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Field trials of a nonlinear color‐appearance model
Author(s) -
Nayatani Yoshinobu,
Sobagaki Hiroaki,
Hashimoto Kenjiro,
Yano Tadashi
Publication year - 1997
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/(sici)1520-6378(199708)22:4<240::aid-col5>3.0.co;2-p
Subject(s) - chromatic adaptation , standard illuminant , illuminance , optics , adaptation (eye) , nonlinear system , color balance , chromatic scale , artificial intelligence , color constancy , mathematics , color model , computer vision , color difference , computer science , physics , color space , color image , image processing , enhanced data rates for gsm evolution , image (mathematics) , quantum mechanics
Field trials of the nonlinear color‐appearance model by Nayatani et al. were conducted by using the three chromatic‐adaptation experiments by the Research Committee of CSAJ, Breneman, and McCann et al. Based on the preliminary analysis, the effective adaptation coefficient α min was introduced to the model to account for the effect of incomplete adaptation found under test chromatic illuminant. It was confirmed that the nonlinear color‐appearance model combined with α min predicted quite nicely all the experiments. In addition, it was also found that the coefficient α min is different for different color stimuli (object color or photographic transparency). In addition, the value of α min changes by changing the adapting illuminance of the experiment in each of the two kinds of color stimuli used. © 1997 John Wiley & Sons, Inc. Col Res Appl, 22, 240–258, 1997