Abstract

A data-gathering system automatically enters spectrophotometric data on paper tape. The data are converted to CIE chromaticity coordinates, dominant wavelength, and excitation purity by a digital computer. The computer uses a weighted-ordinate method for calculating the CIE coordinates, and determines the dominant wavelength and excitation purity associated with these coordinates by a table-searching technique. The system is used for both transmittance and reflectance data.

© 1965 Optical Society of America

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

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

Color induction: Dependence on luminance, purity, and dominant or complementary wavelength of inducing stimuli

Arne Valberg
J. Opt. Soc. Am. 64(11) 1531-1540 (1974)

Mechanized Conversion of Colorimetric Data to Munsell Renotations

Werner C. Rheinboldt and John P. Menard
J. Opt. Soc. Am. 50(8) 802-807 (1960)

Chromatic Strength of Colors: Dominant Wavelength and Purity

Ralph M. Evans and Bonnie K. Swenholt
J. Opt. Soc. Am. 57(11) 1319-1324 (1967)

Further Analysis of Color Discrimination Data

L. F. C. Friele
J. Opt. Soc. Am. 55(10) 1314-1319 (1965)