Research on color constancy computation based on YCbCr color space and gray surface

OPT OpenIR > 月球与深空探测技术研究室

	Research on color constancy computation based on YCbCr color space and gray surface
	Wang, Hong; Yang, Jianfeng; Xue, Bin; Yan, Xingtao; Liang, Xiaofen
	2014
会议名称	International Symposium on Optoelectronic Technology and Application 2014: Image Processing and Pattern Recognition, IPTA 2014
会议日期	2014-05-13
会议地点	Beijing, China
会议主办者	China High-Tech Industrialization Association; Chinese Society of Astronautics (CSA)
出版者	SPIE
产权排序	1
摘要	Color constancy is of important for many computer vision applications, such as image classification, color object recognition, object tracking and so on. But unlike the human visual system, imaging device cannot be able to compute color constant descriptors which do not vary with the color of the illuminant, so solving color constancy problem is necessary. In the calculation of color constancy, illuminant estimation is the key. Because grey surfaces can perfectly reflect the color of the scene illumination, many methods have been proposed to identify grey surfaces to estimate the illuminant. But they either rely on the camera.s parameters, lacking universality, or work inaccurate in worse conditions. In order to solve these problems, in this paper, an iterative method is proposed. The quality of the proposed method is tested and compared to the previous color constancy methods on the Macbeth Chart and two data sets of synthetic and real images. Through MATLAB simulation, experimental pictures and quantitative data for performance evaluation were gotten. The simulated results show that the proposed algorithm is accurate and efficient in identification of the grey surfaces, even in worse condition. And it performs well in color constancy computation on both synthetic and real images.
作者部门	月球与深空探测技术研究室
收录类别	CPCI（ISTP） ; EI
语种	英语
ISSN号	0277786X
文献类型	会议论文
条目标识符	http://ir.opt.ac.cn/handle/181661/22643
专题	月球与深空探测技术研究室
推荐引用方式 GB/T 7714	Wang, Hong,Yang, Jianfeng,Xue, Bin,et al. Research on color constancy computation based on YCbCr color space and gray surface[C]:SPIE,2014.

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