The peculiar nature of simultaneous colour contrast in uniform surrounds.
We present evidence from asymmetric colour matching experiments which strongly suggests that uniform surrounds evoke induction effects of a very peculiar nature, not representative of colour induction effects in variegated surrounds. Given the widespread use of uniform surrounds in studies of colour vision, this finding is of interest in relation to a number of current research issues, such as contrast coding of colour, functionally equivalent surrounds and colour constancy. A framework that systematises the seemingly complex colour appearance changes induced by uniform surrounds is presented and its implications are discussed.
Ekroll
Vebjørn
V
Institut für Psychologie, Christian-Albrechts-Universität zu Kiel, Olshausenstr. 62, 24118 Kiel, Germany. vekroll@psychologie.uni-kiel.de
Faul
Franz
F
Niederée
Reinhard
R
D000223:Adaptation, Psychological; D003118:Color Perception / Q000502:physiology*; D015350:Contrast Sensitivity / Q000502:physiology; D006801:Humans; D009903:Optical Illusions / Q000502:physiology*; D010775:Photic Stimulation / Q000379:methods; D011601:Psychophysics