Design of a customized pattern for improving color constancy across camera and illumination changes

Hazem Wannous (1) , Sylvie Treuillet (1) , Yves Lucas (1) , Alamin Mansouri (2) , Yvon Voisin (2)

1 PRISME - Laboratoire Pluridisciplinaire de Recherche en Ingénierie des Systèmes, Mécanique et Energétique
2 Le2i - Laboratoire Electronique, Informatique et Image [UMR6306]

This paper adresses the problem of color constancy on a large image database acquired with varying digital cameras and lighting conditions. Automatic white balance control proposed by an available commercial camera is not sufficient to provide reproducible color classification. A device-independent color representation may be obtained by applying a chromatic adaptation transform, from a calibrated color checker pattern included in the field of view. Instead of using the standard Macbeth color checker, we suggest to select judicious colors to design a customized pattern from contextual information. A comparative study demonstrates that this approach insures a stronger constancy of the interesting colors before the vision control.

Mots clés: chromatic adaptation; Color imaging; color checker design; chromatic adaptation.

Domaines: Vision par ordinateur et reconnaissance de formes [cs.CV]

Hazem Wannous, Sylvie Treuillet, Yves Lucas, Alamin Mansouri, Yvon Voisin. Design of a customized pattern for improving color constancy across camera and illumination changes. VISAPP 2010 - Fifth International Conference on Computer Vision Theory and Applications, May 2010, Angers, France. pp.98-104. ⟨hal-00648508⟩