Colour representation spaces at different physiological levels : A comparative analysis

摘要: In this work, we analyse and compare several linear nonlinear colour representation spaces at different physiological levels, show the relationships between discuss mathematical properties they should exhibit. At photoreceptor level, examine cone excitation contrast spaces. We second-stage spaces, usually known as ATD- paying particular attention to Boynton's space including a space, opponent modulation space. addition, approach third-stage transformations, which might take place cortical level. Finally, perceptual ATD-type discussing how it be derived transformation of an LGN-based ATD-space. R?sum?. Dans ce travail, nous analysons et comparons divers espaces lin?aires non de repr?sentation la couleur relativement ? diff?rents niveaux physiologiques, en montrant des relations entre discutant quelles propri?t?s math?mathiques doivent poss?der. Au niveau photor?cepteurs examinons l'espace d'excitation c?nes contraste c?nes. Parmi les deux niveaux, connus habituellement sous le nom d'espaces ATD, ?tudions notamment Boynton un espace nonlinear, modulations opposantes. Nous consid?rons aussi transformations troisi?me qui ont lieu au cortical. Finallement, perceptif du type comment tel pourrait ?tre obtenu comme une transform?e d'un ATD bas? sur NGL. Mots cl?s: Espaces c?nes, opposantes,