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Assessment of Color Measurement Systems Using Interference Filters



Paul A. Boynton, Eric Kelley


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


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


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], (Accessed July 18, 2024)


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Created June 30, 1998, Updated October 12, 2021