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Re: Reorganizing 2D FFT for Conventional Viewing [?] [message #4463 is a reply to message #4453]

Thu, 22 June 1995 00:00

$Rolf P. W\"urtz is currently offline$ Rolf P. W\"urtz
Messages: 3
Registered: June 1995

Junior Member

trond@smith.phys.ucalgary.ca (Trond Steinar Trondsen) wrote:
> I'm trying to rearrange the 2D FFT so that zero frq is in the middle,
> and all other frqs end up in the right place.

sx = size(x)
y=fft(x, -1)
rearranged = shift(y,sx(1)/2, sx(2)/2)

If youre array dimensions are even, zero frq cannot be in the middle,
it ends up at coords sx(1)/2, sx(2)/2.

Greetings
Rolf

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[Message index]

		Re: Reorganizing 2D FFT for Conventional Viewing [?] By: Chris Jacobsen on Fri, 23 June 1995 00:00
		Re: Reorganizing 2D FFT for Conventional Viewing [?] By: Rolf P. W\"urtz on Thu, 22 June 1995 00:00
		Re: Reorganizing 2D FFT for Conventional Viewing [?] By: rivers on Thu, 22 June 1995 00:00

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