Comments on: Geotagging

By: Greg

Greg — Mon, 18 May 2009 16:29:22 +0000

Hrm… digiKam does appear to do the same thing, more-or-less. It comes up with slightly different numbers: asking why might be interesting.

Maybe what I really need to start is a page of programs that do this kind of thing.

By: Brian

Brian — Sat, 16 May 2009 23:54:46 +0000

This is awesome. Out of curiosity, did you happen to try the geo-tagging in digiKam? They claim to be able to merge images and GPS data. If they didn’t do something you wanted to do, maybe you should consider submitting your code to them…. You guys took great photos.

By: Greg

Greg — Sat, 16 May 2009 16:34:11 +0000

I was just about to say no to the iPhone thing, but I thought I’d better check. Much to my surprise, a couple pics I have from Kat’s iPhone are geotagged!

On closer inspection, they are about a kilometer away from the true phone location: I assume that means they used the cell tower for location instead of GPS. That makes sense: the GPS is probably kept off to save battery, and towers is all it had.

There may be a way to force the GPS on to increase the accuracy, but I don’t know what that is.

By: Dave Hughes

Dave Hughes — Sat, 16 May 2009 11:16:20 +0000

Oh yeah, I should mention my comment on the actual post. Cool read. It answers the question I had when I first saw that they were geotagged.

I was also wondering, since nobody has been able to answer my question thus far, does the iPhone geotag it’s photos? It has a camera and a GPS receiver, one would assume a logical pairing.

By: Dave Hughes

Dave Hughes — Sat, 16 May 2009 11:13:39 +0000

Now I see that the solution is to hack the GPS satellites and trick the GPS receiver into recording the payload of my choice, and there we have automatic insertion of EXIF exploits.