title: Optimal color filters in the presence of noise.
abstract: The effect of noise on the number of effective channels (color filters) used to record a color image is investigated. Transmittances of color filters are calculated that minimize 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.
authors.affiliation: Biomed. Eng. and Instrum. Program., Nat. Inst. of Health, Bethesda, MD.
authors.forename: M J
authors.initials: MJ
authors.lastname: Vrhel
authors.forename: H J
authors.initials: HJ
authors.lastname: Trussell