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I am trying to analyze images using IDL, and I need to create an ROI. Specifically, I have hundreds of images, each containing 6 bands. Two of the bands contain the longitude and latitude information of each image. I want to create an ROI using set thresholds on latitude band. ENVI has a tool for creating ROIs using band thresholds but I don't have license for it. Is it possible to do it using IDL?

Thank you!

Bereket
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  • [Shane Andrews](https://stackoverflow.com/users/11007437) posted an [Answer](https://stackoverflow.com/a/65161884) saying "This should help you to find out. I belive chapter 8 https://dav.lbl.gov/archive/NERSC/Software/idl/help6.1/image.pdf" – Scratte Dec 05 '20 at 21:43
  • Thanks for the link, @Scratte. I will see if it is relevant for my case. – Bereket Dec 22 '20 at 18:08
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    Note that I didn't find it. It was in your post as an Answer, but it was removed since it only contained a link. – Scratte Dec 22 '20 at 18:11
  • Got it! Thanks @shaneandrews. – Bereket Dec 22 '20 at 18:18

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