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Re: Image warping in IDL [message #51143]

Wed, 08 November 2006 21:49

Robbie
Messages: 165
Registered: February 2006

Senior Member

I don't really understand the problem fully, but I'm sure that
INTERPOLATE does all the hard work for you.

I suspect that allocating a very large mapping array might result in an
overhead in memory allocation. If there is a sensible way to split up
your mapping function into logical chuncks then you could optimise that
way.

For example, I do a rotation of a 3D object in the X-Y plane. For very
large images it is more efficent to consider each plane independantly
and run INTERPOLATE on each of those slices (a.k.a ROT).

Robbie

http://www.barnett.id.au/idl/

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[Message index]

		Re: Image warping in IDL By: Robbie on Wed, 08 November 2006 21:49
		Re: Image warping in IDL By: JD Smith on Wed, 08 November 2006 09:07
		Re: Image warping in IDL By: Wox on Wed, 08 November 2006 06:50
		Re: Image warping in IDL By: David Fanning on Wed, 08 November 2006 06:01
		Re: Image warping in IDL By: Wox on Thu, 09 November 2006 02:53
		Re: Image warping in IDL By: Jeff Hester on Sat, 18 November 2006 15:22
		Re: Image warping in IDL By: Wox on Thu, 09 November 2006 04:37

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