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Flicker photometric sensitivity and chromatic adaptation in color‐deficient and normal observers
Author(s) -
Nagy Allen L.,
Harami Eureka,
Purl Kathleen F.
Publication year - 1984
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.5080090405
Subject(s) - chromatic adaptation , flicker , chromatic scale , adaptation (eye) , mathematics , sensitivity (control systems) , artificial intelligence , color vision , computer vision , psychology , optics , physics , computer science , engineering , computer graphics (images) , electronic engineering
Congenital red‐green color deficients and observers with normal color vision were asked to make flicker photometric matches on a red background, on a green background, and with no background present. Adaptation had no effect on the matches made by color deficients, but clearly affected the matches of normal observers. There were small differences between the matches of different observers. We attempted to characterize these differences by fitting the R and G curves of Smith and Pokorny to the data. Two parameters , Λ max and optical density, were varied to obtain the best fit. Extremely good fits were obtained, suggesting that individual differences can be characterized with these two parameters .