Computational Color Constancy: Survey and Experiments

2011 ◽  
Vol 20 (9) ◽  
pp. 2475-2489 ◽  
Author(s):  
A. Gijsenij ◽  
T. Gevers ◽  
J. van de Weijer
Keyword(s):  
Color Constancy ◽  
Computational Color Constancy

Computational Color Constancy under Multiple Light Sources

2020 ◽  
Vol 2020 (10) ◽  
pp. 135-1-135-6
Author(s):  
Jaeduk Han ◽  
Soonyoung Hong ◽  
Moon Gi Kang
Keyword(s):  
Computer Vision ◽  
Color Constancy ◽  
Artificial Light ◽  
Light Sources ◽  
Color Representation ◽  
Conventional Methods ◽  
Computational Color Constancy

Without sunlight, imaging devices typically depend on various artificial light sources. However, scenes captured with the artificial light sources often violate the assumptions employed in color constancy algorithms. These violations of the scenes, such as non-uniformity or multiple light sources, could disturb the computer vision algorithms. In this paper, complex illumination of multiple artificial light sources is decomposed into each illumination by considering the sensor responses and the spectrum of the artificial light sources, and the fundamental color constancy algorithms (e.g., gray-world, gray-edge, etc.) are improved by employing the estimated illumination energy. The proposed method effectively improves the conventional methods, and the results of the proposed algorithms are demonstrated using the images captured under laboratory settings for measuring the accuracy of the color representation.

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