Cone contrasts do not predict color constancy

I. J. Murray, A. Daugirdiene, R. Stanikunas, H. Vaitkevicius, J. J. Kulikowski

    Research output: Contribution to journalArticlepeer-review


    A successive, asymmetric color-matching paradigm was used to investigate the link between cone contrast and the stability of perceived colors. We measured the perceived color shifts of 10 Munsell samples, induced by test illuminant A, simulated in u′v′ color space. The capacity of the visual system to resist these shifts, otherwise known as color constancy, is measured in terms of the Brunswik ratio, BR. Cone contrasts are calculated with respect to either the physical or perceived background. Subjective cone contrasts show a better fit to the von Kries law than those based on the physical background. Complete cone adaptation occurs when color constancy is high. However we show conditions where cone adaptation seems complete but color constancy is poor. Copyright © 2006 Cambridge University Press.
    Original languageEnglish
    Pages (from-to)543-547
    Number of pages4
    JournalVisual Neuroscience
    Issue number3-4
    Publication statusPublished - May 2006


    • Color appearance
    • Color constancy
    • Cone contrast
    • Physical background
    • Von Kries law


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