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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 22, Iss. 3 — Mar. 1, 2005
  • pp: 401–415

Chromatic shadow compatibility and cone-excitation ratios

Genevieve M. Heckman, Jeffrey A. Muday, and James A. Schirillo  »View Author Affiliations


JOSA A, Vol. 22, Issue 3, pp. 401-415 (2005)
http://dx.doi.org/10.1364/JOSAA.22.000401


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Abstract

Logvinenko [Perception 31, 201 (2002)] asserts that Adelson's wall-of-blocks illusion [Science 262, 2042 (1993)], where identical gray-cube surface tops appear to differ in brightness, arises when the surfaces surrounding the cube tops are shadow compatible, creating a concomitant illusion of transparency. We replicated Logvinenko's main findings in the chromatic domain across three experiments in which observers match cube tops in hue, saturation, and brightness. A second set of stimuli adjusted cone-excitation ratios across the apparent transparency border [Proc. R. Soc. London 257, 115 (1994)], which enhanced lightness and brightness constancy but only when the stimuli varied in both chromaticity and intensity.

© 2005 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

Citation
Genevieve M. Heckman, Jeffrey A. Muday, and James A. Schirillo, "Chromatic shadow compatibility and cone-excitation ratios," J. Opt. Soc. Am. A 22, 401-415 (2005)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-22-3-401

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