Linear and nonlinear opponent color coding
نویسندگان
چکیده
منابع مشابه
Trichromatic opponent color classification
Stimuli varying in intensity and chromaticity, presented on numerous backgrounds, were classified into red/green, blue/yellow and white/black opponent color categories. These measurements revealed the shapes of the boundaries that separate opponent colors in three-dimensional color space. Opponent color classification boundaries were generally not planar, but their shapes could be summarized by...
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Model calculations are used to find an optimal color vision system for the coding of natural objects. The criteria to assess the quality of color vision are (a) discriminability between all colors of a given set; (b) discriminability between nearest neighbors (only the most similar colors of a set); and (c) detectability (color difference between target and background). The colored objects inve...
متن کاملAn opponent-process theory of color vision.
The two major theoretical accounts of color vision are those classified as the Young-Helmholtz and the Hering types of theories. For many years the former has been judged by most workers in the field to provide the simplest explanation of the way in which light stimuli give rise to color sensations. The advantages that appear to favor the Young-Helmholtz three-component hypothesis are two: it i...
متن کاملOpponent Color Space Motivated by Retinal Processing
We introduce a new opponent color space, which aims to mimic the color processing in the primate retina. Recent data from physiology and morphology are used to determine the model and its parameters. The input signal in LMS representation is first nonlinearly transformed by a response saturation stage. Then a linear, spatially extended transformation computes the opponent representation. In con...
متن کاملPerceiving opponent hues in color induction displays.
According to Hering's color theory, certain hues (red vs green and blue vs yellow) are mutually exclusive as components of a single color; consequently a color cannot be perceived as reddish-green or bluish-yellow. The goal of our study is to test this key postulate of the opponent color theory. Using the method of adjustment, our observers determine the boundaries of chromatic zones in a red-g...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 1975
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03204123