Geotagging pictures from an iPhone GPS stream
Image by FlickrDelusions
Although the iPhone can natively geotag its own pictures, I am interested in being able to automate the geotagging of pictures taken on my DSLR, or any other camera.
This is a test of a possible work flow on a Windows PC to achieve this.
This picture above was taken on an iPhone but processed using the Photoshop mobile app, and emailed to my Gmail account. Along the way a lot of EXIF data is lost, including time taken and location data.
I’ll summarize the process used to add these back. The great thing about GeoSetter is that it will also work with a wide range of camera RAW formats, including Sony’s ARW.
Tools used:
- Instamapper – free GPS app for iPhone
- GeoSetter – free tagging software
- ExifTool – used by GeoSetter to modify EXIF data
1. Register with Instamapper and install their app on your iPhone; register your phone and launch the app; a GPS stream is captured and recorded in your Instamapper account. NB – the app only runs in the foreground on the iPhone and it uses a lot of battery power.
2. Take pictures
3. On Instamapper identify your data stream and select the start and end points for a track that includes the time when your pictures were taken. Go to Devices > Tracks and Export the desired track in GPX format
4. Upload pix to PC and launch GeoSetter. If the pictures have no time taken data, these can be added manually from within GeoSetter (double click on a picture to modify data)
5. Select pictures (navigate to folder) and select the track exported from Instamapper (CTRL-T > Open file)
6. Synchronize data (GTRL-G)
7. Save modified files (CTRL-S)
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