[GRASS-dev] Re: [GRASS GIS] #774: i.rgb.his, i.his.rgb, d.his support for >8 bit

GRASS GIS trac at osgeo.org
Mon Oct 5 04:01:00 EDT 2009

#774: i.rgb.his, i.his.rgb, d.his support for >8 bit
  Reporter:  hamish       |       Owner:  grass-dev at lists.osgeo.org  
      Type:  enhancement  |      Status:  new                        
  Priority:  normal       |   Milestone:  6.5.0                      
 Component:  Raster       |     Version:  svn-develbranch6           
Resolution:               |    Keywords:  i.rgb.his, i.his.rgb, d.his
  Platform:  All          |         Cpu:  All                        
Comment (by hamish):

 for d.his main.c we can probably pass HIS_to_RGB() something like
 (int)(value_[atcol]/pow(2, bitdepth-8)) to rescale >8bit to 0,255.

  opt_bit_depth->options = "8-16";

 (we can only set the color to 8-bit per channel, right? so we have to
 degrade at some point.. might as well be here)


Ticket URL: <https://trac.osgeo.org/grass/ticket/774#comment:1>
GRASS GIS <http://grass.osgeo.org>

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