Material and lighting hues of object colour

Research output: Contribution to journalArticle

Abstract

Observers can easily differentiate between a pigmented stain and the white surface that it lies on. The same applies for a colour shadow cast upon the same surface. Although the difference between these two kinds of colour appearance (referred to as material and lighting hues) is self-evident even for inexperienced observers, it is not one that has been captured by any colour appearance model thus far. We report here on an experiment supplying evidence for the dissociation of these two types of hue in the perceptual space. The stimulus display consisted of two identical sets of Munsell papers illuminated independently by yellow, neutral, and blue lights. Dissimilarities between all the paper/light pairs were ranked by five trichromatic observers, and then analysed by using non-metric multidimensional scaling (MDS).

Original languageEnglish
Pages (from-to)611-617
Number of pages7
JournalOphthalmic and Physiological Optics
Volume30
Issue number5
DOIs
Publication statusPublished - 1 Sep 2010

Keywords

  • object colour
  • optics
  • human colour vision
  • vision sciences

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