opponent color

op·po·nent col·or

pairs of color that share color channels in the retina (red-green, blue-yellow, black-white).
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The opponent color space is constructed to be consistent with human visual system, because it is proven more efficient for human visual system to record differences between the responses of cones, rather than each type of cone's individual response.
Moreover, each pair of the color band is utilized in collecting opponent color patterns so that the centroid pixel for a neighborhood and the neighborhood itself are taken from various color bands.
oRGB: A pratical opponent color space for computer graphics.
The behavior is repeated every 180 degrees and coincides with the opponent color positions (yellow-blue for example).
Unique hues: The opponent color theory describes six colors where two colors build an opponent pair at a time.
Because of the strong color gradients, especially between red and green (opponent colors), a large proportion of our less experienced students was misled and placed the fronts at color boundaries instead of at the strongest equivalent potential temperature gradients.
The seven neuronal features are sensitive to opponent color contrast, intensity contrast and four orientations (0[degrees], 45[degrees], 90[degrees], and 135[degrees]).
The CIELAB space incorporates an opponent color encoding (Figure 2).
The extended version consisted in alternating between numbers and colors, using the ciphers 1 to 9, the colors red/green and yellow/blue (opponent colors).
Under these conditions, trichromacy and the opponent colors model suggest that luminance will predict brightness perception, at least within the region near the blackbody locus.
Red and green act as opponent colors, as do combinations of red and green receptors (yellow) and blue.
To enhance contrast, use opponent colors, such as red-green or yellow-blue.