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The time course of chromatic adaptation
Author(s) -
Shevell Steven K.
Publication year - 2000
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 - 10.1002/1520-6378(2001)26:1+<::aid-col37>3.0.co;2-5
Subject(s) - adaptation (eye) , chromatic adaptation , course (navigation) , computer science , psychology , artificial intelligence , neuroscience , physics , astronomy
Adaptation to light begins almost immediately, but requires more than 1 min to reach a steady state. In this study, the change in color appearance with chromatic adaptation is followed for 5 min after the onset of adapting light. Several different adapting fields are used: (1) a full background with a superimposed test vs. a surround outside a contiguous test; (2) a uniform adapting field composed of only long‐wavelength light vs. the same long‐wavelength field with added “context” composed of other chromaticities. The measurements show that adaptation after 10 s is not nearly complete; instead, color appearance continues to change for more than 2 min. Further, adding chromatic context has a greater effect on color appearance after several minutes of adaptation, compared to 10 s of adaptation, due to a smaller overall change of appearance in the steady state when context is present. © 2000 John Wiley & Sons, Inc. Col Res Appl, 26, S170–S173, 2001