Hello List, I would like to ask your help on several subjects. I already wrote down other questions but till now all methods suggested did not really work and I'm wondering whether I can use grass for my application.
What i would like to do is creating a high resolution RGB image of some landsat images. I downloaded all images (Red, Green, Blue, NIR, MIR and pan.). To get a real color image i started using the RGB channels. d.rgb, gives a somewhat dark image. So I used i.landsat.rgb to enhance it's color profile but then I get the first error: /Applications/GRASS-6.3.app/Contents/MacOS/scripts/i.landsat.rgb: line 138: [: -gt: unary operator expected Do i have to re-install i.landsat.rgb?? The following thing is trying to pan-sharp the image, but pan-sharpening is only able with the NIR/MIR/Green images which generates a funny purple/blue image. I was told that I could use any image for brovey sharpening, but then I get a really blue image. I think this is logical, because the calculation used for pan-sharpening with a different color profile image should be different right? So the next question is, which RGB color should I use in stead of MIR and NIR: Blue for MIR?, Red for NIR? So till now only ugly strange pictures. The other thing is how do the pansharpening pixels integrate into the RGB color range? White...? What should i do first? Then one more thing: I reprojected the mentioned tiff files from XY (meters) to LL. But... using r.proj, the resolution of all these images drop to non-usable values for a high resolution image. I read the imaging tutorial which is outdated. I still didn't get the book, although I have doubts that this book can help me. Should I purchase the book, even though I'm not sure if Grass is the appropriate application to use? Therefore I hope to get some help from you first, to make a good decision. Please help? Thanks a lot, Reno Belgium -- View this message in context: http://www.nabble.com/getting-desperate-with-error-messages-tp15550447p15550447.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
