How to use FFT2

How to apply the 2D FFT functions in Matlab

You are now following this Submission

The note explains in detail how to apply the Matlab 2-dimensional FFT for filtering of two-dimensional signals, e.g. images.
It is shown how to connect the output from fft2 to the actual Fourier transform of the signal, and in particular how transfer functions of simple filters may be coded.

Cite As

Harald E. Krogstad (2026). How to use FFT2 (https://www.mathworks.com/matlabcentral/fileexchange/11639-how-to-use-fft2), MATLAB Central File Exchange. Retrieved .

Categories

Find more on Fourier Analysis and Filtering in Help Center and MATLAB Answers

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
1.0.0.0