Browsing by Subject "Image processing algorithms"

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    Nonseperable two-dimensional fractional Fourier transform
    (Optical Society of America, 1998) Sahin, A.; Kutay, M. A.; Özaktaş, Haldun M.
    Previous generalizations of the fractional Fourier transform to two dimensions assumed separable kernels. We present a nonseparable definition for the two-dimensional fractional Fourier transform that includes the separable definition as a special case. Its digital and optical implementations are presented. The usefulness of the nonseparable transform is justified with an image-restoration example.