Chromatic adaptation in the honeybee: Successive color contrast and color constancy

1981 ◽  
Vol 144 (4) ◽  
pp. 543-553 ◽  
Author(s):  
Christa Neumeyer
Keyword(s):  
Color Constancy ◽  
Chromatic Adaptation ◽  
Color Contrast

Partial Color Constancy of Isolated Surface Colors Examined by a Color-Naming Method

Perception ◽  
1989 ◽  
Vol 18 (1) ◽  
pp. 83-91 ◽  
Author(s):  
Keiji Uchikawa ◽  
Hiromi Uchikawa ◽  
Robert M Boynton
Keyword(s):  
Color Constancy ◽  
Color Naming ◽  
The State ◽  
Color Appearance ◽  
Chromatic Adaptation ◽  
Light Sources ◽  
Two Factors ◽  
The Subject ◽  
Spectral Distributions ◽  
Color Scales

Color samples selected from the OSA Uniform Color Scales set were viewed without any surround. Separate light sources were used to illuminate the samples and to control the state of adaptation of the subject, thereby separating two factors that are normally confounded. A color-naming procedure was used to assess shifts in color appearance produced by altering the spectral distributions of one or both light sources. The results confirm that chromatic adaptation, when it is the only factor operating, can mediate partial color constancy.

Chromatic adaptation and color constancy: A possible dichotomy

1986 ◽  
Vol 11 (3) ◽  
pp. 196-204 ◽  
Author(s):  
Michael H. Brill ◽  
Gerhard West
Keyword(s):  
Color Constancy ◽  
Chromatic Adaptation

Color-contrast and color-constancy.

1935 ◽  
Vol 18 (1) ◽  
pp. 49-63 ◽  
Author(s):  
G. Katona
Keyword(s):  
Color Constancy ◽  
Color Contrast

The cone/horizontal cell network: A possible site for color constancy

1998 ◽  
Vol 15 (5) ◽  
pp. 787-797 ◽  
Author(s):  
M. KAMERMANS ◽  
D.A. KRAAIJ ◽  
H. SPEKREIJSE
Keyword(s):  
Horizontal Cell ◽  
Color Constancy ◽  
Spectral Composition ◽  
Color Discrimination ◽  
Cell System ◽  
Horizontal Cells ◽  
Feedback Signal ◽  
Color Contrast ◽  
Cell Network ◽  
Simultaneous Color Contrast

Color vision is spectrally opponent, suggesting that spectrally opponent neurons, such as the horizontal cells in fish and turtle retinae, play a prominent role in color discrimination. In the accompanying paper (Kraaij et al., 1998), it was shown that the output signal of the horizontal cell system to the cones is not at all spectrally opponent. Therefore, a role for the spectrally opponent horizontal cells in color discrimination seems unlikely. In this paper, we propose that the horizontal cells play a prominent role in color constancy and simultaneous color contrast instead of in color discrimination. We have formulated a model of the cone/horizontal cell network based on measurements of the action spectra of the cones and of the feedback signal of the horizontal cell system to the various cone types. The key feature of the model is (1) that feedback is spectrally and spatially very broad and (2) that the gain of the cone synapse strongly depends on the feedback strength. This makes the synaptic gain of the cones strongly dependent on the spectral composition of the surround. Our model, which incorporates many physiological details of the outer retina, displays a behavior that can be interpreted as color constancy and simultaneous color contrast. We propose that the horizontal cell network modulates the cone synaptic gains such that the ratios of the cone outputs become almost invariant with the spectral composition of the global illumination. Therefore, color constancy appears to be coded in the retina.

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