DocumentCode :
1011189
Title :
Robust automatic white balance algorithm using gray color points in images
Author :
Huo, Jun-yan ; Chang, Yi-lin ; Wang, Jing ; Wei, Xiao-xia
Author_Institution :
Nat. Key Lab. on Integrated Service Networks, Xidian Univ., Xi´´an, China
Volume :
52
Issue :
2
fYear :
2006
fDate :
5/1/2006 12:00:00 AM
Firstpage :
541
Lastpage :
546
Abstract :
A robust automatic white balance algorithm is proposed in this paper, using extracting gray color points in images for color temperature estimation. A gray color point is the point where R, G and B components are equivalent under the canonical light source. A little color deviation of the gray color point from gray under different color temperature is used to estimate the color temperature of the light source. The test results show that the proposed algorithm can provide a good perceive effect and has the advantage of easy realization, low complexity and robust convergence.
Keywords :
image colour analysis; light sources; automatic white balance algorithm; canonical light source; color temperature estimation; gray color points; little color deviation; Cameras; Convergence; Face; Humans; Image segmentation; Light sources; Pixel; Robustness; Temperature; Testing;
fLanguage :
English
Journal_Title :
Consumer Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0098-3063
Type :
jour
DOI :
10.1109/TCE.2006.1649677
Filename :
1649677
Link To Document :
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