Re: [GRASS-user] Is mosaicing 24 bit images possible in Grass 6.2?

2008-07-04 Thread Moritz Lennert
On 03/07/08 15:39, Hamish wrote: You will lose information if you use r.composite, Just for my understanding: if you set levels to 256, you won't lose information, or ? It will just make displaying the result very slow. Moritz ___ grass-user

Re: [GRASS-user] Is mosaicing 24 bit images possible in Grass 6.2?

2008-07-04 Thread Glynn Clements
Moritz Lennert wrote: You will lose information if you use r.composite, Just for my understanding: if you set levels to 256, you won't lose information, or ? It will just make displaying the result very slow. Correct. That assumes that the bands are limited to 256 levels. If you

[GRASS-user] Is mosaicing 24 bit images possible in Grass 6.2?

2008-07-03 Thread Nagesh Bhatkar
Dear all, I intend to mosaic two 24 bit images in LAT LON location. I imported a 24 bit coloured PNG image in Grass using r.in.gdal in an x-y location. GRASS treated it as a combination of three 8 bit images, one for red, one for green, and one for blue and imported them as three separate maps.

Re: [GRASS-user] Is mosaicing 24 bit images possible in Grass 6.2?

2008-07-03 Thread Moritz Lennert
On 03/07/08 14:35, Nagesh Bhatkar wrote: Dear all, I intend to mosaic two 24 bit images in LAT LON location. I imported a 24 bit coloured PNG image in Grass using r.in.gdal in an x-y location. GRASS treated it as a combination of three 8 bit images, one for red, one for green, and one for

Re: [GRASS-user] Is mosaicing 24 bit images possible in Grass 6.2?

2008-07-03 Thread Maciej Sieczka
Hamish pisze: Nagesh wrote: Is there a way to mosaic 24 bit images and to output it as a single 24 bit image? To export a 24 bit image make a group of the 3 bands (i.group) and export the *group* using r.out.gdal (gdal_translate can do that also from outside GRASS, if you choose it's

Re: [GRASS-user] Is mosaicing 24 bit images possible in Grass 6.2?

2008-07-03 Thread Dylan Beaudette
On Thursday 03 July 2008, Maciej Sieczka wrote: Hamish pisze: Nagesh wrote: Is there a way to mosaic 24 bit images and to output it as a single 24 bit image? To export a 24 bit image make a group of the 3 bands (i.group) and export the *group* using r.out.gdal (gdal_translate can do that