EXEMPLAR-BASED COLORIZATION IN RGB COLOR SPACEReport as inadecuate




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1 IMB - Institut de Mathématiques de Bordeaux 2 LaBRI - Laboratoire Bordelais de Recherche en Informatique

Abstract : This paper deals with the problem of image colorization. A model including total variation regularization is proposed. Our approach colorizes directly the three RGB channels, while most existing methods were only focusing on the two chrominance channels. By using the three channels, our approach is able to better preserve color consistency. Our model is non convex, but we propose an efficient primal-dual like algorithm to compute a local minimizer. Numerical examples illustrate the good behavior of our algorithm with respect to state-of-the-art methods.

Keywords : Colorization total variation patches optimization variational methods





Author: Fabien Pierre - Jean-François Aujol - Aurélie Bugeau - Nicolas Papadakis - Vinh-Thong Ta -

Source: https://hal.archives-ouvertes.fr/



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