[GRASS-dev] [GRASS GIS] #3931: i.topo.corr: handle integer input for correction

[GRASS GIS]

#3931: i.topo.corr: handle integer input for correction
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 Reporter:  sbl          |      Owner:  grass-dev@…
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:
Component:  Imagery      |    Version:  svn-trunk
 Keywords:  i.topo.corr  |        CPU:  All
 Platform:  All          |
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 i.topo.corr currently seems to only correct input maps of type DCELL or
 FCELL.

 It would be great if it could handle also integer maps as input. Maybe a
 quantization option, like in i.atcor would be a possibility to scale input
 from 1 - 10000 to 0.0 - 1.0 by applying the quantization factor (default
 to 1)?

 I am thinking of e.g. linked (r.external) Sentinel-2 data here, which
 comes with integer values...

 Ideally, also output should be saved as integer if input is integer,
 reapplying the quantization.

 That could save a processing step and would possibly allow to save some
 storage space.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3931>
GRASS GIS <https://grass.osgeo.org>