In this paper, a framework for diffusion of color images is presented. The method is based on the theory of thermodynamics of irreversible transformations which provides a suitable basis for designing correlations between the different color channels. More precisely, we derive an equation for color evolution which comprises a purely spatial diffusive term and a nonlinear term that depends on the interactions among color channels over space. We apply the proposed equation to images represented in several color spaces, such as RGB, CIELAB, Opponent colors, and IHS.

Generalized spatio-chromatic diffusion / G. Boccignone, M. Ferraro, T. Caelli. - In: IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE. - ISSN 0162-8828. - 24:10(2002 Oct), pp. 1298-1309. [10.1109/TPAMI.2002.1039202]

Generalized spatio-chromatic diffusion

G. Boccignone
Primo
;
2002

Abstract

In this paper, a framework for diffusion of color images is presented. The method is based on the theory of thermodynamics of irreversible transformations which provides a suitable basis for designing correlations between the different color channels. More precisely, we derive an equation for color evolution which comprises a purely spatial diffusive term and a nonlinear term that depends on the interactions among color channels over space. We apply the proposed equation to images represented in several color spaces, such as RGB, CIELAB, Opponent colors, and IHS.
Color images; Scale-space; Vector-valued diffusion
Settore ING-INF/05 - Sistemi di Elaborazione delle Informazioni
Settore INF/01 - Informatica
ott-2002
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/142788
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