Photo deduplication

[corsac-s]

Is your feature request related to a problem? Please describe.
Photos present twice in the Nextcloud are displayed twice. For example I auto-upload the photos from my phone in a specific folder, and I also export photos both from my digital camera and from my phone in specific folders (mounted as external storage but available locally) for specific events. A photo taken from my phone will then appear twice once indexed.

Describe the solution you'd like
Similar photos (metadata content or maybe file hash) are only displayed once in the timeline etc.

Describe alternatives you've considered
Not sure, honestly.

Additional context
This might be a bit similar to #537 but here the files are exactly the same.

[ChildLearningClub]

Are the file names identical, as well as the extension? And being uploaded to the same folder?

I had a similar issue with the Nextcloud app, uploading with lowercase .jpg extension and the same image exported from my phone through the PC having the same file name but with the uppercase .JPG extension. is this the same issue you’re experiencing?

[corsac-s]

In my case the photos are identical in content, have the same exif metadata, the same filename and same extension (and same case) and the same hash. They're not in the same folder.

In my case I know they are duplicate and I want to keep them that way, I just would like the indexing to only pick and display one of them.

[ChildLearningClub]

Okay, now I understand. So then there would also need to be away for you to choose, which one is displayed and which one is not. The .nomedia flag in the folders that you do not want indexed or visible is not what you are looking for?

[corsac-s]

I don't think it really matters which one is displayed (since they're identical).

.nomedia doesn't work: I do want all the folders (the one from my phone autoupload and the one from my manual uploads) to be indexed. I just would like identical photos not to be displayed twice on the timeline, explore etc.

[ChildLearningClub]

I see, thank you for clarifying. This would be a useful feature.

[ChildLearningClub]

I know this doesn’t completely solve your issue. But I guess until something like this does get implemented, if it’s not too much trouble you can separate The parent folders that each one goes into and then within the Memories settings only select the path to the ones that you want displayed.

Maybe you’re already doing this but just thought I would throw out the idea.

[corsac-s]

Thanks for the lead, but same that with .nomedia: I actually want photos from both folder to appear in the timeline, because autoupload has all my phone photos, and manual upload has all the camera photo + some phone photos and I want all the phone photos and all the camera photos (just not duplicates :)

[corsac-s]

Wow, that was fast

[pulsejet]

Just a note: this has the potential for false positives in certain cases, e.g. if just the metadata is different on both images is different then they might get incorrectly de-duplicated; which is why it'll default to false. These cases should be rare though.

[corsac-s]

Thanks! I don't really have the setup to build, test and confirm back. Are there artefacts from the github actions or something I can try?

[pulsejet]

Not really, you'll need to wait for the next release or build from source

[pulsejet]

Available with 7.2