Spatial Frequency

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Bharathwaj
Bharathwaj on 24 Dec 2011
Supposing i have a 1-D or 2-D data...how do i get the spatial frequencies from the FFT expression ( FFT results in a spectrum plotted against sample count)..

Accepted Answer

Wayne King
Wayne King on 24 Dec 2011
Hi, See this tutorial (which ImageAnalyst provided in an earlier post):
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Palguna Gopireddy
Palguna Gopireddy on 5 Nov 2021
I cant open this link.. Please post it again.

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More Answers (2)

David Young
David Young on 24 Dec 2011
From this demo:
The Fourier component corresponding to index j has j-1 cycles within the length of the original data.
If there are N data points, the component corresponding to index j has the same frequency as the component corresponding to index N-j+2.

Rick Rosson
Rick Rosson on 29 Dec 2011
Please check this related question:
HTH.

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