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Volume: 28 | Article ID: art00023
Most Luminous Tetrachromatic Surfaces
  DOI :  10.2352/ISSN.2470-1173.2016.15.IPAS-194  Published OnlineFebruary 2016

A surface of a given chromaticity is seen as more colourful, the more luminous it is; if the surface is black, its color is seen more vivid the less luminous it is. In the trichromatic case, the spectral reflectance of a most luminous surface is binary and may have at most 2 transitions or discontinuities, in the wavelength domain. Assuming a spectrally flat illuminant, we give analog conditions for the spectral reflectance of a surface to be most luminous, when observed through photoreceptors having four types of spectral function.

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Alfredo Restrepo (Palacios), Edisson Maldonado, "Most Luminous Tetrachromatic Surfacesin Proc. IS&T Int’l. Symp. on Electronic Imaging: Image Processing: Algorithms and Systems XIV,  2016,

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