On Feb 8, 2008 11:05 AM, Adrian <[EMAIL PROTECTED]> wrote: > On Thu, 7 Feb 2008 12:57:14 -0800 (PST) > Reno Bladergroen <[EMAIL PROTECTED]> wrote: > > > > > Hello list, > > > > I am trying to make a scenery for a soaring simulation game > > (silentwings). The common way to do this is combining RGB landsat7 > > bands (Tm3,2,1), then pan-sharpen this combination. So far I was able > > to do pan-sharpening using grass, but I was advised (and asked by the > > program) to choose the NIR and MIR bands. In that case I get kind of > > funny colors (purple roads, deep blue rivers etc), not really usable > > for the game. Can I do the same but then with the RGB bands? Do i > > need a different approach or can I use the same using band Tm3,2,1. > > Which band do i substitute for which? > > > > Thanks in advance, > > > > Reno > > The use of Near and Mid infrared bands is recommended for extracting > information from the image, particularly about vegetation and water. > To find the bands of the landsat 7 image that correspond to RGB, you > would have to look at the metadata for the image, but they are probably > bands 3,4,5.
Ususally: 1: B 2: G 3: R 4: NIR 5: MIR1 6: TIR 7: MIR2 > All functions within grass should function the same no matter > which bands are given as input values. Right. Using i.landsat.rgb often helps to obtain a nice color table: http://grass.osgeo.org/screenshots/rs.php Markus _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user