A Multi-scale Adaptive Grey World Algorithm

	A Multi-scale Adaptive Grey World Algorithm
	Li B(李兵)
刊名	IEICE Trans. On Inf. & Sys.
	2007
卷号	E91-D 期号:7 页码:1121-1124
关键词	Color Constancy
英文摘要	Grey world algorithm is a well-known color constancy algorithm. It based on the Grey-World assumption i.e., the average reflectance of surfaces in the world is achromatic. This algorithm is simple and has low computational costs. However, for the few color images, the light source color could not be estimated correctly using the Grey World algorithm. In this paper, we propose a multi-scale adaptive grey world algorithm (MAGW). First, multi-scale images are obtained based on wavelet transformation and the illumination color is estimated from different scales images. Then according to the estimated illumination color, the original image is mapped into under a canonical illumination with supervision of an adaptive reliability function, which is based on the image entropy. The experimental results show that our algorithm is effective and also has low computational costs.
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/20381]
专题	自动化研究所_09年以前成果
作者单位	Beijing Jiaotong University
推荐引用方式 GB/T 7714	Li B. A Multi-scale Adaptive Grey World Algorithm[J]. IEICE Trans. On Inf. & Sys.,2007,E91-D(7):1121-1124.
APA	Li B.(2007).A Multi-scale Adaptive Grey World Algorithm.IEICE Trans. On Inf. & Sys.,E91-D(7),1121-1124.
MLA	Li B."A Multi-scale Adaptive Grey World Algorithm".IEICE Trans. On Inf. & Sys. E91-D.7(2007):1121-1124.