[GRASS-dev] [GRASS GIS] #3293: r.texture: very slow when size is increased

GRASS GIS trac at osgeo.org
Mon Feb 20 07:31:51 PST 2017


#3293: r.texture: very slow when size is increased
-----------------------------+-------------------------
 Reporter:  mlennert         |      Owner:  grass-dev@…
     Type:  enhancement      |     Status:  new
 Priority:  normal           |  Milestone:  7.4.0
Component:  Raster           |    Version:  svn-trunk
 Keywords:  r.texture speed  |        CPU:  Unspecified
 Platform:  Unspecified      |
-----------------------------+-------------------------
 Running


 {{{
 r.texture -a ortho_2001_t792_1m size=27 out=text_ortho_27
 }}}

 in the NC demo data set took the following time:


 {{{
 real    339m54.922s
 user    339m44.824s
 sys     0m5.464s
 }}}

 This seems excessively long, especially when the relevant literature cites
 common sizes of 20-50 (see #3210 for a discussion).

 It would be great if this could somehow be accelerated.

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/3293>
GRASS GIS <https://grass.osgeo.org>



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