Region support

[bpatrik]

Hi,

I'm looking for a "one exif reader above all" for my home project https://github.com/bpatrik/pigallery2 (currently I'm using 4). Exifr looks really promising.

After a quick testing, I see that unfortunately it does not support regions:

(From: http://metapicz.com/)

It recoginses the Area, but does not attach the Area label (i.e.: the type of the area, e.g.: face and the name of the area eg.: Name of the person) to it:

This feature is needed to get multiple, tagged people (faces) from the photo.

Is there any plan adding this feature?

Thank you!

If helps, here is how I get this value using exifreader: https://github.com/bpatrik/pigallery2/blob/36ecbcbd3d5d3e659ddf20add456982dcb960d3d/src/backend/model/threading/MetadataLoader.ts#L221-L270

I used this photo for testing: https://github.com/bpatrik/pigallery2/blob/master/demo/images/IMG_6253.jpg

[MikeKovarik]

Hello.
First of all, I'm so sorry for responding with such a delay. I usually don't have enough free time. But then the last month has been insane and grotesque. One of the reasons was packing and moving to a new flat. And I wish that would've been the only thing that happened :D.

I finally managed to secure an hour or two to myself last night and took a look at it. Luckily the bug was easy to spot and fix. The problem turned out to be the format of XMP. Specifically: nested rdf:Description which I expected could only be used once as a container of the whole document. I'm not sure the XMP data in your photo is valid. I guess it must be, I just haven't come across this case during my research.

Anyway. It is fixed in the master right now and I'll try to release it sometime today or tomorrow.

[bpatrik]

Thank you for your work!

I'm using Adobe Lightroom to set these tags. I do not know if that is valid, but def. a well known app :)

[MikeKovarik]

Hello @bpatrik. I'm happy to announce v7.0.0. It fixes a bug in XMP which caused the missing region data.
The parsed output is different so it's a breaking change, hence the major version.
I'd be happy if you could try it out. Let me know if there's anything else.
And thanks for pointing this out. This shed a light on a whole lot of other potential hard-to-find problems.

[bpatrik]

Thank you very much. I did a quick test and the feature seems to work. Thanks again!

We haven't decided which lib to use, but your one looks really promising at the first look: bpatrik/pigallery2#277 (comment)