜色空间均匀性有所提高,为跨媒体颜色再现研究提供了参考。In this study,the color space uniformity of a new color appearance model CAM16 is analyzed and evaluated.The vision uniformity of the color space of the CAM16 model is insufficient,which will affect the crossmedia color reproduction accuracy and result in color difference with respect to the same colors under different viewing conditions.Therefore,a BFD color difference dataset is used to optimize the model for ensuring visual uniformity,and an optimized color appearance model CAM16-J′a′b′is proposed.Subsequently,the optimized color space is subjected to a uniformity test based on international Munsell color system.The results denote an improvement in the uniformity of the optimized color space,thereby providing a reference for cross-media color reproduction research.

关 键 词：视觉光学 色度学 CAM16 均匀颜色空间 芒塞尔表色系统 

分 类 号：S801.3[农业科学—畜牧兽医]