[GRASS-user] Error with i.colors.enhance on Windows Grass 7.21

Helmut Kudrnovsky hellik at web.de
Sat Jul 15 11:11:36 PDT 2017


andrew haywood wrote
> Hi All,
> 
> I am getting an error using i.colors.enhance on Windoes Grass 7.2.1 which
> crashes the session.
> 
> I get the following error in the command window.
> 
> Any advice would be greatly appreciated.
> 
> Cheers
> Andrew
> 
> ((Sat Jul 15 14:25:12 2017)
> 
> i.colors.enhance red=s1_vv_10 at PERMANENT green=s1_vh_10 at PERMANENT
> blue=s1_10_diff at PERMANENT
> Processing...
> Process Process-3:
> Traceback (most recent call last):
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\Python27\lib\multiprocessing\process.py", line 258, in
> _bootstrap
>     self.run()
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\Python27\lib\multiprocessing\process.py", line 114, in
> run
>     self._target(*self._args, **self._kwargs)
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\scripts\i.colors.enhance.py", line 105, in
> get_percentile_mp
>     result = get_percentile(map, percentiles)
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\scripts\i.colors.enhance.py", line 89, in
> get_percentile
>     percentiles=values, quiet=True)
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\etc\python\grass\script\core.py", line 461, in
> read_command
>     return handle_errors(returncode, stdout, args, kwargs)
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\etc\python\grass\script\core.py", line 329, in
> handle_errors
>     returncode=returncode)
> CalledModuleError: Module run None ['r.quantile', '--q',
> 'input=s1_10_diff at PERMANENT', 'percentiles=2,98'] ended with
> error
> Process ended with non-zero return code 255. See errors in
> the (error) output.
> Process Process-1:
> Traceback (most recent call last):
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\Python27\lib\multiprocessing\process.py", line 258, in
> _bootstrap
>     self.run()
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\Python27\lib\multiprocessing\process.py", line 114, in
> run
>     self._target(*self._args, **self._kwargs)
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\scripts\i.colors.enhance.py", line 105, in
> get_percentile_mp
>     result = get_percentile(map, percentiles)
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\scripts\i.colors.enhance.py", line 89, in
> get_percentile
>     percentiles=values, quiet=True)
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\etc\python\grass\script\core.py", line 461, in
> read_command
>     return handle_errors(returncode, stdout, args, kwargs)
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\etc\python\grass\script\core.py", line 329, in
> handle_errors
>     returncode=returncode)
> CalledModuleError: Module run None ['r.quantile', '--q',
> 'input=s1_vv_10 at PERMANENT', 'percentiles=2,98'] ended with
> error
> Process ended with non-zero return code 255. See errors in
> the (error) output.
> Process Process-2:
> Traceback (most recent call last):
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\Python27\lib\multiprocessing\process.py", line 258, in
> _bootstrap
>     self.run()
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\Python27\lib\multiprocessing\process.py", line 114, in
> run
>     self._target(*self._args, **self._kwargs)
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\scripts\i.colors.enhance.py", line 105, in
> get_percentile_mp
>     result = get_percentile(map, percentiles)
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\scripts\i.colors.enhance.py", line 89, in
> get_percentile
>     percentiles=values, quiet=True)
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\etc\python\grass\script\core.py", line 461, in
> read_command
>     return handle_errors(returncode, stdout, args, kwargs)
>   File "C:\Program Files (x86)\GRASS GIS
> 7.2.1\etc\python\grass\script\core.py", line 329, in
> handle_errors
>     returncode=returncode)
> CalledModuleError: Module run None ['r.quantile', '--q',
> 'input=s1_vh_10 at PERMANENT', 'percentiles=2,98'] ended with
> error
> Process ended with non-zero return code 255. See errors in
> the (error) output.

tested here with

System Info                                                                     
GRASS version: 7.2.1                                                            
GRASS SVN revision: r71013                                                      
Build date: 2017-05-03                                                          
Build platform: x86_64-w64-mingw32                                              
GDAL: 2.1.3                                                                     
PROJ.4: 4.9.3                                                                   
GEOS: 3.5.0                                                                     
SQLite: 3.17.0                                                                  
Python: 2.7.5                                                                   
wxPython: 2.8.12.1                                                              
Platform: Windows-8-6.2.9200 (OSGeo4W) 

GRASS version: 7.3.svn                                                          
GRASS SVN revision: r71251                                                      
Build date: 2017-07-10                                                          
Build platform: x86_64-w64-mingw32                                              
GDAL: 2.2.1                                                                     
PROJ.4: 4.9.3                                                                   
GEOS: 3.5.0                                                                     
SQLite: 3.17.0                                                                  
Python: 2.7.5                                                                   
wxPython: 2.8.12.1                                                              
Platform: Windows-8-6.2.9200 (OSGeo4W)

and the example from the manual:

https://grass.osgeo.org/grass73/manuals/i.colors.enhance.html

------
g.region raster=lsat7_2002_10 -p
i.colors.enhance blue=lsat7_2002_10 green=lsat7_2002_20 red=lsat7_2002_30
strength=95
------
it works as expected.

did you set your region to your images? could you test the manual example
with the NC sample data set?



-----
best regards
Helmut
--
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