Suprathreshold color-difference ellipsoids for surface colors
The RIT‐DuPont visual color‐difference data [Color Res. Appl. 16, 297–316 (1991)] have been used to estimate contours of equal color‐differences (ellipsoids) at 19 color centers, in CIELAB and x, y, Y/100 color spaces. The ellipsoid fits are better in the CIELAB space than in x, y, Y/100, since the...
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Published in | Color research and application Vol. 22; no. 3; pp. 148 - 155 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
New York
Wiley Subscription Services, Inc., A Wiley Company
01.06.1997
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Subjects | |
Online Access | Get full text |
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Summary: | The RIT‐DuPont visual color‐difference data [Color Res. Appl. 16, 297–316 (1991)] have been used to estimate contours of equal color‐differences (ellipsoids) at 19 color centers, in CIELAB and x, y, Y/100 color spaces. The ellipsoid fits are better in the CIELAB space than in x, y, Y/100, since the design of the RIT‐DuPont experiment emphasized directional balance in CIELAB. The ellipsoids estimated are hardly tilted with respect to L* or Y/100, and they appear to be in overall good agreement with those reported for object colors in recent publications. From the characteristics and accuracy of the RIT‐DuPont experiment, the current ellipsoids can be considered highly reliable and representative of color discrimination under the observational conditions employed, these closely following the “reference conditions” recently suggested by the CIE for industrial color‐difference evaluation [Color Res. Appl. 20, 399–403 (1995)]. © 1997 John Wiley & Sons, Inc. Col Res Appl, 22, 148–155, 1997 |
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Bibliography: | istex:2852C1C7560073097927384CDFDE5E6E63796ECB ark:/67375/WNG-XCSQ6QTT-W ArticleID:COL3 |
ISSN: | 0361-2317 1520-6378 |
DOI: | 10.1002/(SICI)1520-6378(199706)22:3<148::AID-COL3>3.0.CO;2-R |