Use IPTC/XMP tags to display and index generation

[NicoPL]

Hello,

I wonder if we could access the metadata : IPTC tags and XMP tags to use them.
IPTC (extended to XMP a while ago) are very useful for:

• Author
• Location
• Copyright
• Keywords
• etc.

1st use:

• Display some of the metadata with the picture
• Example: Display the Copyright, the Title, the Author

2nd use:

• Use them for filtering
• Example: Display according to the Author, sorted by Location

3rd use:

• when generating the gallery, be able to filter on some of the metadata.
• Example: I host all of my pictures in folders in my server. But only want to display in the gallery the ones which have the keyword 'to_display' and the copyright 'Creative Commons'

The #198 is talking a bit about the Title stored in EXIF metadata. But EXIF is not made for that normally.

Cheers

[saimn]

It would be great indeed, but I'm not sure there is a Python library to read these tags ?

[NicoPL]

Found the IPTCInfo library https://pypi.python.org/pypi/IPTCInfo3/2.0.2 Seems great according to https://twigstechtips.blogspot.co.nz/2014/06/python-reading-exif-and-iptc-tags-from.html And the Py3Exiv2 https://launchpad.net/py3exiv2 From 2015, but maybe not as mature as the other one.

…

On 28 May 2017 at 10:11, Simon Conseil ***@***.***> wrote: It would be great indeed, but I'm not sure there is a Python library to read these tags ? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#249 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AV2aAwso4UWro9fsaKaAteia7uCwbgxZks5r-J97gaJpZM4NoRsO> .

[saimn]

Ok but sadly it's not so easy to find the good one: I knew pyexiv2, and the py3 version is still not pip- installable. And these two library are GPL licensed, which is not compatible with Sigal.
It would be great to have IPTC/XMP directly in Pillow, but I don't know if there are plans for this.

[NicoPL]

Right, I forgot about the licences... my mistake. I'll look at Pillow to see if anything is planned to include IPTC tags.

…

On 29 May 2017 at 09:59, Simon Conseil ***@***.***> wrote: Ok but sadly it's not so easy to find the good one: I knew pyexiv2, and the py3 version is still not pip- installable. And these two library are GPL licensed, which is not compatible with Sigal. It would be great to have IPTC/XMP directly in Pillow, but I don't know if there are plans for this. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#249 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AV2aAyv0PjD13yil2ZwMyoPgS47PdpRnks5r-e5fgaJpZM4NoRsO> .

[saimn]

No problem, it always tricky to find good libraries (maintained, compatible license, etc.).

[reagle]

This sounds related to my own request #62 .

[alcoralcor]

Would this feature be implemented one day ? I need a similar feature to generate gallery depending on image rating.

[saimn]

@alcoralcor - There is now some parsing of IPTC metadata (title, description) which are used for the images display. For other uses (e.g. filtering), it depends if someone wants to implement these kind of feature.