Spectral gamuts and spectral gamut mapping

Mitchell R. Rosen; Maxim W. Derhak

doi:10.1117/12.651191

17 January 2006 Spectral gamuts and spectral gamut mapping

Mitchell R. Rosen, Maxim W. Derhak

Proceedings Volume 6062, Spectral Imaging: Eighth International Symposium on Multispectral Color Science; 60620K (2006) https://doi.org/10.1117/12.651191
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

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.

Citation Download Citation

Mitchell R. Rosen and Maxim W. Derhak "Spectral gamuts and spectral gamut mapping", Proc. SPIE 6062, Spectral Imaging: Eighth International Symposium on Multispectral Color Science, 60620K (17 January 2006); https://doi.org/10.1117/12.651191

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