Color filter selection for color correction in the presence of noise

Authors:
Michael J. Vrhel;H. Joel Trussell
Affiliations:
Electrical & Computer Engineering Dept., North Carolina State University, Raleigh, NC;Electrical & Computer Engineering Dept., North Carolina State University, Raleigh, NC
Venue:
ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: image and multidimensional signal processing - Volume V
Year:
1993

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Abstract

In this paper the effect of the noise on the number of effective channels (color filters), used to record a color image, is investigated. Transmittances of color filters are calculated which minimise the mean square error that occurs when estimating, from the recorded data, the colors in the image under a collection of viewing illuminants. Since the results indicate that a significant improvement in color correction accuracy is achieved by using four channels, there is good reason to consider using four-tuples for representation of colorimetric information.