How much should you zero pad an image before taking the fft ?
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If i have an image that is 200x200 and I want to take the FFT how much zero padding is required ?
2 comentarios
David Goodmanson
el 30 de Mzo. de 2020
Hi raheem, for what purpose might you want to use zero padding?
raheem mian
el 31 de Mzo. de 2020
Respuestas (1)
Bhargavi Maganuru
el 31 de Mzo. de 2020
Editada: Bhargavi Maganuru
el 31 de Mzo. de 2020
0 votos
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 comentario
David Goodmanson
el 31 de Mzo. de 2020
Editada: David Goodmanson
el 31 de Mzo. de 2020
HI Bhargavi,
could you explain why going to a power of 2 is a good idea, or not?
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