[GRASS-dev] [GRASS GIS] #3173: slow raster processing on r.external connected jpeg2000 layers

[GRASS GIS]

#3173: slow raster processing on r.external connected jpeg2000 layers
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 Reporter:  dnewcomb     |      Owner:  grass-dev@…
     Type:  defect       |     Status:  new
 Priority:  normal       |  Milestone:  7.2.0
Component:  Imagery      |    Version:  svn-releasebranch72
 Keywords:               |        CPU:  x86-64
 Platform:  MSWindows 7  |
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 Just did a quick NVDI  with Sentienl-2 bands downloaded from the Amazon
 cloud.  If I link to the B04.jp2 and B08.jp2 images via r.external it
 takes i.vi about 60 minutes to create an ndvi layer.

 If I import the layers ( 13 seconds each) and then run i.vi to create an
 ndvi layer,  it takes 1 minute 24 sec.

 This is with Wingrass 64 bit r69539

 Images used were downloaded from http://sentinel-s2-l1c.s3-website.eu-
 central-1.amazonaws.com/#tiles/18/S/UE/2015/7/26/0/

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3173>
GRASS GIS <https://grass.osgeo.org>