Abstract

A program for a high-speed digital electronic computer is described for performing the computation of the Munsell renotations H, V, C corresponding to given CIE chromaticity coordinates x, y and daylight reflectance Y. Mathematically, this is equivalent to a three-dimensional coordinate transformation where two of the three transformation functions are given only numerically for a grid of discrete points. Since this grid consists of approximately 5000 points which are nonuniformly spaced, the major problem was to devise an economic scanning routine in order to find the point used in the interpolation. This was accomplished by consistent use of vector algebra and the help of an interpretive routine for vector operations.

© 1960 Optical Society of America

Extension of the Munsell Renotation System to Very Dark Colors

Deane B. Judd and Günter Wyszecki
J. Opt. Soc. Am. 46(4) 281-284 (1956)

A Regular Rhombohedral Lattice Sampling of Munsell Renotation Space

Günter Wyszecki
J. Opt. Soc. Am. 44(9) 725-734 (1954)

Automatic Photoelectric Colorimeter for Direct Reading of Munsell Coordinates

Gilbert L. Gibson and David A. Neubrech
J. Opt. Soc. Am. 44(9) 703-712 (1954)

Use of a Digital Readout Unit in Converting Spectrophotometric Data to Color Coordinates

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J. Opt. Soc. Am. 50(2) 137-143 (1960)

Color Appearance Specification with Adaptation to Daylight and Tungsten Illumination

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J. Opt. Soc. Am. 50(11) 1071-1074 (1960)