Relational color constancy in achromatic and isoluminant images
JOSA A, Vol. 17, Issue 2, pp. 225-231 (2000)
http://dx.doi.org/10.1364/JOSAA.17.000225
Acrobat PDF (148 KB)
Abstract
Relational color constancy, which refers to the constancy of perceived relations between surface colors under changes in illuminant, may be based on the computation of spatial ratios of cone excitations. As this activity need occur only within rather than between cone pathways, relational color constancy might be assumed to be based on relative luminance processing. This hypothesis was tested in a psychophysical experiment in which observers viewed simulated images of Mondrian patterns undergoing colorimetric changes that could be attributed either to an illuminant change or to a nonilluminant change; the images were isoluminant, achromatic, or unmodified. Observers reliably discriminated the two types of changes in all three conditions, implying that relational color constancy is not based on luminance cues alone. A computer simulation showed that in these isoluminant and achromatic images spatial ratios of cone excitations and of combinations of cone excitations were almost invariant under illuminant changes and that discrimination performance could be predicted from deviations in these ratios.
© 2000 Optical Society of America
[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
(330.4060) Vision, color, and visual optics : Vision modeling
Citation
Sérgio M. C. Nascimento and David H. Foster, "Relational color constancy in achromatic and isoluminant images," J. Opt. Soc. Am. A 17, 225-231 (2000)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-17-2-225
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Chromatic contrast sensitivity: the role of absolute threshold and gain constant in differences between the fovea and the periphery (JOSAA)
- Role of perceptual organization in chromatic induction (JOSAA)
- Surround articulation. I. Brightness judgments (JOSAA)
- Seeing unique hues (JOSAA)
- Perceiving color across scale: great and small, discrete and continuous (JOSAA)
Related Conference Papers
- Correcting Color Images for Stray-Light Effects by Computationally Solving an Inverse Problem via Selected-Ordinate Image (SORI) Processing
- Fiber Optic Full Color Synthesizer
- White Light Emissions from Complex Core-Shell Nanoparticles
- OSA Rochester Section Optics Suitcase: a forty-minute middle school outreach program for the cost of a postage stamp
- Comparison of Farnsworth and Kinnear method of plotting the Farnsworth Munsell 100-Hue test scores
« Previous Article | Next Article »
OSA is a member of 