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How to derive a spectrum from an RGB triplet

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1 Author(s)
Glassner, A.S. ; Tech. Univ., Delft, Netherlands

The accurate display of synthetic images requires careful attention to color. Simply modeling color with an RGB triplet leads to color aliasing. Most color antialiasing techniques begin with a specification of color as a spectral energy distribution. There are two apparent hurdles to be overcome to support the spectral model in rendering systems. One is the difficulty of interactively designing a spectral description of a desired color. The other problem is the difficulty of converting existing and useful libraries of RGB triplets into equivalent spectral representations. A simple method that takes as input an RGB triplet viewed on a given monitor and computes a corresponding spectrum for use in a rendering system is presented.<>

Published in:

Computer Graphics and Applications, IEEE  (Volume:9 ,  Issue: 4 )

Date of Publication:

July 1989

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