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Proceedings Paper

Spectral gamuts and spectral gamut mapping
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Paper Abstract

All imaging devices have two gamuts: the stimulus gamut and the response gamut. The response gamut of a print engine is typically described in CIE colorimetry units, a system derived to quantify human color response. More fundamental than colorimetric gamuts are spectral gamuts, based on radiance, reflectance or transmittance units. Spectral gamuts depend on the physics of light or on how materials interact with light and do not involve the human's photoreceptor integration or brain processing. Methods for visualizing a spectral gamut raise challenges as do considerations of how to utilize such a data-set for producing superior color reproductions. Recent work has described a transformation of spectra reduced to 6-dimensions called LabPQR. LabPQR was designed as a hybrid space with three explicit colorimetric axes and three additional spectral reconstruction axes. In this paper spectral gamuts are discussed making use of LabPQR. Also, spectral gamut mapping is considered in light of the colorimetric-spectral duality of the LabPQR space.

Paper Details

Date Published: 17 January 2006
PDF: 11 pages
Proc. SPIE 6062, Spectral Imaging: Eighth International Symposium on Multispectral Color Science, 60620K (17 January 2006); doi: 10.1117/12.651191
Show Author Affiliations
Mitchell R. Rosen, Rochester Institute of Technology (United States)
Maxim W. Derhak, Onyx Graphics Corp. (United States)


Published in SPIE Proceedings Vol. 6062:
Spectral Imaging: Eighth International Symposium on Multispectral Color Science
Mitchell R. Rosen; Francisco H. Imai; Shoji Tominaga, Editor(s)

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