OPTIMAL COLOR FILTERS IN THE PRESENCE OF NOISE

In this paper, the effect of noise on the number of effective channels (color filters) used to record a color image is investigated, Transmi ttances 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 resu lts indicate that a significant improvement in color correction accura cy is achieved by using four channels, there is good reason to conside r using four-tuples for representation of colorimetric information.