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Changes in constant‐hue loci with spatial frequency
Author(s) -
Elsner A. E.,
Burns S. A.,
Pokorny J.
Publication year - 1987
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.5080120108
Subject(s) - hue , spatial frequency , chromatic scale , confusion , constant (computer programming) , illuminance , optics , mathematics , artificial intelligence , pattern recognition (psychology) , computer science , physics , psychology , psychoanalysis , programming language
We examined the effects of spatial frequency and colorimetric purity using a hue‐matching technique. At constant retinal illuminance, hue matches of alternate stripes of square‐wave gratings changed with spatial frequency. At high spatial frequencies the data did not tend towards tritanopic confusion loci. Several alternative hypotheses, including optical factors, chromatic induction, and changes in the relative sensitivity of the opponent‐colors channels, are discussed. None of these mechanisms can explain all of the data.