Frequency domain lowpass filtering on images (2-D domain)

We have discussed the three type of lowpass filters in the frequency domain. (Ideal, Butterworth and Gaussian LPF)
296 Downloads
Updated Wed, 10 Mar 2021 13:43:36 +0000

View License

We have presented the code for three types of lowpass filtering in the frequency domain;
1. Ideal lowpass filter (ILPF) (Problem?)
2. Butterworth lowpass filter (BLPF)
3. Gaussian lowpass filter (GLPF)

You can clearly observe the problem of the ringing effect in the output of the low pass filter.
Reason for ringing effect;
Convolution of any image (consisting of groups of impulses of
different strengths) with the ripple shaped function results in the
ringing phenomenon.

Cite As

ABHILASH SINGH (2024). Frequency domain lowpass filtering on images (2-D domain) (https://www.mathworks.com/matlabcentral/fileexchange/88597-frequency-domain-lowpass-filtering-on-images-2-d-domain), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2020b
Compatible with any release
Platform Compatibility
Windows macOS Linux

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Lowpass filtering in frequency domain

Version Published Release Notes
1.0.0