Hi Nikos, if you have a i.landsat.toar corrected scene, please extract the values for
- water pixel - green vegetation - asphalt ... all bands except for TIR. I want then to synthetic channels of one pixel to do the i.vi testing: # prepare comp. region g.region rast=lsat7_2002_10 rows=1 cols=1 -p # create synthetic channels (for the letters, we need your values) r.mapcalc "water_b7 = aa" r.mapcalc "water_b5 = bb" r.mapcalc "water_b4 = cc" r.mapcalc "water_b3 = dd" r.mapcalc "water_b2 = ee" r.mapcalc "water_b1 = ff" Likewise for the other "landuses". This allows us to create a tiny test environment to check the output. I am just lacking a prepared Landsat scene (and the time to process it). Since you already have it, you may extract the values easily with r.what or the wxGUI. thanks Markus _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
