Introduction - If you have any usage issues, please Google them yourself
One Photo caption: A: After the Fourier transform frequency spectrum diagram B: the role of Notch function, the frequency spectrum of post-C: The inverse transform of the filtered images, the effect is not very satisfactory Ifft2: To verify their Fast Fourier Transform program correctness, using matlab inverse transformation process will own the spectrum after the inverse transform graphics, and the Original line, indicating the fast Fourier transform correctly.