Document Detail

Color opponency and discrimination.
MedLine Citation:
PMID:  9088088     Owner:  NLM     Status:  MEDLINE    
The rationale for color opponency is investigated. A principle of optimal discrimination of visual information is introduced: If two visual variables are kept fixed, the third one, left free, must vary as much as possible. We prove that, if satisfied, the principle requires the existence of two chromatic functions, which are under the reference source E (corresponding to the equal-energy spectral distribution function), orthogonal with respect to a certain inner product, so that given one function, the other one is determined, apart from a multiplicative constant. Experimental chromatic functions are recovered. Two almost-illuminant-independent chromatic variables, eta and zeta, are constructed from the achromatic variables in the companion paper.
C van Trigt
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the Optical Society of America. A, Optics, image science, and vision     Volume:  14     ISSN:  1084-7529     ISO Abbreviation:  J Opt Soc Am A Opt Image Sci Vis     Publication Date:  1997 Apr 
Date Detail:
Created Date:  1997-05-02     Completed Date:  1997-05-02     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9800943     Medline TA:  J Opt Soc Am A Opt Image Sci Vis     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  756-66     Citation Subset:  IM    
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MeSH Terms
Color Perception / physiology*
Models, Theoretical
Retinal Cone Photoreceptor Cells / physiology
Sensory Thresholds

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