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Quantification of illuminant metamerism for four coloration systems via metameric mismatch gamuts
Author(s) -
Berns Roy S.,
Fairchild Mark D.,
Beering Michael M.
Publication year - 1988
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.5080130605
Subject(s) - standard illuminant , gamut , achromatic lens , artificial intelligence , computer vision , mathematics , computer science , optics , physics
Illuminant metamerism was evaluated by generating achromatic metamers for an acrylic‐enamel coating, an acrylobutadiene styrene polymer, a polyester textile, and a nylon textile using computer colorant formulation techniques. The tristimulus matching algorithm used to generate the metamers was based on Kubelka‐Munk turbid media theory. By definition, each set of metamers that were formulated to match under CIE illuminant D 65 for the 1964 CIE standard observer would mismatch under a test illuminant, forming a gamut of colorimetric coordinates. These metameric mismatch gamuts were evaluated quantitatively using multivariate statistics. Illuminants A, F2, and F11, representing incandescent, cool‐white fluorescent, and narrow‐band fluorescent, respectively, were used as test illuminants. Illuminant similarities, coloration system similarities, tristimulus variability, and reference illuminant selection criteria were evaluated.