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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 31, Iss. 4 — Apr. 1, 2014
  • pp: A283–A292

Perceiving the average hue of color arrays

Jacquelyn Webster, Paul Kay, and Michael A. Webster  »View Author Affiliations

JOSA A, Vol. 31, Issue 4, pp. A283-A292 (2014)

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The average of a color distribution has special significance for color coding (e.g., to estimate the illuminant) but how it depends on the visual representation (e.g., perceptual versus cone-opponent) or nonlinearities (e.g., categorical coding) is unknown. We measured the perceived average of two colors shown alternated in spatial arrays. Observers adjusted the components until the average equaled a specified reference hue. Matches for red, blue–red, or yellow–green were consistent with the arithmetic mean chromaticity, while blue–green settings deviated toward blue. The settings show little evidence for categorical coding, and cannot be predicted from the scaled appearances of the individual components.

© 2014 Optical Society of America

OCIS Codes
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics
(330.1690) Vision, color, and visual optics : Color
(330.1720) Vision, color, and visual optics : Color vision

ToC Category:
Unique hues and color categories

Original Manuscript: October 3, 2013
Revised Manuscript: December 11, 2013
Manuscript Accepted: December 23, 2013
Published: February 20, 2014

Virtual Issues
Vol. 9, Iss. 6 Virtual Journal for Biomedical Optics

Jacquelyn Webster, Paul Kay, and Michael A. Webster, "Perceiving the average hue of color arrays," J. Opt. Soc. Am. A 31, A283-A292 (2014)

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