Decomposition of fluorescent illuminant spectra for accurate colorimetry
- 17 December 2002
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2, 1002-1006
- https://doi.org/10.1109/icip.1994.413506
Abstract
Fluorescent lamps are widely used in the office environ- ment and in common desktop scanners. These lamps are characterized by the nearly monochromatic emis- sion lines present in their radiant spectrum. Due to the presence of spectral lines special care is required in the computation of tristimulus values under these illuminants. Accurate computation of the tristimulus values can be performed digitally by modeling the ra- diance as the sum of a continuous spectrum emitted by the phosphors and weighted impulses correspond- ingto the emission lines(2, 14, 3). This paper considers a scheme for estimatingthe continuous spectrum and the strengths of the impulses from measurements of the spectrum with band limited sensors. The impact of noise in measured data on the accuracy of the final color computation is also considered.Keywords
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