Assessment of Color Measurement Systems Using Interference Filters

Published

July 1, 1998

Author(s)

Paul A. Boynton, Eric Kelley

Abstract

Spectroradiometers and tristimulus colorimeters are used in display measurements to measure color in one of several color space coordinate systems. How well these instruments can measure the color coordinates can be simply checked by using interference filters. If a narrow-band interference filter is measured, the chromaticity coordinates obtained from the instrument should fall very near the spectrum locus of a standard color space. Assuming the instrument is linear and the white point calibrated accurately, if the colors on the spectrum locus are measured correctly, then all other colors within the color gamut should be measured accurately. The filter bandwidth and background noise in the instrumentation are modeled and shown to contribute to the distance of the color coordinates from the spectrum locus. Error sources within the measuring system are identified which could explain these observed anomalies. This method serves as a diagnostic tool, not a calibration.

Conference Dates

November 21-22, 1997

Conference Location

Scottsdale, AZ, USA

Conference Title

Commision Internationale de L''Eclairage [CIE] Expert Symposium

Pub Type

Conferences

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Keywords

colorimeter, color measurement, diagnostics, display measurement, interference filters, spectroradiometer

Citation

Boynton, P. and Kelley, E. (1998), Assessment of Color Measurement Systems Using Interference Filters, Commision Internationale de L''Eclairage [CIE] Expert Symposium, Scottsdale, AZ, USA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=30137 (Accessed January 16, 2025)