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

version 1.0.0 (6.74 MB) by ABHILASH SINGH
We have discussed the three type of highpass filters in the frequency domain. (Ideal, Butterworth and Gaussian HPF)

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Updated 10 Mar 2021

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We have presented the code for three types of highpass filtering in the frequency domain;
1. Ideal highpass filter (IHPF) (Problem?)
2. Butterworth highpass filter (BHPF)
3. Gaussian highpass filter (GHPF)

You can clearly observe the problem of the ringing effect in the output of the high 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.

You can download the code for the corresponding lowpass filters from the link given below;
https://in.mathworks.com/matlabcentral/fileexchange/88597-frequency-domain-lowpass-filtering-on-images-2-d-domain

Cite As

ABHILASH SINGH (2021). Frequency domain highpass filtering on images (2-D domain) (https://www.mathworks.com/matlabcentral/fileexchange/88602-frequency-domain-highpass-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

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Highpass filtering in frequency domain