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Nonlocal graph regularization for image colorization

Olivier Lezoray 1 Vinh Thong Ta 1 Abderrahim Elmoataz 1
1 Equipe Image - Laboratoire GREYC - UMR6072
GREYC - Groupe de Recherche en Informatique, Image, Automatique et Instrumentation de Caen
Abstract : In this paper we present a simple colorization method that relies on nonlocal graph regularization. We introduce nonlocal discrete differential operators and a family of weighted p-Laplace operators. Then, p-Laplace regularization on weighted graphs problem is presented and the associated filter family. Image colorization is then considered as a graph regularization problem for a function mapping vertices to chrominances. Several results illustrate our framework and demonstrate the benefits of nonlocal graph regularization for image colorization.
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Submitted on : Monday, October 20, 2008 - 7:24:11 PM
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  • HAL Id : hal-00332400, version 1

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Olivier Lezoray, Vinh Thong Ta, Abderrahim Elmoataz. Nonlocal graph regularization for image colorization. International Conference on Pattern Recognition, 2008, Tampa, United States. ⟨hal-00332400⟩

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