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Unsupervised color-image segmentation by multicolor space iterative pixel classification

[+] Author Affiliations
Nicolas Vandenbroucke

LISIC, EA 4491, Université du Littoral Côte d’Opale, Maison de la recherche, F-62228 Calais Cedex, France

Laurent Busin

TIAMA, msc & sgcc, 69390 Vourles, France

Ludovic Macaire

LAGIS, UMR CNRS 8219, Université Lille 1, Bâtiment P2, F-59655 Villeneuve d’Ascq Cedex, France

J. Electron. Imaging. 24(2), 023032 (Apr 21, 2015). doi:10.1117/1.JEI.24.2.023032
History: Received November 28, 2014; Accepted March 17, 2015
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Abstract.  We propose a color-image segmentation algorithm by unsupervised classification of pixels. The originality of the proposed approach consists in iteratively identifying pixel classes by taking into account both the pixel color distributions in several color spaces and their spatial arrangement in the image. In order to overcome the difficult problem of the color space choice, the algorithm selects the color space that is well suited to construct the class at each iteration step. The selection criterion is based on connectedness and color homogeneity measures of pixel subsets. In order to tune the sensitivity of segmentation, we introduce a hierarchical criterion that allows us to segment images with different numbers of regions as human observers do. Experiments carried out on the well-known Berkeley segmentation dataset show that this multicolor space approach succeeds in constructing classes that effectively correspond to regions in the image.

© 2015 SPIE and IS&T

Citation

Nicolas Vandenbroucke ; Laurent Busin and Ludovic Macaire
"Unsupervised color-image segmentation by multicolor space iterative pixel classification", J. Electron. Imaging. 24(2), 023032 (Apr 21, 2015). ; http://dx.doi.org/10.1117/1.JEI.24.2.023032


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