[Digikam-devel] [Bug 286463] Face detection does nothing in digiKam 2.3.0 windows 7 using the "official" installer

[blacksmith_john_50 at yahoo.co.jp]

https://bugs.kde.org/show_bug.cgi?id=286463





--- Comment #2 from  <blacksmith_john_50 yahoo co jp>  2011-11-15 01:39:20 ---
So given your comments I shifted everything back to the original install
directory (without the "kde4").

I then started everything up and took another look at the "Scanning Faces"
dialog. I deselected my root album and it changed the option to say "Any
Albums" (surely this is the same thing... no?), checked the other settings so
thy matched what you had a ran it, it is now detecting faces (I realise the
recognition is not there yet but that's okay, this is a major step forward and
enough that'll probably be shifting everything to digiKam from the mishmash we
currently have!

So this bug is not that there is no face detection working but that the default
chosen for the user is broken. This default is a clearly obvious one that the
user will look at and go "Yup, that's right" and leave alone (users never play
with things in the real world - they're not geeks like us and are scared of the
computer, weird but I've seen it all too often *sigh*).

Having the default option to scan the root album without it cascading to
scanning all albums is a bad choice (especially as the users first ever view of
this feature (and definitely since there is no documentation - which dates from
version 1.2.0 of digiKam!!!)) I would strongly suggest that the default be the
same type as the tags default i.e. "Any albums" because surely this is the
default choice of face scanning isn't it? (At least for the average user going
forward now that you have a Windows installation that is hassle free and
working...)

It might well also be worth telling the user which albums were scanned once the
scan is finished... had I realised that my root album was the only one being
scanned I might have guessed that the choosing of that album did not cascade
(which is a pretty common way for these things to work though I can see reasons
not to; for example if you really do only want to scan that one album).

I realise there is also an assumption that maybe users will only have one
directory for all their images so this shouldn't be an issue... with the advent
of FaceBook that is a very bad assumption to make, most people get that putting
photos into separate albums is the the way things work so I would suggest that
the majority of people now do this leaving an empty root album/directory that
causes more confusion and suggestion of a bigger bug than is true.

Anyway, enough from me... if you are needing help with the face recognition and
can point me to a good set of instructions for getting to the repository for
that then I might be able to help (I've done some machine vision in the past
with robots).

Thank you for your help with my tiny support bug ;) and a huge thank you for
packaging this for Windows (I curse the day I got stuck on a Windows box
*sigh*)

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