1. Fourier transform is applied to the image and Fourier centralization is used to display the centralized three-dimensional spectrum and projection image on each coordinate plane. 2. Fourier transform is used to transform the image. The (-1)(x+y)*f(x,y) method and fftshift method are used to centralize the transformed spectrum, and the significance of the program is explained. 3. Fourier transform is used to display the real part image, the imaginary part image, the spectrum image and the phase angle image respectively. The comparison shows how each image relates to the original image.

Filename	Size	Update
Shiyan7.m	4382	2019-03-26

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