A Color Metric from Opponent-Color Visual Channels

1980 ◽  
Vol 5 (2) ◽  
pp. 76-80 ◽  
Author(s):  
Danny C. Rich
Keyword(s):  
Opponent Color

Bezold-bru¨cke hue shift and nonlinearity in opponent-color process

1984 ◽  
Vol 24 (12) ◽  
pp. 1897-1904 ◽  
Author(s):  
Yoshimichi Ejima ◽  
Shigeko Takahashi
Keyword(s):  
Opponent Color

scholarly journals Steady-State Visual Evoked Potentials Elicited from Early Visual Cortex Reflect Both Perceptual Color Space and Cone-Opponent Mechanisms

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Sae Kaneko ◽  
Ichiro Kuriki ◽  
Søren K Andersen
Keyword(s):  
Visual Cortex ◽  
Steady State ◽  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Color Space ◽  
Color Contrast ◽  
Response Latencies ◽  
Opponent Color ◽  
Early Visual Cortex ◽  
Visual Evoked

Abstract Colors are represented in the cone-opponent signals, L-M versus S cones, at least up to the level of inputs to the primary visual cortex. We explored the hue selective responses in early cortical visual areas through recordings of steady-state visual evoked potentials (SSVEPs), elicited by a flickering checkerboard whose color smoothly swept around the hue circle defined in a cone-opponent color space. If cone opponency dominates hue representation in the source of SSVEP signals, SSVEP amplitudes as a function of hue should form a profile that is line-symmetric along the cardinal axes of the cone-opponent color space. Observed SSVEP responses were clearly chromatic ones with increased SSVEP amplitudes and reduced response latencies for higher contrast conditions. The overall elliptic amplitude profile was significantly tilted away from the cardinal axes to have the highest amplitudes in the “lime-magenta” direction, indicating that the hue representation in question is not dominated by cone-opponency. The observed SSVEP amplitude hue profile was better described as a summation of a perceptual response and cone-opponent responses with a larger weight to the former. These results indicate that hue representations in the early visual cortex, measured by the SSVEP technique, are possibly related to perceptual color contrast.

An experimental comparison of RGB, YIQ, LAB, HSV, and opponent color models

1987 ◽  
Vol 6 (2) ◽  
pp. 123-158 ◽  
Author(s):  
Michael W. Schwarz ◽  
William B. Cowan ◽  
John C. Beatty
Keyword(s):  
Experimental Comparison ◽  
Color Models ◽  
Opponent Color

Segmentation of map image using opponent color dimensions

1996 ◽  
Vol 21 (2) ◽  
pp. 115-120 ◽  
Author(s):  
Ningyan Liu ◽  
Hong Yan ◽  
Paul Martin
Keyword(s):  
Opponent Color

Opponent Color Responses in Retinal Ganglion Cells

Science ◽  
1960 ◽  
Vol 131 (3409) ◽  
pp. 1314-1314 ◽  
Author(s):  
H. G. Wagner ◽  
E. F. MacNichol ◽  
M. L. Wolbarsht
Keyword(s):  
Retinal Ganglion Cells ◽  
Ganglion Cells ◽  
Retinal Ganglion ◽  
Opponent Color

Opponent-color units in the thalamus of the pigeon (Columba livia)

1973 ◽  
Vol 13 (8) ◽  
pp. 1555-I ◽  
Author(s):  
Stephen Yazulla ◽  
A.M. Granda
Keyword(s):  
Columba Livia ◽  
Opponent Color
Sign in / Sign up

Export Citation Format

Share Document