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EXIF compare shows nine fraction for GPSLatitude and GPSLongitude and weird XMP-Exif

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  • EXIF compare shows nine fraction for GPSLatitude and GPSLongitude and weird XMP-Exif

    Hi Scooter Software,

    could you explain the following in EXIF data compare:

    GPSLatitudeRef ="N"
    GPSLatitude =48/1, 45/1, 19466/1681, 45/1, 19466/1681, 11/1, 19466/1681, 11/1, 44/1
    GPSLongitudeRef ="E"
    GPSLongitude =11/1, 44/1, 24/25, 44/1, 24/25, 833/1, 24/25, 833/1, 10/1

    I thought latitude and longitude are each encoded in three fractions: Degrees, Minutes and seconds. Why are there nine fractions?

    The numbers in the XMP section look also weird:
    <exif:GPSLatitude>48,45.193000N</exif:GPSLatitude>
    <exif:GPSLongitude>11,44.016000E</exif:GPSLongitude>

    A mix of degrees and minutes with decimals?

    Likely the position corresponds to 48°45'11.58" 11°44'00.96" resp. 48.7532167 11.73360

    Oliver

  • #2
    Addendum:

    That's the external text compare filter from Scooter (Helpers\EXIF\EXIF.bat) using jhead.exe.

    So the problem seems to be jhead.exe.

    BTW: I consider ExifTool from Phil Harvey the most robust way to extract image metadata, therefore I will make my own filter based on ExifTool.

    The advantage over the built-in image metadata view is the better comparison of long lines in the text compare view.

    Oliver

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    • #3
      Hello,

      BC4 is exposing the metadata as-is, which uses the / to designate the decimal. Here is a helpful article I found on the subject:
      https://stackoverflow.com/questions/...-gps-exif-data

      Does this help you parse your data?
      Aaron P Scooter Software

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      • #4
        I should add that BC 4.2's Picture Compare added a "Meta" panel, which exposes and compares this information.
        Aaron P Scooter Software

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        • #5
          Originally posted by Aaron View Post
          BC4 is exposing the metadata as-is, which uses the / to designate the decimal.
          are you talking about the filter using jhead? This created the wrong output seen in my OP.

          Now I use "exiftool.exe -g -ee %1 > %2" instead of the jhead call and it works very well. And ExifTool is capable reading most image formats on earth.

          Due to it's specifics, it takes a while to load.

          Oliver

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          • #6
            Hello,

            The Picture Compare's "Meta" comparison does not use the same conversion process. I would suggest updating to the latest 4.x release (all 4.x updates are free for 4.x users) and test it out. If you need to, you can download 4.2.2 from our Download page and run the setup.exe to "Create a Portable Install" instead of updating, which can create a self-contained, single directory install for testing.
            http://www.scootersoftware.com/download.php

            If you are still having trouble with your files, please post or email them to [email protected] (along with a link back to this forum thread for our reference) so we can take a look.
            Aaron P Scooter Software

            Comment


            • #7
              Hi Aaron,

              please see my posting above: "The advantage over the built-in image metadata view is the better comparison of long lines in the text compare view."

              I'm already using the latest version, and the new Picture Compare is great but has some disadvantages.

              Text Compare is much better for comparing long lines.

              Comparing keywords: If they are out of order, Picture Compare doesn't recognize identical keywords on both sides (but forced keyword sorting would not be an option).

              There should be an option to present keywords as a comma delimited string. A long list of keywords clutters the window.

              Oliver

              Comment


              • #8
                Hello,

                For specific requests, if you can email a pair of sample files and let us know the problem tags, this will help us determine how they are loading and help the developer look over any design questions. If you email us at [email protected] please include a link back to this forum thread
                Aaron P Scooter Software

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