|
Estimating illuminant color based on luminance balance of surfaces |
JOSA A, Vol. 29, Issue 2, pp. A133-A143 (2012)
http://dx.doi.org/10.1364/JOSAA.29.00A133
Enhanced HTML 
Acrobat PDF (1362 KB)
Abstract
To accomplish color constancy the illuminant color needs to be discounted from the light reflected from surfaces. Some strategies for discounting the illuminant color use statistics of luminance and chromaticity distribution in natural scenes. In this study we showed whether color constancy exploits the potential cue that was provided by the luminance balance of differently colored surfaces. In our experiments we used six colors: bright and dim red, green, and blue, as surrounding stimulus colors. In most cases, bright colors were set to be optimal colors. They were arranged among 60 hexagonal elements in close-packed structure. The center element served as the test stimulus. The observer adjusted the chromaticity of the test stimulus to obtain a perceptually achromatic surface. We used simulated black body radiations of 3000 (or 4000), 6500, and 20000 K as test illuminants. The results showed that the luminance balance of surfaces with no chromaticity shift had clear effects on the observer’s achromatic setting, which was consistent with our hypothesis on estimating the scene illuminant based on optimal colors.
© 2012 Optical Society of America
OCIS Codes
(330.1690) Vision, color, and visual optics : Color
(330.1720) Vision, color, and visual optics : Color vision
ToC Category:
Color in natural or complex scenes
History
Original Manuscript: September 1, 2011
Revised Manuscript: November 11, 2011
Manuscript Accepted: November 14, 2011
Published: January 19, 2012
Virtual Issues
Vol. 7, Iss. 4 Virtual Journal for Biomedical Optics
Citation
Keiji Uchikawa, Kazuho Fukuda, Yusuke Kitazawa, and Donald I. A. MacLeod, "Estimating illuminant color based on luminance balance of surfaces," J. Opt. Soc. Am. A 29, A133-A143 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-2-A133
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. Figure files 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 
- Relational color constancy in achromatic and isoluminant images (JOSAA)
- Role of perceptual organization in chromatic induction (JOSAA)
- Invariant cone-excitation ratios may predict transparency (JOSAA)
- Surround articulation. I. Brightness judgments (JOSAA)
- Surround articulation. II. Lightness judgments (JOSAA)
Related Conference Papers
- 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
- Color rendering techniques applied to the study of butterflies wings
- Multilayer coatings on glass for painting protection and optimized color rendering
« Previous Article | Next Article »
OSA is a member of 