How much should you zero pad an image before taking the fft ?
Afficher commentaires plus anciens
If i have an image that is 200x200 and I want to take the FFT how much zero padding is required ?
2 commentaires
David Goodmanson
le 30 Mar 2020
Hi raheem, for what purpose might you want to use zero padding?
raheem mian
le 31 Mar 2020
Réponses (1)
Bhargavi Maganuru
le 31 Mar 2020
Modifié(e) : Bhargavi Maganuru
le 31 Mar 2020
0 votes
If input signal of fft is not in the powers of 2, which is 200 in your case so, you can do zero padding till length is 256.
1 commentaire
David Goodmanson
le 31 Mar 2020
Modifié(e) : David Goodmanson
le 31 Mar 2020
HI Bhargavi,
could you explain why going to a power of 2 is a good idea, or not?
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