[GRASS-dev] [GRASS GIS] #2048: i.pansharpen limited to 8-bit imagery

[GRASS GIS]

#2048: i.pansharpen limited to 8-bit imagery
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 Reporter:  nikosa                                                     |       Owner:  grass-dev@…              
     Type:  defect                                                     |      Status:  new                      
 Priority:  normal                                                     |   Milestone:  7.0.0                    
Component:  Imagery                                                    |     Version:  svn-trunk                
 Keywords:  i.pansharpen, sharpening, fusion, brovey, ihs, pca, 8-bit  |    Platform:  Unspecified              
      Cpu:  All                                                        |  
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Comment(by nikosa):

 Some (minor) things to improve i.pansharpen:

 * make "sharpen=brovey" progress notifications more informative, for
 example instead of solely "Histogram matching...", inform the user what is
 being histo-matched to what. I.e., "Matching histogram of Input_Map to
 histogram of Reference_Map"

 * it seems that the module (at least when "sharp=brovey" ?) does not like
 dashes in the input images names:


 {{{
 i.pansharpen sharpen=brovey ms1=M1BS-01_P001.1 ms2=M1BS-01_P001.2 ms3
 =M1BS-01_P001.3 pan=P1BS-01_P001 output_prefix=sharpen_brovey_01_P001

 Performing pan sharpening with hi res pan image: 1.000000
 Using Brovey algorithm

 Histogram matching...
  100%
  100%

 Histogram matching...
  100%
  100%

 Histogram matching...
  100%
  100%

 Calculating Brovey transformation...
 Invalid map <M1BS>
 Invalid map <01_P001.1>
 Parse error
 ERROR: parse error
 Invalid map <M1BS>
 Invalid map <01_P001.2>
 Parse error
 ERROR: parse error
 Invalid map <M1BS>
 Invalid map <01_P001.3>
 Parse error
 ERROR: parse error

 Assigning grey equalized color tables to output images...
 ERROR: Raster map <sharpen_brovey_01_P001_red> not found
 ERROR: Raster map <sharpen_brovey_01_P001_green> not found
 ERROR: Raster map <sharpen_brovey_01_P001_blue> not found

 The following pan-sharpened output maps have been generated:
 sharpen_brovey_01_P001_red
 sharpen_brovey_01_P001_green
 sharpen_brovey_01_P001_blue

 To visualize output, run: g.region -p rast=sharpen_brovey_01_P001.red
 d.rgb r=sharpen_brovey_01_P001_red g=sharpen_brovey_01_P001_green
 b=sharpen_brovey_01_P001_blue

 If desired, combine channels into a single RGB map with 'r.composite'.
 Channel colors can be rebalanced using i.landsat.rgb.
 WARNING: Unable to write history for <sharpen_brovey_01_P001_red>. Raster
          map <sharpen_brovey_01_P001_red> not found in current mapset.
 WARNING: Unable to write history for <sharpen_brovey_01_P001_green>.
 Raster
          map <sharpen_brovey_01_P001_green> not found in current mapset.
 WARNING: Unable to write history for <sharpen_brovey_01_P001_blue>. Raster
          map <sharpen_brovey_01_P001_blue> not found in current mapset.
 }}}

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2048#comment:11>
GRASS GIS <http://grass.osgeo.org>