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Re: About warp image on ENVI's pts file [message #63150 is a reply to message #63149]

Tue, 28 October 2008 21:03

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Biny Young writes:

> I registrated my camera image in Envi and got the pts file. But my
> problem is when I warp the image on the pts file using my IDL
> program ,the output image isn't the same as the one using Envi warped.
> It's not rectified correctly. But using the same pts file in Envi to
> warp ,the result is all right. Could anyone tell me why?

Do you have some reason why you believe ENVI is using the
same code you are? The general pattern in ENVI is that
when the ENVI folks find IDL code that sucks (map projections
come to mind) they write their own that does a better job.
It would not surprise me at all to learn their warping
routines were different (and probably superior) to those
found in IDL.

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: About warp image on ENVI's pts file By: Biny Young on Wed, 29 October 2008 01:57
		Re: About warp image on ENVI's pts file By: David Fanning on Tue, 28 October 2008 21:07
		Re: About warp image on ENVI's pts file By: David Fanning on Tue, 28 October 2008 21:03

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