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Measuring color‐matching functions. Part II. New data for assessing observer metamerism
Author(s) -
North Amy D.,
Fairchild Mark D.
Publication year - 1993
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.5080180306
Subject(s) - colorimeter , observer (physics) , matching (statistics) , mathematics , artificial intelligence , color difference , statistics , computer science , computer vision , pattern recognition (psychology) , optics , enhanced data rates for gsm evolution , physics , quantum mechanics
The Munsell Color Science Laboratory model and visual colorimeter for collecting color‐matching‐function data were described in Part I of this article. The model and instrument have demonstrated results that correlate well with data collected using the National Research Council of Canada's Trichromator. Color‐matching‐function data for 18 observers and 20 repetitions on a single observer have been obtained using the Munsell Color Science Laboratory visual colorimeter. The variability for the single observer for 20 repetitions over a month's time was found to be similar to the uncertainty of matching within a single measurement session. The variability of the 18 observers was found to be much larger. The results were compared with the CIE Standard Deviate Observer. The variability of the CIE Standard Deviate Observer was on the order of the single observer variability while the multiple observer variability was significantly larger.