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?
-
4You might want to have a look at the GRASS addon: i.topo.corr: grass.osgeo.org/wiki/GRASS_AddOns#i.topo.corr. There's a wiki page devoted to atmospheric correction: grass.osgeo.org/wiki/Atmospheric_correction– MichaCommented Jul 5, 2012 at 17:05
Add a comment
|
3 Answers
For SAGA:
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.
In GRASS, use i.topo.corr. See http://grass.osgeo.org/wiki/Image_processing#Correction_for_topographic.2Fterrain_effects
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.
