Color constancy algorithm without segmentation

IEICE Electronics Express

Cheol-Woo Jo¹  Oh-Seol Kwon¹ 

[1] Control and Instrumentation Engineering, Changwon National University

关键词: camera;    noise modeling;    and color constancy;   

DOI  :  10.1587/elex.10.20130377

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(7)Color constancy algorithms are often used for illuminant compensation. This paper proposes an illuminant compensation method using a camera noise analysis without segmentation. Pixels within highlight regions generally include large amounts of information on the image illuminant. Thus, the analysis of highlight regions provides a relatively easy means of determining the characteristics of an image illuminant. Given that sensor non-uniformity affects illuminant estimation, the proposed method selects valid pixels within a highlight region by analyzing the chromatic noise characteristics of the camera. The illuminant is then estimated using a modified dichromatic reflectance model based on the selected valid pixels. Experimental results confirm that the proposed method is superior to other conventional methods.

【 授权许可】

Unknown