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Optimal color filters in the presence of noise

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2 Author(s)
Vrhel, M.J. ; Biomed. Eng. & Instrum. Program., Nat. Inst. of Health, Bethesda, MD, USA ; Trussell, H.J.

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

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Image Processing, IEEE Transactions on  (Volume:4 ,  Issue: 6 )