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Re: CONVOL2D [message #14343]

Thu, 18 February 1999 00:00

David Foster
Messages: 341
Registered: January 1996

Senior Member

Lisa Bryan wrote:
>
> Hello all,
>
> I had assumed that since the IDL help manual says:
> 'Assume R = CONVOL(A, K, S), where A is an n-element vector, K
>
> is an m-element vector'
>
> the function CONVOL acted in a 1D manner only, i.e. it worked on data
> as vectors and not arrays. Excuse the mistake. On the other hand
> I've decided to bypass colvolutions all together and delve into
> Fourier space (new territory for me so wish me luck!)

And actually you can use convolution to perform Fourier transforms.

Dave
--

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~
David S. Foster Univ. of California, San Diego
Programmer/Analyst Brain Image Analysis Laboratory
foster@bial1.ucsd.edu Department of Psychiatry
(619) 622-5892 8950 Via La Jolla Drive, Suite 2240
La Jolla, CA 92037
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~

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[Message index]

		Re: CONVOL2D By: David Foster on Thu, 18 February 1999 00:00
		Re: CONVOL2D By: lbryanNOSPAM on Wed, 17 February 1999 00:00
		Re: CONVOL2D By: meron on Wed, 17 February 1999 00:00
		Re: CONVOL2D By: David Foster on Tue, 16 February 1999 00:00
		Re: CONVOL2D By: davidf on Tue, 16 February 1999 00:00

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