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       g.gui.photo2image  - Corrects scanning distortions of a paper photo.


       imagery, aerial, photo, GUI


       g.gui.photo2image --help
       g.gui.photo2image   group=name  raster=name  camera=string  order=string  extension=string
       [--help]  [--verbose]  [--quiet]  [--ui]

           Print usage summary

           Verbose module output

           Quiet module output

           Force launching GUI dialog

       group=name [required]
           Name of input imagery group

       raster=name [required]
           Name of input raster map

       camera=string [required]
           The name of the camera (generated in
           The name of the camera (generated in

       order=string [required]
           The rectification order (no of Fiducial=4 -> order=1, no of Fiducial=8 -> order=2)
           The rectification order (no of Fiducial=4 -> order=1, no of Fiducial=8 -> order=2)
           Default: 1

       extension=string [required]
           The name of the output files extension (used in i.rectify)
           The name of the output files extension (used in i.rectify)
           Default: _ip2i_out


       This module is based on  g.gui.gcp,  the  GCP  manager  of  GRASS  GIS.   It  is  part  of suite.

       The  aim of this module is to give absolute location values to the fiducial points present
       (in number of 4 or 8) in a scanned aerial photo.

       This is necessary as (manual) scanning introduces distortions, rotations and also may  not
       be  limited to scan the boundary of the photo itself. It is thus necessary to give to each
       fiducial the exact coordinates in mm  as  given  by  the  aerial  photographic  instrument
       design, which is unique per camera.

       This  module  requires you to have made a group with your aerial photo (, a camera
       description  file  (  and  use  them  to  launch  the  module.   Additional
       requirements  are  the  order  of  rectification  (1  if  no of Fiducials is 4, 2 if no of
       Fiducials is 8) and an extension file (if not given, defaults to \$filename_ip2i_out)

       An example for Location imagery60:
       g.gui.photo2image group=aerial@PERMANENT raster=gs13.1@PERMANENT camera=gscamera order=2 extension=try --o

   Screenshot of g.gui.photo2image
       Figure: Screenshot of g.gui.photo2image

For a detailed operation manual please read

       wxGUI components

       See also video tutorials on GRASS Wiki.

SEE ALSO,,,, i.rectify, m.transform, v.rectify


       Markus Metz
       Based on the Georectifier (GRASS 6.4.0) by Michael Barton
       Martin Landa, Czech Technical University in Prague, Czech Republic

       $Date: 2018-01-10 18:01:59 +0100 (Wed, 10 Jan 2018) $


       Available at: wxGUI GCP Manager for photo to image registration source code (history)

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       © 2003-2019 GRASS Development Team, GRASS GIS 7.6.0 Reference Manual