Premium
Ways to define a tristimulus value
Author(s) -
Brill Michael H.
Publication year - 2017
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.22079
Subject(s) - consistency (knowledge bases) , value (mathematics) , mathematics , invariant (physics) , energy (signal processing) , wavelength , range (aeronautics) , optics , physics , statistics , discrete mathematics , materials science , mathematical physics , composite material
Tristimulus values are spectrum integrals, involving a test light, that predict the quantities of three primary lights that when mixed together will match the test light. As described widely elsewhere, tristimulus values depend on the selected primary lights. However, tristimulus values are invariant to change of the integrand's domain (e.g., from wavelength to frequency), and also to change of range (e.g., from quanta to energy units). Starting with that invariance, this tutorial note explains how to transform the factors in the tristimulus‐value integrand so as to obtain consistency among these representations of the tristimulus value. © 2016 Wiley Periodicals, Inc. Col Res Appl, 42, 305–307, 2017