Encoding and Processing Spatio - Chromatic Image
نویسندگان
چکیده
In this paper we develop a technique for encoding the variation of color over space using properties of the complex image Fourier transform where the image is deened by a complex number encoding, at each position, of hue (color angle) and saturation (color magnitude) values. The technique involves interpreting the complex coeecients of the non-symmetric spatio-chromatic frequency components in such a way as to generate spatial frequency gratings: basis functions which appear as \rainbow-gratings" which can directly encode the spatial juxtaposition of color. The transform can therefore extract spatio-chromatic structures or correlations in normal and iso-luminant images.
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