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Quick question about FFT

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TecHNooB

TecHNooB

Diamond Member
When you take a 2-D FFT, do you have to zero extend your matrix beforehand? How does that work exactly. Descriptive answers are welcome 🙂
 
Originally posted by: TecHNooB
When you take a 2-D FFT, do you have to zero extend your matrix beforehand? How does that work exactly. Descriptive answers are welcome 🙂
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It depends on which FFT algorithm you're using. Is it just row-column? In which case does your 1D method require 0-padding? Basically this is very implementation specific, in my experience at least.
 
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