Spherical Non-Perceptual Color Space RTP: Identifying Computer Graphics

Jean Pierre Díaz Paz, Humberto Loaiza Correa


This paper presents a non-perceptual color space based on spherical coordinates that is called  after ,  and . Like  space color,  decouples the information associated to chrominance  and intensity , however  keeps together the reddish colors. To show the potentials of our color space, we approach the problem of identifying either an image is a computer graphic or a photorealistic image. We got an average accuracy of  detecting computer graphics and outperforming the ones from ,  and  color spaces with statistically significative differences on classification average accuracy.  color space can be used in other issues where chrominance decoupling improves the discriminant capability.


Color space, computer graphics, image processing

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