g.gui.photo2image - GRASS GIS manual

NAME

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

KEYWORDS

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

SYNOPSIS

g.gui.photo2image

g.gui.photo2image --help

g.gui.photo2image group=name raster=name camera=string order=string extension=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: 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

DESCRIPTION
- Screenshot of g.gui.photo2image
For a detailed operation manual please read
SEE ALSO
AUTHORS

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

SOURCE CODE

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

Latest change: Monday Nov 18 17:41:12 2024 in commit: 9313630b839a8692b70e1bb56dafe26fa91b5a6b

NAME

KEYWORDS

SYNOPSIS

Flags:

Parameters:

Table of contents

DESCRIPTION

Screenshot of g.gui.photo2image

For a detailed operation manual please read

SEE ALSO

AUTHORS

SOURCE CODE