Chris: A landcover map, typically, is not going to have any spectral information (if it did, it would appear as extra bands in the data, which I have NEVER seen done). I would recommend trying to get in contact with whoever made it and ask them what imagery they used. Most of the NASA images are free, and many times even if the data was acquired commercially, the person who paid for it can redistribute it. Good luck!
--j On Sat, Nov 12, 2011 at 11:44 AM, Chris <[email protected]> wrote: > Hello all, > I have a 16 class landcover map, which I did not create, but would like to > derive spectral band ratios from it. Is this possible and how would I go > about doing this? Is there a method using NASA or USGS spectral > libraries? Any suggestions, methods, or literature would be greatly > appreciated. > Thank you in advance. > > Chris > -- Jonathan A. Greenberg, PhD Assistant Professor Department of Geography University of Illinois at Urbana-Champaign 607 South Mathews Avenue, MC 150 Urbana, IL 61801 Phone: 415-763-5476 AIM: jgrn307, MSN: [email protected], Gchat: jgrn307, Skype: jgrn3007 http://www.geog.illinois.edu/people/JonathanGreenberg.html
