Saturday, May 10, 2008
Geotagging Photo with GPS Location Information on a Macintosh
I've written and article of my experience with geotagging digital photos using a tiny and relatively inexpensive GPS logging device, any digital camera and a Macintosh. With these components, the location of each photograph can be embedded into the image file. A cool application: images can be displayed on maps in their relative locations.
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8 comments:
Thank you for this - very useful - it has the sort of clarity I need in a complicated field!
Unfortunately the ATP Photo Finder that you mention later doesn't work with my camera. The card is Ok but not the camera for some reason.
All I have to do now is find someone in the UK who imports the Wintec WBT-201 / G-Rays II
Mark, have you contacted the Photo Finder manufacturer directly to ask about compatibility with your camera? I wouldn't trust that their published compatibility list is up to date - there are just too many possible cameras out there. Their website suggests that the Photo Finder works with "most cameras which use JPEG type photo files."
Thank you Ellsworth for the idea.
I have asked the Photo Finder folk and it is now almost two weeks with no reply.
I have looked at one or two of the cameras that are said to work and notice that they are higher spec models than mine.
As I want to get on with geotagging while we have the good weather here in the UK I have settled for the Wintec WBT-201. My son in Australia has found it cheaply on eBay - even including the postage to the UK!
By the way, I tried to open the KMZ file that you included at the end of your very useful entry on geotagging but Google Earth gave the error message 'No result - empty KML file'.
Mark, I just tested the link to the "geodemo.kmz" file again and it looks OK. Look at the file you downloaded - it should contain 830,420 bytes of data. If it doesn't, something went awry with the download process. Post another comment here if you'd like to follow up. -E
I am puzzled Ellsworth,
The KMZ file I downloaded is 830,420 bytes in its zipper.
Unzipped it is a folder of 997,029 bytes.
This folder contains a file called doc.kml [181,384 bytes] and a folder of files [815,645 bytes] containing 21 .jpgs and 1 .png.
When I 'Get Info' the doc.kmz has a long list of dates and times headed:
Title: GeoDemo
Keywords: Images, 10.jpg, 19.jpg
Tracks, (null) #0, Path,
I have downloaded several times with the same result.
Mark, try again. I've uploaded the file again. I tried on multiple versions of Google Earth on multiple OSes, and some treated the file as corrupted. I've uploaded a new version of the .kmz which changed one test platform from failure to success. Let me know if you're successful.
Thanks Ellsworth - but go again.
I have OSX 10.5.4 and GE 4.3.7204.0836 (beta)
The doc.kml is 178,581 bytes this time.
What connect the kml document to the file of pictures? They seem quite separate.
M
Mark,
Ah. Here we go. I said I'd tried multiple OSes and Google Earth versions, but NOT browsers. Turns out Safari (v3.1.2 in my case) is treating the .kmz as a Zipped file (which it is, as you've seen) and automatically unZipping it.
Temporary solution: 1) Use another browser; or 2) in Safari, right-click (or ctrl-click) the "Google Earth KMZ File" link and select "Download Linked File As..." - this will create a file named "geodemo.kmz.zip." Rename this in the Finder to "geodemo.kmz" (the Finder will ask to confirm that you wish to change extensions - choose .kmz). Finally, that should now appear to be a Google Earth file, and automatically open as such.
p.s. Write me at the address at the bottom of this page :http://www.usefulbulk.com/vs/ValveSeals.html
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