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Re: Convolution, IDL & Numerical Recipes [message #32768 is a reply to message #32671]

Fri, 01 November 2002 06:53

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

R.G. Stockwell (sorry@noemail.now) writes:

> Perhaps you want to use the following keywords:
> Check out the help file to see the effects the keywords
> have on how the arrays line up to be convolved.
> (Note: you must explicitly set center=0, or else it defaults
> to 1)

Alright, now, can you give me the layman's definition
of the difference between spacial filtering (CENTER=1)
and convolution "in the strict mathematical sense"
(CENTER=0). Which would I use if I'm trying to make
a pretty image? :-)

Cheers,

David

P.S. Let's just say I'm open to some private mathematical
tutoring in exchange for some GREAT object-oriented
widget programs.

--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		Re: Convolution, IDL & Numerical Recipes By: David Fanning on Fri, 01 November 2002 06:48
		Re: Convolution, IDL & Numerical Recipes By: R.G. Stockwell on Fri, 01 November 2002 06:09
		Re: Convolution, IDL & Numerical Recipes By: R.G. Stockwell on Fri, 01 November 2002 06:01
		Re: Convolution, IDL & Numerical Recipes By: Kenneth P. Bowman on Thu, 31 October 2002 19:41
		Re: Convolution, IDL & Numerical Recipes By: James Kuyper on Thu, 31 October 2002 17:10
		Re: Convolution, IDL & Numerical Recipes By: David Fanning on Thu, 31 October 2002 14:29
		Re: Convolution, IDL & Numerical Recipes By: JD Smith on Thu, 31 October 2002 13:48
		Re: Convolution, IDL & Numerical Recipes By: aceves on Mon, 04 November 2002 18:55
		Re: Convolution, IDL & Numerical Recipes By: David Fanning on Fri, 01 November 2002 06:53
		Re: Convolution, IDL & Numerical Recipes By: aceves on Fri, 01 November 2002 17:06

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