Summary: MORPHOLOGICAL COLOR PROCESSING BASED ON DISTANCES.
APPLICATION TO COLOR DENOISING AND ENHANCEMENT BY CENTRE
AND CONTRAST OPERATORS
Centre de Morphologie Math´ematique - Ecole des Mines de Paris,
35, rue Saint-Honor´e, 77305 Fontainebleau, FRANCE
The extension of mathematical morphology operators to
multi-valued functions, and in particular to color images,
is neither direct nor general. In this paper is proposed a
generalisation of distance-based and lexicographical-based
approaches, allowing the extension of morphological op-
erators to color images for any color representation (e.g.
RGB, LSH and L*a*b*) and for any metric distance to a
reference color. The performance of these morphological
color operators is illustrated by means of two applications:
color denoising by the centre operator and color enhance-
ment by the contrast mapping.