comp.lang.idl-pvwave archive: archive » routine in ENVI to pass from EVF to ROI????

Home » Public Forums » archive » routine in ENVI to pass from EVF to ROI????

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: routine in ENVI to pass from EVF to ROI???? [message #49634 is a reply to message #49571]

Fri, 04 August 2006 08:50

David Streutker
Messages: 34
Registered: June 2005

Member

Once you have the vector of roi_addresses, you can use ARRAY_INDICES to
convert the addresses to 2-dimensional coordinates. Then find the MIN
and MAX of the x and y coordinates.

If you have read the original file already, just use
ENVI_WRITE_ENVI_FILE, Data[xMin:xMax,yMin:yMax] ...

If you don't have enough memory to read in the original file, I *think*
you can use MOSAIC_DOIT to clip the original. MOSAIC_DOIT is meant for
use with multiple files, but I believe it will work with a single one,
and you can use the x0 and y0 keywords to effectively subset the image.

-David

Report message to a moderator

[Message index]

		routine in ENVI to pass from EVF to ROI???? By: txominhermos on Thu, 03 August 2006 00:20
		Re: routine in ENVI to pass from EVF to ROI???? By: David Streutker on Mon, 07 August 2006 08:43
		Re: routine in ENVI to pass from EVF to ROI???? By: txominhermos on Tue, 08 August 2006 01:56
		Re: routine in ENVI to pass from EVF to ROI???? By: txominhermos on Sun, 06 August 2006 23:45
		Re: routine in ENVI to pass from EVF to ROI???? By: David Streutker on Fri, 04 August 2006 08:50
		Re: routine in ENVI to pass from EVF to ROI???? By: txominhermos on Fri, 04 August 2006 02:37
		Re: routine in ENVI to pass from EVF to ROI???? By: txominhermos on Tue, 08 August 2006 02:15

Previous Topic:	iPlot and applications
Next Topic:	Programmatically subset one image using ENVI routines.

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sun Oct 12 02:28:54 PDT 2025

Total time taken to generate the page: 0.32491 seconds