Interactions of chromatic components in the perceptual quantization of the achromatic component

Patrick Le Callet; Abdelhakim Saadane; Dominique Barba

doi:10.1117/12.348432

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19 May 1999 Interactions of chromatic components in the perceptual quantization of the achromatic component

Patrick Le Callet; Abdelhakim Saadane; Dominique Barba

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Proceedings Volume 3644, Human Vision and Electronic Imaging IV; (1999) https://doi.org/10.1117/12.348432
Event: Electronic Imaging '99, 1999, San Jose, CA, United States

Abstract

In the human color vision, it is well admitted that signals issued from the three types of receptors (L, M, S) are combined in two opponent color components and one achromatic component.In this paper, we are concerned by the cardinal directions A, Cr1 and Cr2 defined by Krauskopf. We study in particular the interactions between luminance and chromatic components. These interactions should be taken into account in visual coding since they modify the visibility thresholds. We present here results that show the influence of the two chromatic components on the optimal perceptual quantizer of the achromatic component in particular subbands. On the subband called III-1 of luminance, we show influence of Cr1 and Cr2 sinusoidal maskers. Other results are also presented on the subband called II-1 with Cr1 and Cr2 maskers.

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Patrick Le Callet, Abdelhakim Saadane, and Dominique Barba "Interactions of chromatic components in the perceptual quantization of the achromatic component", Proc. SPIE 3644, Human Vision and Electronic Imaging IV, (19 May 1999); https://doi.org/10.1117/12.348432