fourier transform - How to perform spectral inversion in the frequency domain to convert a low-pass filter into a high-pass filter? - Signal Processing Stack Exchange
Low pass filtering of an image in frequency domain | MATLAB Programming | Digital Image Processing - YouTube
Low Pass Butterworth Filter in Frequency Domain using MATLAB - YouTube
Example 1: Low-Pass Filtering by FFT Convolution
Example 1: Low-Pass Filtering by FFT Convolution
Frequency Domain Image Filtering in Matlab – Image Processing Blog