Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Is there a module in GRASS or SAGA (or a alternative open program) to do a topographic correction of a landsat image to enhance the land use classification?

Thanks! Martin

share|improve this question
You might want to have a look at the GRASS addon: i.topo.corr: There's a wiki page devoted to atmospheric correction: – Micha Jul 5 '12 at 17:05
up vote 2 down vote accepted


Module Name
Topographic Correction
Menu Terrain Analysis > Lighting

Note that you can always search for a module by right clicking "module library"in the workspace tab.

share|improve this answer
Oh, thats easy! :) Thanks – MAP Jul 6 '12 at 10:43

Not really a direct answer, but I can't make comments. I haven't used any of the tools on the page but have you had a look at the GRASS image processing page? It lists GRASS tools for classification and image correction.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.