Image::ExifTool::Geotag(3pm)

Image::ExifTool::Geotag3pm

Geotagging utility routines

Usage

This module is used by Image::ExifTool

Overview

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/Columbus/ExifTool CSV format 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.

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.

Releases

9 releases since Debian 6.0 (Squeeze); the text changed 8 times.

  1. 6.0
  2. 7
  3. 8
  4. 9
  5. 10
  6. 11
  7. 12
  8. 13
  9. Arch

Author

Copyright 2003-2026, 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.

From perl-image-exiftool 13.55-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.