I have a Geoeye 1 satellite photo that's a 4-band multispectral B,G,R,NIR, 11 bit raster.
Ultimately I want to publish this raster as a web service (using Mapserver). I opened up the raster in Qgis just to look at it and I noticed that it took an unusually long time to load it, which does not bode well for an quick and responsive web service.
So I concluded that it would be good if the raster could be transformed into a "normal" RGB raster.
Is it possible to process a RGB+NIR raster into a "standard" RGB raster? How can this be done?
Here's what gdalinfo reports on the bands of the raster http://pastebin.com/1bQ9Lh16 As you can see there's a fourth band with no color intepretation, yet if I would just remove this band I end up with a quite blue image. So somehow it seems to contribute to the visual appearance nevertheless.