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Comparing Pixel Values in Images With IDL [message #49649]

Wed, 09 August 2006 09:50

SeskaLien
Messages: 1
Registered: August 2006

Junior Member

I'd like to apologize if this is a simple question, but I am new to IDL
and haven't had a lot of experience with it yet. I have some GeoTIFF
files created in ENVI (georeferenced MODIS imagery that has been
exported as GeoTIFF files) that I need to compare with one another to
see if there is snow cover in some and not others. The images are
georeferenced and have common points, but do not have the same
dimensions or same complete coverage areas. So, I think I need to find
a way to have IDL read them in and tell me the pixel value at specific
lat/long points common in each image so I can see how the albedo is
changing (the images are taken over a range of time). Could anyone help
me out as to how to go about this? Thank you very much!

~Seska

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		Comparing Pixel Values in Images With IDL By: SeskaLien on Wed, 09 August 2006 09:50
		Re: Comparing Pixel Values in Images With IDL By: Ulan on Thu, 10 August 2006 03:13

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