More face tag puzzlement

[Michael Miller]

Hi Tom,
Reset and clear all faces does exactly that: ALL faces, including manually created ones.

In 8.7.0 we introduced a new feature that saves when a face suggestion is rejected so the next time the face is run through the recognition engine (face classifier) the next best match is returned.  Clearing rejected face matches deletes this saved data so the face classifier will return the strongest match.  Clearing rejected face matches has no effect on Unknown, Unconfirmed, or Ignored faces.  It just deletes a “block list” fed to the face classifier during matching.

Cheers,
Mike

On May 13, 2025, at 8:35 PM, Tom Cunningham <TWCunningham627 at outlook.com> wrote:

In Face Engine Management under Maintenance, does “Reset and clear all faces and training” affect ALL face tags, including those done manually, or only those created by the engine? And how does “Clear rejected face matches” affect the Unconfirmed, Unknown, and Ignored groups?

From: Michael Miller <michael_miller at msn.com<mailto:michael_miller at msn.com>>
Sent: Tuesday, May 13, 2025 6:18 PM
To: Tom Cunningham <TWCunningham627 at outlook.com<mailto:TWCunningham627 at outlook.com>>
Cc: digikam-users at kde.org<mailto:digikam-users at kde.org>
Subject: Re: More face tag puzzlement

Hi Tom,
If both overlapping regions are confirmed, then the face engine shouldn’t suggest a name.  It won’t suggest a name for a confirmed or ignored face region.

I found the problem with overlap detection logic and the change has been committed. It should be in the next build.

Cheers,
Mike


On May 13, 2025, at 6:20 PM, Tom Cunningham <TWCunningham627 at outlook.com<mailto:TWCunningham627 at outlook.com>> wrote:

But if the regions overlap, and the names associated with the regions are the same, shouldn’t face recognition forego making a suggestion?

Take care,

Tom


From: Michael Miller <michael_miller at msn.com<mailto:michael_miller at msn.com>>
Sent: Tuesday, May 13, 2025 4:45 PM
To: Tom Cunningham <TWCunningham627 at outlook.com<mailto:TWCunningham627 at outlook.com>>
Cc: digikam-users at kde.org<mailto:digikam-users at kde.org>
Subject: Re: More face tag puzzlement

Hi Tom,
We increased the size of the face rectangle in 8.7.0.  It sounds like the overlap detection logic is working correctly.  I’ll take a look now.

Cheers,
Mike



On May 13, 2025, at 5:27 PM, Tom Cunningham <TWCunningham627 at outlook.com<mailto:TWCunningham627 at outlook.com>> wrote:

OK, now that I’ve painstakingly cleaned up my face tags (removed duplicates, “tree” faces, and “sidewalk” faces) and installed 8.7.0 pre-release on Windows 11, I tried another scan with detection and recognition set at 10 and Recognize Faces Only. It does a fine job of recognizing faces, and it wants me to confirm the faces it finds. However, my understanding was that if a face tag already exists for a face, it will skip that face. Instead, it simply puts another rectangle inside the existing one with a (generally correct) suggestion. If I do nothing and I am mousing over faces in a picture, the suggestion will pop up inside the existing rectangle even though the face is already identified. If I ignore the suggestion, then I’m assuming it will put an Ignored box inside the existing rectangle, which doesn’t seem quite right either.

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