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

Authors

       Markus Metz
       BasedontheGeorectifier(GRASS6.4.0) by Michael Barton
       Martin Landa, Czech Technical University in Prague, Czech Republic

Description

       This module is based on g.gui.gcp, the GCP manager of GRASS GIS.  It is part of i.ortho.photo 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 (i.group), a camera description file
       (i.ortho.target)  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 project imagery60:
       g.gui.photo2image group=aerial@PERMANENT raster=gs13.1@PERMANENT camera=gscamera order=2 extension=try --o

   Screenshotofg.gui.photo2imageFigure:Screenshotofg.gui.photo2image

For A Detailed Operation Manual Please Read

wxGUI,wxGUIcomponents

       See also video tutorials on GRASS Wiki.

Keywords

       imagery, GUI, aerial, photo, georectification, geometry, GCP

Name

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

See Also

i.ortho.photo,i.group,i.ortho.camera,i.ortho.target,i.rectify,m.transform,v.rectify

Source Code

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

       Accessed: Friday Apr 04 01:21:41 2025

       Main index | GUI index | Topics index | Keywords index | Graphical index | Full index

       © 2003-2025 GRASS Development Team, GRASS GIS 8.4.1 Reference Manual

GRASS 8.4.1                                                                            g.gui.photo2image(1grass)

Synopsis

g.gui.photo2imageg.gui.photo2image--helpg.gui.photo2imagegroup=nameraster=namecamera=stringorder=stringextension=string   [--help]
       [--verbose]  [--quiet]  [--ui]

   Flags:--help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   Parameters: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 i.ortho.camera)
           The name of the camera (generated in i.ortho.camera)

       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: 1extension=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

See Also