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PSYCHOPHYSICAL INVARIANTS OF ACHROMATIC COLOUR VISION: II. Albedo/illumination substitution
Author(s) -
Lie Ivar
Publication year - 1969
Publication title -
scandinavian journal of psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 72
eISSN - 1467-9450
pISSN - 0036-5564
DOI - 10.1111/j.1467-9450.1969.tb00025.x
Subject(s) - achromatic lens , substitution (logic) , albedo (alchemy) , brightness , psychology , hue , optics , identification (biology) , psychophysics , texture (cosmology) , artificial intelligence , computer vision , physics , computer science , perception , art , botany , neuroscience , performance art , biology , art history , programming language , image (mathematics)
L ie , I. Psychophysical invariants of achromatic colour vision. II. Albedo/ illumination substitution. Scand. J. Psychol ., 1969, 10 , 176–184.—Can ‘identification of illumination’ be identified as one of the determinants of achromatic vision? Colour constancy is redefined in terms of deviation from albedo/ illumination substitution (A/I‐substitution). A series of A/I‐substitution experiments, performed under conditions assumed to provide minimal possibilities for identification of illumination, indicate that complete A/I‐substitution (zero constancy) is obtained for both brightness and whiteness, provided the test fields are equated with respect to colour temperature and perceived texture.