Document Detail


Sensitivity to modulation of color distribution in multicolored textures.
MedLine Citation:
PMID:  11483178     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We evaluated the discriminability of color distributions in square-element textures. Each texture contained 225 colors, represented by a distribution of color vectors in color space defined by the L-M and S-(L+M) axes. Each color distribution was systematically manipulated by modulating the distribution of the vector lengths sinusoidally as a function of the direction in the color space. The results showed that it is difficult to resolve a color distribution modulated in more than three cycles per 360 degrees in the chromatic direction. The difference in components along the cardinal axes is not a critical factor in the discrimination of the color distribution. An analysis using a line-element model suggested that the discrimination of the color distribution is mediated by multiple chromatic channels that are tuned to a variety of directions in the color space with a half-height-half-bandwidth of about 40 degrees in the chromatic direction.
Authors:
N Goda; M Fujii
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Vision research     Volume:  41     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  2001 Sep 
Date Detail:
Created Date:  2001-08-02     Completed Date:  2001-09-06     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  2475-85     Citation Subset:  IM    
Affiliation:
ATR Human Information Processing Research Laboratories, 2-2 Hikaridai, Seika-cho, Soraku-gun, 619-0288, Kyoto, Japan. ngoda@isd.atr.co.jp
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MeSH Terms
Descriptor/Qualifier:
Color Perception / physiology*
Contrast Sensitivity / physiology*
Differential Threshold / physiology
Discrimination (Psychology) / physiology*
Humans
Psychometrics
Retinal Cone Photoreceptor Cells / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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