这是快速傅里叶变换及逆变换的实现c代码，傅里叶变换是小波变换的基础更是图像及信号处理的基础-This is the fast Fourier transform and inverse transform of the realization of c code, Fourier transform is based on wavelet transform is the basis of image and signal processing

基于小波变换和快速傅里叶变换进行图像处理，尤其进行图像的去噪处理。-digital image processing based on wavelet transform and fast fourier transform,especially,It is used to image denoising.