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When I get back home there are a number of post-production issues that I need to face. I have got all my pictures either on hard drives that I've been copying to in the field or on a whole mess of media cards from my camera, and I have got to all of that stuff worked in to the post-production image-editing machine that I normally use which may be different than my laptop. Before I do any of that though, I need to think about geotagging. Earlier, you saw that I mentioned these little geotagging devices that can keep track of where you are and which you can use later to ensure that geotagging information is embedded in your images.
Your camera might have a geotagging facility built in. If that's the case, then you don't need to worry about probably anything else that I am going to talk about here. But if you are using one of these geologging devices, you are going to have some work to do. These work, as I mentioned before, by keeping a running log as you're moving around, assuming it's turned on, of where you are at and what time it is. When you get back home or get back to your computer you can use special software to sync that log file to your images. There are a number of different pieces of software that will take care of that syncing process for you.
You simply point them to the GPX file from your logging device and point them to the folder of images that you want geotagged and the software does the work of figuring out where you were when you shot each image. Sometimes you need to move the logging file from your logging device. Sometimes you can simply plug the logging device in, depending on whether your software knows how to talk about specific device. If you have a GPS device in your car, some kind of navigation device in your car, it's probably also keeping a GPX log, and you can very likely get that out of that device and into your computer and use it with your time-stamped files.
Now you might think, well, but I parked my car and then I go wandering off to take pictures. Yeah, it may not be accurate to within however far you were from the car, but it will at least give you kind of a regional idea of where you were when you shot particular image. Once I have got my images geotagged, there are some cool things I can do with them. I can, for example, look at them in a program like Aperture or iPhoto that will actually show me a map of where my images were shot. There are other applications that will show me a map with thumbnails all over it and so on and so forth. Because I have already imported that GPX file into my computer, there's more stuff that I can do with it. I can drop it into Google Earth and actually see where I was, where the path was when I was hiking or driving or whatnot.
So having this geo information is pretty fun. There is lot of stuff you can do with it and a lot of good reasons to have your images geotagged.
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