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Re: 3D convolution [message #13743]

Wed, 02 December 1998 00:00

Dave Brennan
Messages: 28
Registered: December 1998

Junior Member

David Kastrup wrote:

> Dave Brennan <9147261b@clinmed.gla.ac.uk> writes:
>
>> Does anyone know of a simple way to conduct convolution on a 3D image
>> with a 3 x 3 x 3 convolution matrix using IDL.
>
> Why don't you just use the CONVOL function?
>
> --
> David Kastrup Phone: +49-234-700-5570
> Email: dak@neuroinformatik.ruhr-uni-bochum.de Fax: +49-234-709-4209
> Institut für Neuroinformatik, Universitätsstr. 150, 44780 Bochum, Germany

I didn't realise that convol would work with three dimensional convolution
matricies.
Sorry I have just converted over from Matlab 4.2!

Cheers

Dave Brennan

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Re: 3D convolution [message #13744 is a reply to message #13743]

Wed, 02 December 1998 00:00

Alex Schuster
Messages: 124
Registered: February 1997

Senior Member

Dave Brennan wrote:

> Does anyone know of a simple way to conduct convolution on a 3D image
> with a 3 x 3 x 3 convolution matrix using IDL.

I do! Just use the CONVOL routine:

IDL> result = convol( image, matrix )

Alex
--
Alex Schuster Wonko@weird.cologne.de PGP Key available
alex@pet.mpin-koeln.mpg.de

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Re: 3D convolution [message #13746 is a reply to message #13743]

Wed, 02 December 1998 00:00

David Kastrup
Messages: 33
Registered: February 1998

Member

Dave Brennan <9147261b@clinmed.gla.ac.uk> writes:

> Does anyone know of a simple way to conduct convolution on a 3D image
> with a 3 x 3 x 3 convolution matrix using IDL.

Why don't you just use the CONVOL function?

--
David Kastrup Phone: +49-234-700-5570
Email: dak@neuroinformatik.ruhr-uni-bochum.de Fax: +49-234-709-4209
Institut fï¿½r Neuroinformatik, Universitï¿½tsstr. 150, 44780 Bochum, Germany

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