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Re: subset an image by roi in idl [message #50307]

Tue, 26 September 2006 09:48

peter.eddy@shaw.ca
Messages: 19
Registered: March 2005

Junior Member

Jeff N.
If I understand correctly from your comment..

gis_learner wrote:
> 3) as you said the roi's are as big as the original image. I tried to
> define ROI from the subsetted images so that I can use in the original
> ones.. But the result is terrible.....

ROI's in ENVI are referenced by pixel coordinates (not geo-coordinates)
so if you try to use roi boundarys (dims= ) on two images with
different x y extents (nl= | ns= ) it will not work.

If you like you can email me directly, and I'll give you a hand. We
dont want to turn this group into >> idl-pvwave-ENVI-techsupport. ;)

Pete

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[Message index]

		Re: subset an image by roi in idl By: peter.eddy@shaw.ca on Tue, 26 September 2006 09:48
		Re: subset an image by roi in idl By: gis_learner on Tue, 26 September 2006 04:45
		Re: subset an image by roi in idl By: Jeff N. on Mon, 25 September 2006 10:36
		Re: subset an image by roi in idl By: gis_learner on Thu, 28 September 2006 23:32

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