Analytical Approximations for Color Metric Coefficients II Friele Approximation
- 1 February 1964
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 54 (2) , 249-253
- https://doi.org/10.1364/josa.54.000249
Abstract
Friele has published a set of formulas based on an analysis of experimental color metric coefficients published by Brown and MacAdam. These formulas permit the direct computation of color metric coefficients that may be satisfactory for many uses. The results are here compared with the original experimental data. Contour diagrams showing the dependence of the Friele metric coefficients, g11, g12, and g22, on chromaticity are presented for comparison with the corresponding diagrams published by MacAdam in 1943, which are used for many applications.Keywords
This publication has 5 references indexed in Scilit:
- Analytical Approximations for Color Metric Coefficients*Journal of the Optical Society of America, 1957
- Color Discrimination of Twelve Observers*Journal of the Optical Society of America, 1957
- The Influence of Luminance Level on Visual Sensitivity to Color Differences*Journal of the Optical Society of America, 1951
- Visual Sensitivities to Combined Chromaticity and Luminance Differences*Journal of the Optical Society of America, 1949
- Specification of Small Chromaticity Differences*†Journal of the Optical Society of America, 1943