Hi,
I am using r.in.tiff to import a 10km x 10km 1m satellite image into
GRASS, but it complains that it does not support the 16 bit sample. I am
using GRASS 4.3. Has this changed in 5.0, and if not does anybody know
how I can get around this problem.
John Preston
International Centre for Environmental and Nuclear Sciences
University of the West Indies
Mona Campus
Kingston, JAMAICA
On Thu, Mar 08, 2001 at 04:15:23PM -0500, John Preston wrote:
Hi,
I am using r.in.tiff to import a 10km x 10km 1m satellite image into
GRASS, but it complains that it does not support the 16 bit sample. I am
using GRASS 4.3. Has this changed in 5.0, and if not does anybody know
how I can get around this problem.
No, that limitation is still in GRASS 5.0 r.in.tiff code. However, I
don't know, but maybe r.in.gdal will handle this. I know it has support
for many more esoteric features (complex numbers for instance). I'd
assume the color rule would have to be grayscale/per band since GRASS's
color rules won't allow 16bit/band values.
--
Eric G. Miller <egm2@jps.net>
On Thu, Mar 08, 2001 at 06:29:48PM -0800, Eric G. Miller wrote:
On Thu, Mar 08, 2001 at 04:15:23PM -0500, John Preston wrote:
> Hi,
> I am using r.in.tiff to import a 10km x 10km 1m satellite image into
> GRASS, but it complains that it does not support the 16 bit sample. I am
> using GRASS 4.3. Has this changed in 5.0, and if not does anybody know
> how I can get around this problem.No, that limitation is still in GRASS 5.0 r.in.tiff code. However, I
don't know, but maybe r.in.gdal will handle this. I know it has support
for many more esoteric features (complex numbers for instance). I'd
assume the color rule would have to be grayscale/per band since GRASS's
color rules won't allow 16bit/band values.
Hi,
from the r.in.gdal man page:
"Data Types
Most GDAL data types are supported. Float32 and Float64 type bands are
translated as GRASS floating point cells (but not double precision ...
this could be added if needed), and most other types are translated as
GRASS integer cells. This includes 16bit integer data sources. Complex
(some SAR signal data formats) data bands are translated to two floating
point cell layers (*.real and *.imaginary).
"
http://www.geog.uni-hannover.de/grass/gdp/html_grass5/html/r.in.gdal.html
Does this answer the question?
Regards
Markus Neteler