Information om | Engelska ordet ILLUMINANTS

Exempel på hur man kan använda ILLUMINANTS i en mening

• In 1964 the 10° CIE standard observer and its corresponding color matching functions as well as the new standard daylight illuminant D6500 were added, as well as a method for calculating daylight illuminants at correlated color temperatures other than 6500 kelvins.
• Although there is generally no one-to-one correspondence between illuminants and white points, in the case of the CIE D-series standard illuminants, the spectral power distributions are mathematically derivable from the chromaticity coordinates of the corresponding white points.
• Features include giving the user control over the matrix and LUT optimizers to hand-tune the trade-off between accuracy and smoothness, profile matching, generating reports for plotting, simulating reflective spectra, analyzing camera color separation performance under different illuminants, and flat-field correction of test-chart photos.
• 's representative in colorimetry in eight meetings of the International Commission on Illumination (CIE) from 1931 to 1967 and thereby a key force in the development of the CIE standard system of colorimetry, with its definitions of standard observers in 1931 and 1964, standard illuminants B and C, work resulting in upgraded daylight illuminants like D6500, definition of colorimetric purity and other matters.
• For CCTs less than 5000 K, the reference illuminants used in the CRI calculation procedure are the spectral power distributions (SPDs) of blackbody radiators; for CCTs above 5000 K, imaginary SPDs calculated from a mathematical model of sunlight are used.

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