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)
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Actualizado 10 Mar 2021

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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.

Citar como

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. Recuperado .

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Lowpass filtering in frequency domain

Versión Publicado Notas de la versión
1.0.0