4 Replies Latest reply on Sep 24, 2010 9:51 AM by boardhead_

    Geotagging DNG files?

    Andrew_CP

      I can geo-tag jpg files without a problem using "Geotagger" with Google Earth, but can anyone suggest how to geo-tag DNG files? I cannot seem to create a metadata template from a jpg file that includes GPS data, as that would be one way to transfer the GPS data from the jpg to the DNG file if the DNG file cannot be directly updated with GPS metadata.

        • 1. Re: Geotagging DNG files?
          Greg Barnett Level 2

          I use two different apps to tag my DNG's, ImageIngester Pro and HoudahGeo. Normally, I use ImageIngester to tag them using a GPX track log during the initial ingestion process. I've also used HoudahGeo for the occasional times when I didn't have a track log or something went wrong with the GPS coordinates. Houdah did use Google Maps but has recently switched over to CloudMade.

           

          If you use Lightroom, there is an excellent plugin available from Jeffery Friedl that allows you to tag with a tracklog or Google Earth. http://regex.info/blog/lightroom-goodies/gps

           

          The reason you can't get a template to work is most likely because the GPS coordinates are stored in the EXIF data rather than the IPTC metadata. Phil Harvey's EXIFTool can be use to write directly into DNG's. http://www.sno.phy.queensu.ca/~phil/exiftool/ 

           

          Hope that helps.
          • 2. Re: Geotagging DNG files?
            Andrew_CP Level 1

            Many thanks for the quick response. Metadata templates in Bridge do only manage the IPTC records, so as you say, as the GPS tags are part of the EXIF record, the templates don't help.  ImageIngesterPro certainly works but a I really prefer to use the Adobe DNG Converter for the conversion process. HoudahGeo works well for the underwater images I work with, so you have given me a good solution!

             

            Since I posted, I also found http://geotag.sourceforge.net/ but the code is not far enough to recognise DNG files. Pity the Lightroom plugin isn't available for Bridge - would be handy!

            • 3. Re: Geotagging DNG files?
              Greg Barnett Level 2

              ImageIngester uses the DNG converter as a background process. So if you're worried about the integrity of the conversion, it's the real deal. If the converter detects any errors, II reports them.

               

              Here's another app (Mac only) that you may want to check out. http://www.earlyinnovations.com/photolinker/

              • 4. Re: Geotagging DNG files?
                boardhead_ Level 1

                Greg Barnett wrote:

                 

                ImageIngester uses the DNG converter as a background process. So if you're worried about the integrity of the conversion, it's the real deal. If the converter detects any errors, II reports them.

                 

                Here's another app (Mac only) that you may want to check out. http://www.earlyinnovations.com/photolinker/

                 

                ImageIngester actually uses ExifTool to do the geotagging, as do a number of other geotagging utilities, including HoudaGeo, PhotoLinker and geotag.sourceforge.net (all mentioned in this thread).

                 

                - Phil