[GRASS-dev] [GRASS GIS] #2535: Enhancement request - i.segment handle large images above 2 billion pixels

[GRASS GIS]

#2535: Enhancement request  - i.segment handle large images above 2 billion pixels
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 Reporter:  dnewcomb     |       Owner:  grass-dev@…              
     Type:  enhancement  |      Status:  new                      
 Priority:  normal       |   Milestone:  7.1.0                    
Component:  Default      |     Version:  svn-releasebranch70      
 Keywords:               |    Platform:  Linux                    
      Cpu:  Unspecified  |  
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 I have a 3.6 billion pixel RGB image. i.segment currently fails with the
 following error message.

 i.segment -d group=bsl_2012 at bsl_landcover
 output=bsl_2012allarea_diff20_min50 threshold=.20 minsize=50 memory=15000
 Loading input bands...
 Processing pass 1...
 ERROR: Invalid region id -2147480082

 Looking in createsegs.c and iseg.h , it appears that the region stats are
 int variables, topping out at about 2 billion.

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Ticket URL: <http://trac.osgeo.org/grass/ticket/2535>
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