Generalized spatio-chromatic diffusion

Author

Boccignone, Giuseppe ; Ferraro, Mario ; Caelli, Terry

Author_Institution

Dipt. di Ingegneria dell´´Informazione e Ingegneria Elettrica, Salerno Univ., Italy

Volume

24

Issue

10

fYear

2002

fDate

10/1/2002 12:00:00 AM

Firstpage

1298

Lastpage

1309

Abstract

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.

Keywords

diffusion; image colour analysis; image representation; thermodynamics; CIELAB; IHS; Opponent colors; RGB; color channels; color evolution; color images; diffusion; generalized spatio-chromatic diffusion; irreversible transformations; nonlinear term; scale-space; spatial diffusive term; thermodynamics; vector-valued diffusion; Anisotropic magnetoresistance; Biology computing; Color; Computer vision; Diffusion processes; Evolution (biology); Laplace equations; Nonlinear equations; Tensile stress; Thermodynamics;

fLanguage

English

Journal_Title

Pattern Analysis and Machine Intelligence, IEEE Transactions on

Publisher

ieee

ISSN

0162-8828

Type

jour

DOI

10.1109/TPAMI.2002.1039202

Filename

1039202