HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Preprints, Working Papers, ...

Hue Constrained Image Colorization in the RGB Space

Abstract : This work proposes a novel variational frame- work for exemplar-based image colorization in RGB while most of existing methods use a luminance-chro- minance space. Using directly these three RGB chan- nels, our model does not need any pre or post-pro- cessing step. We design a primal-dual like algorithm that solves the proposed variational approach. The constraint when colorizing a gray-scale image is to maintain its luminance. In our RGB model this constraint is added in the variational model. Its preservation requires introducing a novel projection scheme that takes care of the hue value (H) of the HSI color-space. The behavior of our algorithm is illustrated on numerous examples, and a qualitative comparison is made with state-of-the-art methods.
Document type :
Preprints, Working Papers, ...
Complete list of metadata

Cited literature [33 references]  Display  Hide  Download

Contributor : Fabien Pierre Connect in order to contact the contributor
Submitted on : Friday, May 23, 2014 - 4:50:02 PM
Last modification on : Saturday, March 5, 2022 - 3:18:03 PM
Long-term archiving on: : Monday, August 25, 2014 - 11:35:40 AM


Files produced by the author(s)


  • HAL Id : hal-00995724, version 1



Fabien Pierre, Jean-François Aujol, Aurélie Bugeau, Vinh-Thong Ta. Hue Constrained Image Colorization in the RGB Space. 2014. ⟨hal-00995724⟩



Record views


Files downloads