[Digikam-devel] [Bug 210226] Adding Geolocation to image causes Flickr to not recognize EXIF data

[Gerald Cox]

https://bugs.kde.org/show_bug.cgi?id=210226





--- Comment #33 from Gerald Cox <gbcox bzb us>  2009-10-17 17:29:11 ---
An additional note of clarification I didn't put in the note to Flickr which I
am sending now.  

You will notice that the tag information is showing correctly (including the
geo information for the corrected_geo.jpg file - it is not showing for the
corrected_geo.png file.

This gets a bit confusing, so I try to explain as follows:

1.  I downloaded the basepng.png file from Flickr ===>
http://www.flickr.com/photos/9550073@N03/4001381895/meta

2.  I removed the bad tag by:  exiv2 -M "del Exif.Image.0x0001" basepng.png
(yes, the file which is showing tag information on Flickr has the invalid tag
which the exiftool program does not like - but apparently Flickr doesn't care)

3.  I copied basepng.png to corrected_geo.png

4.  I added the location information to corrected_geo.png (note, adding the geo
information does not add the bad tag.  That appears to be introduced when using
the convert function.  I validated using exiftool and exiv2 that the tag
information was correct and included the location information.)

5.  I created corrected_geo.jpg by converting the corrected_geo.png file (with
the location information added in step 4) to a jpg file.  

6.  The corrected_geo.jpg now has an invalid tag.  I remove by issuing:
exiv2 -M "del Exif.Image.0x0001" corrected_geo.jpg

7.  I verify that the tag information can be seen using exiv2 and exiftool for
both files

8.  I upload corrected_geo.png to Flickr
http://www.flickr.com/photos/9550073@N03/4017660506/meta
====> The tag information is NOT showing <=====

9.  I upload corrected_geo.jpg to Flickr
http://www.flickr.com/photos/9550073@N03/4016899647/meta
====> The tag information IS showing (including the location information) <====

To recap:

1.  basepng.png on Flickr shows tag information correctly
2.  corrected_geo.png created from basepng.png with location information added
does not show tag information on Flickr
3.  corrected_geo.jpg created from corrected_geo.png SHOWS tag information
correctly

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