Still cant figure out face recognition under 8.7

[Charlie Gorichanaz]

Wow, I actually am seeing the same behavior currently. For the record, Arch
linux cache files tell me I upgraded to 8.6.0 June 5, and then to 8.7.0
June 30. I don't think I did any face tagging work since June 30 until I
tried yesterday.

I previously had around 300 items in my "Unconfirmed" folder according to
the number after that word in parentheses, but none were showing up when I
clicked on it. I ran a "Recognize faces only" on a large chunk of my albums
with the quality slider bumped down from 7 to 6, hoping to catch a lot more
faces. The end result changed that tag to say "Unconfirmed (0)". Then I ran
a full "Scan all images" process on a section of my library I had not
processed yet. It then told me it found 282 faces, and my unknown tag
increased to now say "Unknown (3262)", but I still have "Unconfirmed (0)".

So maybe something about this broke in 8.7.0?!

—
Charlie Gorichanaz


On Fri, Jul 11, 2025 at 5:46 AM Chad Bersche <chad at bersche.com> wrote:

> Hi Charlie, et. al
>
> I have an Unconfirmed tag, but it has zero images in it, even after
> multiple "recognize faces" runs.
>
> Once I did the initial scan all images, the Unknown tag had ~6000 images
> in it.  I classified probably ~800 of those naming individuals correctly.
> I then re-ran the process as you indicated using "Recognize faces only" on
> all of my albums.  I watched it as it zoomed thru images, showing faces in
> the process of those in the image that it'd previously detected.  At the
> conclusion of the face detection, which took several minutes, it came back
> stating it scanned over 5,533 images and found ZERO faces.  Nothing moved
> from Unknown to Unconfirmed.  This is the same outcome every single time
> I've tried this.
>
> So, what now?  I've been tempted to try to re-create the training data,
> but haven't done so yet.
>
>   -- Chad
>
>
> On 7/10/2025 10:07 PM, Charlie Gorichanaz wrote:
>
> Chad,
>
> Do you have a tag called "Unconfirmed" alongside your "Unknown" tag? I
> believe that's where the detected-and-potentially-matched faces should end
> up, waiting for you to confirm or reject them.
>
> The doc describes this under the Face recognition section, "To start this
> process, go to the workflow tab, select *Recognize faces only*, and then
> click *Scan Collection For Faces*. The process will tag similar *detected*
> faces with the appropriate People tag from your tag tree, and the
> corresponding thumbnail will disappear from the *Unknown* tag selection.
> The thumbnail will appear in the *Unconfirmed* tag section and will be
> added to the suggested face tag section."
>
> —
> Charlie Gorichanaz
>
>
> On Thu, Jul 10, 2025 at 7:14 PM Chad A. Bersche <chad at bersche.com> wrote:
>
>> I've been baffled by this as well. I'm running on Windows 11, DigiKam
>> 8.7, and downloaded all the modules.  I let it grind thru a bunch of my
>> libraries overnight.  It resulted in about 6000 images in the Unknown
>> category.  I spent a a couple hours assigning names to people in that
>> list (sometimes up to 200-300 images).  I still have 5500 in the Unknown
>> bucket after classifying several hundred.
>>
>> After doing that, I went to run the "Recognize faces only" with
>> Accuracy=7, Search in set to "All Albums" and Tags unchecked. Then when
>> I do the "Scan collection for faces" nothing changes, and all the same
>> Unknown images stay in the same Unknown bucket.
>>
>> What am I doing wrong?  I had hoped that tagging a good number of faces
>> before doing the recognition would improve its accuracy, but it seems to
>> just want me to do all the assignment work, which I kinda don't want to
>> do.
>>
>> I'm using an external SQL database, with the database running on Linux,
>> because I do use the same image libraries across Windows clients.
>>
>> Thanks for any help/suggestions!
>>
>>    -- Chad
>>
>> On 7/8/2025 10:43 PM, Gilles Caulier wrote:
>> > Hi,
>> >
>> > You need to first detect faces on albums before you recognize them.
>> > After detecting, manually tag a few faces with names, at least a few
>> > ones are enough to teach the AI for an automated recognition.
>> >
>> > Finally, run a recognition process and look as AI recognizes similar
>> > faces already registered in the model but not yet tagged in the
>> > database.
>> >
>> > The workflow is explained in the online doc :
>> > https://docs.digikam.org/en/left_sidebar/people_view.html
>> <https://link.bersche.com/click/JrntK3g7lIuw.vrQMszT3ZBH1.tlPdogxGHMJ/IxL1-iQT/3s/docs.digikam.org/en/left_sidebar/people_view.html>
>> >
>> > Best
>> >
>> > Gilles Caulier
>> >
>> > Le mer. 9 juil. 2025 à 02:08, robert lindsay
>> > <robert.lindsay at gmail.com> a écrit :
>> >> This is under intel mac os and I installed the modules it asked for in
>> installation. Under face recognition their are boxes for rebuilding and
>> training data, but i can't find on to start face recognition on albums
>>
>
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