katrin wrote: > > I have a sequence of satellite images (e.g 1 in the north, other in the > > center and other in south) that I want to merge in a single image. I > > found three GRASS methodologies: > > - r.series > > - r.patch > > - i.image.mosaic. > > Which one is the best to perform what I need?
Hamish: > I'm not really familiar with i.image.mosaic, but r.patch would be the > one to use if you have three satellite images taken in sequence which > you wish to merge into a single image. > r.series is usually used to merge overlapping maps, r.patch to merge > adjoining maps. > to make r.patch easier, you can do: > g.region rast=map1,map2,map3 > to extend the region settings to the outer bounds of all three maps. Something critical, if I am not wrong: the order of "map1,map2,map3" is important (when patching overlaping maps). Check the r.patch manual. Nikos _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
