We’re about to start a livestock and wildlife census in the Serengeti ecosystem, and using a point photo count method (APS). This is the first time we’ll have used APS for anything other than wildebeest, and we’re working on managing a different (and much larger) set of data.
Post-flight processing includes geotagging the photos collected based on the tracklog. I’ve used Graphicconverter on the Mac but am trialling ExifTool which will work on Windows as well (though it’s command line).
Update 2016-08-27: see this Github Gist where I’m editing and keeping more notes.
To tag a folder of images, open Terminal on Mac/ Linux and enter:
… slightly differnt for the DOS (command) window in Windows:
- exiftool (or exiftool.exe) = the command
- tracklog/trk-2016-08-08-PM.gpx = tracklog;
- digpix/ = folder of images.
Geotagging 1,000 images took about 25 seconds just now. Looks pretty good – Graphicconverter shows the Google satellite image with the photo centre point next to the image, right.
You can see the shape of the old boma (overgrown) and the road. Nice!