How Multi-Illuminant Scenes Affect Automatic Colour Balancing

Peer reviewed: 
Yes, item is peer reviewed.
Scholarly level: 
Faculty/Staff
Final version published as: 

Xu, L., and Funt, B., "How Multi-Illuminant Scenes Affect Automatic Colour Balancing," Proc. AIC 2015 International Colour Association Conference, Tokyo. May 2015.

Date created: 
2015-05
Keywords: 
Colour balancing
Illumination estimation
Digital photography
Abstract: 

Many illumination-estimation methods are based on the assumption that the imaged scene is lit by a single course of illumination; however, this assumption is often violated in practice. We investigate the effect this has on a suite of illumination-estimation methods by manually sorting the Gehler et al. ColorChecker set of 568 images into the 310 of them that are approximately single-illuminant and the 258 that are clearly multiple-illuminant and comparing the performance of the various methods on the two sets. The Grayworld, Spatio-Spectral-Statistics and Thin-Plate-Spline methods are relatively unaffected, but the other methods are all affected to varying degrees.

Description: 

Presented at the AIC International Colour Association conference, May 2015.

Language: 
English
Document type: 
Conference presentation
Rights: 
Rights remain with the authors.
File(s): 
Sponsor(s): 
Natural Sciences and Engineering Research Council of Canada (NSERC)
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