Re: [GRASS-user] Ratioing and pan-sharpening

2009-07-05 Thread Markus Neteler
On Mon, Jun 22, 2009 at 3:24 PM, Hamishhamis...@yahoo.com wrote: Knut Arne Bjørndal wrote: Oh, and is it possible to pan-sharpen band 6 data too? I don't think so: band 6 is the thermal channel which is based on different physical principles. Markus

Re: [GRASS-user] Ratioing and pan-sharpening

2009-06-22 Thread Hamish
Knut Arne Bjørndal wrote: I tried i.fusion.brovey, and sharpened bands 3, 4 and 5 and then tried ratioing based on that but the output was very different (in a worse way) than the normal NDVI. Oh, and is it possible to pan-sharpen band 6 data too? i.fusion.brovey is just a shell script,

[GRASS-user] Ratioing and pan-sharpening

2009-06-21 Thread Knut Arne Bjørndal
Hi I'm trying to create a base layer for a topo map using a DEM and landsat data. To make sure everything isn't simply a smear of colors I use ratioing of the landsat bands so that I can draw with a couple of different colors. I currently use 4-3/4+3 (ndvi) and 5-6/5+6. Now I would like to