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Number of colors generated by smooth nonfluorescent reflectance spectra |
JOSA A, Vol. 29, Issue 12, pp. 2566-2575 (2012)
http://dx.doi.org/10.1364/JOSAA.29.002566
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Abstract
In this study, we have analyzed statistical properties of the values of the first- and second-order derivatives of spectral reflectance curves. We show that values of all four tested spectral data sets have very similar statistical properties. We set outer limits that bound the clear majority of the values of the first- and second-order derivatives. These limits define smoothness of all nonfluorescent reflectance curves, and they can be used to form a new object color solid inside classical MacAdam limits, including all possible colors generated by smooth nonfluorescent reflectance spectra. We have used the CIELAB color space and filled the new object color solid with a hexagonal closest packing-point lattice to estimate that there exist about 2.5 million different colors, when viewed under the D65 standard illumination.
© 2012 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
ToC Category:
Vision, Color, and Visual Optics
History
Original Manuscript: April 26, 2012
Revised Manuscript: August 21, 2012
Manuscript Accepted: October 9, 2012
Published: November 21, 2012
Virtual Issues
Vol. 8, Iss. 1 Virtual Journal for Biomedical Optics
Citation
Mika Flinkman, Hannu Laamanen, Pasi Vahimaa, and Markku Hauta-Kasari, "Number of colors generated by smooth nonfluorescent reflectance spectra," J. Opt. Soc. Am. A 29, 2566-2575 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-12-2566
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