Re: Still cant figure out face recognition under 8.7

Has anyone else experienced this behavior or any update on reproducing?  
I'm still stuck with no face recognition, which is one of the major 
features I was wanting from DigiKam.  If there's anything I can do to 
provide debug/logs/etc. please let me know.

-- Chad


On 7/11/2025 11:31 AM, Charlie Gorichanaz wrote:
> 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 <[email protected]> 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
>>     <[email protected]> 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
>>         > <[email protected]> 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
>>