Save comments and tags directly to photo's metadata

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The title pretty much says it all, but I will restate it and say that it would 
be nice if each photo had the comment saved as a metadata comment and the face 
tags saved as a metadata comment. Thanks for all your hard work.

Original issue reported on code.google.com by Supreme1...@gmail.com on 8 Sep 2010 at 8:09

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face tags saved as a metadata *tag.

Original comment by Supreme1...@gmail.com on 9 Sep 2010 at 3:04

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I thought about implementing this when I made my old patches. While this should 
be up to the user, I strongly suggest _not_ doing it. The reason is if/when the 
user re-shares these photos all the tags and comments will be sent to the third 
party thus raising privacy concerns.

Ideally the best option would be to create and follow a standard for placing 
photo metadata in the photo's folder such that it can be integrated into other 
applications such as photo editors, and even the electronic photo frame 
displays.

Original comment by bbzbryce on 14 Sep 2010 at 10:21

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[deleted comment]

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most photohosting sites do not save or display the images metadata. but beyond 
that, not being able to have the comments and tags displayed in my photo editor 
is a definite drawback of how it is now. Saving the metadata directly to the 
image would be the only solution afaik.

Original comment by Supreme1...@gmail.com on 19 Sep 2010 at 7:06

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I'm not too familiar with the jpeg metadata format(s) but I believe that there 
is just a basic "comment" field for text.  This would be suitable for the 
description of the photo but I believe it would be a misuse of the standard to 
include the comments/tags in that field.

I think it would be a good idea to include the description in the jpeg's 
metadata but that an external program (to import the extra metadata into your 
photo viewer of choice) is the best way to manage the tag/comment data.

The json file in the album folder holds all this info and can be parsed by a 
script to export the data.  I'm pretty proud of my HTML viewer and so I'm not 
too interested in writing the code to export the data to Picasa or iPhoto or 
whatever.

Thanks for the suggestion.  I think the photo description could (should?) be 
included in the jpeg metadata, but beyond that an export script for your 
specific photo viewer is needed.  I can confidently say that it will be January 
before I get around to working on any new features like this so don't hold your 
breath.

Original comment by tommy.mu...@gmail.com on 20 Sep 2010 at 7:05