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Geotagging Your Photos

George Skarbek October 2009. Geotagging Your Photos. What is Geotagging ?. In a photographic context, geotagging is the process of adding the GPS co-ordinates metadata to photos. This data usually consists of GPS latitude and longitude coordinates but can also include altitude. .

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Geotagging Your Photos

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  1. George Skarbek October 2009 Geotagging Your Photos

  2. What is Geotagging? • In a photographic context, geotagging is the process of adding the GPS co-ordinates metadata to photos. This data usually consists of GPS latitude and longitude coordinates but can also include altitude.

  3. Why Geotag your photos? • To display on the Web in Google Earth or Panoramio • To record the image location for your own travel records • Can also be used by Commerce and Government agencies • Has applications in Real Estate use

  4. How to Geotag your photos • You can do this manually by using maps but this is very time consuming and is not very accurate • Automatically Geotag if you have a camera with built-in GPS receiver • Use the GPS log and software from a GPS unit. By matching the timestamp of the photo with the GPS tracks to the closest timestamp

  5. Hardware required - Continued • Many car GPS units can export the log file • Handheld GPS units made by Garmin etc • There are a number of dedicated GPS units for Geotagging purpose. Such as Qstarz http://www.qstarz.com AMOD http://www.semsons.com/amaggpsdalos.html ATP Photo Finder http://photofinder.atpinc.com GiSTEQ GPShttp://www.gisteq.com/PhotoTrackr/PhotoTrackrDPL700.php

  6. Hardware required • The small dedicated units start at about $100 • Small up-market units start at $150. (Qstarz BT-Q1000) • For SLRs there are hot shoe attachments starting at about $150

  7. Synchronising Software • With all the Geotagging hardware, the Synchronising Software is supplied • If you use the car GPS or other hand-held devices you will require additional (free) software such as: • GPicSync http://code.google.com/p/gpicsync • JetPhoto Studio www.jetphotosoft.com/web/home

  8. Posting your images • There are a number of sites that make it easy for you to upload your trip such as: • Google Earth: http://earth.google.com • Panoramio: http://www.panoramio.com • Everytrail: http://www.everytrail.com • JetPhotos: http://www.jetphotosoft.com • Picasa: http://picasa.google.com

  9. Possible problems • Converting GPS track formats GPicSync only reads GPX and NMEA formats and you may need to convert the format. There is much free software from places such as: GPS Babel http://www.gpsbabel.org GPS File Format Converter • Timestamp synchronizing problem All GPS units record in UTC (GMT) and you will need to add a time offset. This is +10 or +11 hours and depends on Daylight Saving • The clock in your camera is not set correctly

  10. Live demo That’s all for PowerPoint. Now for the live demo…

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