https://bugs.kde.org/show_bug.cgi?id=518026

--- Comment #2 from Ondrej Zizka <[email protected]> ---
Mike, great project to (re-)join. It is extremely useful and very well
designed. I would join too if I had enough C++ skills.

In the mean time, I have finished my own clustering in Kotlin. I can share the
source code. 

In short, it adds 1 table to the DigiKam DB for the clusters, and then runs an
algorithm revolving around centroids with 2 or more passes and average vector
recomputation until the clusters "look right". It works spectacularly.

But the need to stop DigiKam, copy the DB (just to be safe), run the
clustering, then apply it to DigiKam's DB (by creating new artificial People
tags under People/clusters/cluster1234) is quite impractical, and also it seems
that DigiKam faces rescan somehow changes the tags from People to just normal
tags. 
So, having this directly in DigiKam would be really very helpful, and it would
speed up work with faces a lot and improve dealing with false negatives which
appear now in DigiKam - one could bump up the Accuracy of the face scan, and
handle the "Unknown" people by clusters, so that they would not appear in other
People tags as candidates.

Thanks a lot to all for the work on this project.

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