Bug 269424

Summary:	Rebuild all thumbnails misses people (faces) thumbnails
Product:	[Applications] digikam	Reporter:	Rinus Bakker <sleeplessregulus>
Component:	Maintenance-Faces	Assignee:	Digikam Developers <digikam-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	caulier.gilles, mario.frank, metzpinguin, msylwester, sleeplessregulus
Priority:	NOR
Version:	4.12.0
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed In:	7.2.0
Sentry Crash Report:

Description Rinus Bakker 2011-03-25 23:11:03 UTC

Version:           2.0.0 (using KDE 4.6.1) 
OS:                Linux

After rebuild all thumbnails the people (faces) thumbnails have to rebuild after every relaunch. I want to browse all faces, a huge amount in my case, if I click on people it takes about 5 minutes before I am able to browse.

Reproducible: Always

Comment 1 Marcel Wiesweg 2011-03-26 14:53:04 UTC

The bug is that "Rebuild all thumbnails" does not care for rebuilding the face thumbnail, not more, is that right?
Because you say in the text that after a (one) rebuild operation, consecutively the face thumbnails will get rebuilt rebuilt after every (all from now on) digikam restarts.

Comment 2 Rinus Bakker 2011-03-26 15:23:02 UTC

Exactly, it's even worse, it happens everytime I click on "people" and 
want to scroll downwards, very unlike to when I am in albums.
Op 26-3-2011 14:53, Marcel Wiesweg schreef:
> https://bugs.kde.org/show_bug.cgi?id=269424
>
>
>
>
>
> --- Comment #1 from Marcel Wiesweg<marcel wiesweg gmx de>   2011-03-26 14:53:04 ---
> The bug is that "Rebuild all thumbnails" does not care for rebuilding the face
> thumbnail, not more, is that right?
> Because you say in the text that after a (one) rebuild operation, consecutively
> the face thumbnails will get rebuilt rebuilt after every (all from now on)
> digikam restarts.
>

Comment 3 Marcel Wiesweg 2011-03-28 22:17:41 UTC

This is a bug. Normally, the thumbnail is stored already on creation of the face, so there shouldnt be any need to recreate it (which is costly, we cannot load scaled-down versions of the image if the face is small)

Comment 4 caulier.gilles 2011-12-14 13:55:02 UTC

Rinus,

It still valid using digiKam 2.4 ?

Gilles Caulier

Comment 5 caulier.gilles 2014-08-24 12:18:14 UTC

Rinus,

Can you check with last digiKam 4.2.0 if this entry still valid ?

Thanks in advance.

Gilles Caulier

Comment 6 Michal Sylwester 2015-08-15 23:04:36 UTC

Seems to be still valid with digikam 4.12.0

Comment 7 Mario Frank 2017-01-17 09:47:08 UTC

(In reply to Michal Sylwester from comment #6)
> Seems to be still valid with digikam 4.12.0

Is this still valid with current release (5.4.0)?

Comment 8 caulier.gilles 2017-01-17 10:40:28 UTC

Mario,

Yes, i think. The Maintenance Thumbnail tool only handle full image size. It do not take a care about face tags.

Gilles

Comment 9 caulier.gilles 2019-12-23 15:06:00 UTC

7.0.0-beta1 is out with new Face Recognition algorithm based on Deep
Learning/Neural Network API from OpenCV

https://download.kde.org/unstable/digikam/

Please test and give us a feedback

Thanks in advance
Gilles Caulier

Comment 10 caulier.gilles 2020-08-02 21:42:15 UTC

digiKam 7.0.0 stable release is now published:

https://www.digikam.org/news/2020-07-19-7.0.0_release_announcement/

We need a fresh feedback on this file using this version.

Best regards

Gilles Caulier

Comment 11 Maik Qualmann 2021-01-19 06:52:34 UTC

This problem cannot be reproduced in digiKam-7.2.0-RC. Face thumbnails are only recreated once and are then available again in the database.