这是离散分数傅里叶，传输2D的图像加密解密，还有密钥的加密解密-This is the discrete fractional Fourier, transmission 2D image encryption, as well as the encryption key to decrypt

discrete fourier transform low high pass filter. in matlab The following Matlab project contains the source code and Matlab examples used for discrete fourier transform low high pass filter.. function [g] = FFTPF1D (X,binsize, f, P) Discrete Fou