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Color appearance under conditions of chromatic adaptation and contrast
Author(s) -
Shevell Steven K.,
Wesner Michael F.
Publication year - 1989
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.5080140608
Subject(s) - chromatic adaptation , chromatic scale , adaptation (eye) , contrast (vision) , stimulus (psychology) , optics , perception , color vision , white light , mathematics , computer science , artificial intelligence , computer vision , physics , psychology , cognitive psychology , neuroscience
Chromatic adaptation can significantly alter the color appearance of a light. We review measurements of changes in appearance caused by chromatic backgrounds and surrounds. Effects of long‐, middle‐ and short‐wavelength adapting lights are assessed by having observers adjust the physical light in a test patch to maintain a constant perceptual criterion: a test that appears neither reddish nor greenish. A variety of spatial and temporal stimulus configurations also is considered. An integrated account of the measurements is provided by the two‐process theory of chromatic adaptation, originally proposed by Hurvich and Jameson in 1958, which specifies an adapting light alters receptoral sensitivities and, simultaneously, contributes an additive increment to opponent chromatic responses.