傅里叶变换 再用高通滤波器过滤得到反变换后的图像与原来图像对比 -FFT highpass

傅里叶变换处理图像，滤波器处理图像，设计滤波窗口对图像进行滤波，消除噪声-Fourier transform processing on the image, the image filter processing, filter design window image is filtered to eliminate noise

采用离散傅立叶变换实现的低通滤波器,希望对你们有用,MATLAB实现-The low-pass filter is realized by using discrete Fourier transform, hope useful to you, MATLAB