Image::ExifTool::Geotag(3) User Contributed Perl Documentation
NAME
Image::ExifTool::Geotag - Geotagging utility routines
SYNOPSIS
This module is used by Image::ExifTool
DESCRIPTION
This module loads GPS track logs, interpolates to determine position
based on time, and sets new GPS values for geotagging images.
Currently supported formats are GPX, NMEA RMC/GGA/GLL/GSA/ZDA, KML,
IGC, Garmin XML and TCX, Magellan PMGNTRK, Honeywell PTNTHPR, Bramor
gEO, Winplus Beacon text, GPS/IMU CSV, DJI CSV, ExifTool CSV and 3
different Google JSON formats.
Methods in this module should not be called directly. Instead, the
Geotag feature is accessed by writing the values of the ExifTool
Geotag, Geosync and Geotime tags (see the Extra Tags in the tag name
documentation).
NOTES
To take advantage of attitude information in the PTNTHPR NMEA sentence,
the user-defined tag GPSRoll, must be active.
AUTHOR
Copyright 2003-2025, Phil Harvey (philharvey66 at gmail.com)
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
REFERENCES
<http://www.topografix.com/GPX/1/1/>
<http://www.gpsinformation.org/dale/nmea.htm#GSA>
<http://code.google.com/apis/kml/documentation/kmlreference.html>
<http://www.fai.org/gliding/system/files/tech_spec_gnss.pdf>
ACKNOWLEDGEMENTS
Thanks to Lionel Genet for the ability to read IGC format track logs.
SEE ALSO
"Extra Tags" in Image::ExifTool::TagNames, Image::ExifTool(3pm)
perl v5.34.3 2025-07-25 Image::ExifTool::Geotag(3)
image-exiftool 13.330.0 - Generated Sun Aug 3 04:30:55 CDT 2025