Color constancy and non-uniform illumination: Can existing algorithms work?

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Bleier M, Riess C, Beigpour S, Eibenberger E, Angelopoulou E, Tröger T, Kaup A
Publication year: 2011
Pages range: 774-781
ISBN: 9781467300629


Abstract


The color and distribution of illuminants can significantly alter the appearance of a scene. The goal of color constancy (CC) is to remove the color bias introduced by the illuminants. Most existing CC algorithms assume a uniformly illuminated scene. However, more often than not, this assumption is an insufficient approximation of real-world illumination conditions (multiple light sources, shadows, interreflections, etc.). Thus, illumination should be locally determined, taking under consideration that multiple illuminants may be present. In this paper we investigate the suitability of adapting 5 state-of-the-art color constancy methods so that they can be used for local illuminant estimation. Given an arbitrary image, we segment it into superpixels of approximately similar color. Each of the methods is applied independently on every superpixel. For improved accuracy, these independent estimates are combined into a single illuminant-color value per superpixel. We evaluated different fusion methodologies. Our experiments indicate that the best performance is obtained by fusion strategies that combine the outputs of the estimators using regression. © 2011 IEEE.


FAU Authors / FAU Editors

Kaup, André Prof. Dr.-Ing.
Lehrstuhl für Multimediakommunikation und Signalverarbeitung
Tröger, Tobias
Lehrstuhl für Multimediakommunikation und Signalverarbeitung


How to cite

APA:
Bleier, M., Riess, C., Beigpour, S., Eibenberger, E., Angelopoulou, E., Tröger, T., & Kaup, A. (2011). Color constancy and non-uniform illumination: Can existing algorithms work? In Proceedings of the 2011 IEEE International Conference on Computer Vision Workshops, ICCV Workshops 2011 (pp. 774-781). Barcelona, ES.

MLA:
Bleier, Michael, et al. "Color constancy and non-uniform illumination: Can existing algorithms work?" Proceedings of the 2011 IEEE International Conference on Computer Vision Workshops, ICCV Workshops 2011, Barcelona 2011. 774-781.

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Last updated on 2019-18-04 at 04:23