[digiKam-users] 7.2 (beta) Face detection feedback

[bryan at gillson.net]

A few comments and questions on 7.2 beta and face detection:

 

1.	I'm still suffering from occasional crashes, though they are more
intermittent than 7.1. I know the Digikam team is already tracking these
down as a priority, but let me know if logs would help.
2.	A suggestion for a UX change: After face detection, I multiselect
thumbnails and confirm "unconfirmed" faces and manually tag others.
Selecting the proper name causes the selected thumbnails to disappear, then
reappear, then disappear (one at a time) as they're processed. This shifts
the remaining thumbnails around, making it difficult to multiselect another
set of faces without error. I would prefer that faces "in process" simply
stay hidden after selecting the name, and only appears again in the
appropriate category (either "Confirmed" or in the proper People tag). This
way I could continue "queueing up" new faces to process while KD works on
the others.
3.	The face recognition workflow on a NAS-based setup really reinforces
the need to separate thumbs.db into a local database. Performance is abysmal
when refreshing thumbnails, and makes working over even a gigabit LAN very
frustrating. Bug 297299 (https://bugs.kde.org/show_bug.cgi?id=297922) covers
this feature request. Is it in the plan to address this?
4.	While on the topic of performance, are any bottlenecks being
investigated to increase speed when using a network DB (MariaDB)? Neither
CPU, network, database, nor disk statistics show high use during the
recognition process. I would expect the database and network to be getting
hit hard when retrieving pictures, then seeing the RAM and CPU spike during
recognition. Instead, everything just goes at a trickle.
5.	Finally, is there any documentation on how to optimize the Detection
process? What is more effective: confirming faces in the Unconfirmed tag?
Correcting incorrectly recognized faces in a specific People tag? Adding new
pics to known faces that are in Unknown, to better train the AI? Is it
better to tag many samples of a person's face, or a few? How frequently
should I re-run "Recognize faces" after adding/correcting/confirming faces?
Given the significant time investment in tagging and recognizing, guidance
on the above could save dozens of hours of effort.

 

I love Digikam, and truly appreciate all the effort. Please don't take the
above as criticism or complaints, but questions/suggestions to make a great
product better.

 

Thank you.

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