[Digikam-devel] [Bug 265025] usability issues with tagging unknown faces

[Marcel Wiesweg]

https://bugs.kde.org/show_bug.cgi?id=265025





--- Comment #2 from Marcel Wiesweg <marcel wiesweg gmx de>  2011-02-01 20:46:59 ---
> (1) If there is more than one unknown face on a photo, if I enter one
> and then hit the Enter key, sometimes (but not always) it
> automatically advances to the next photo even before I have tagged the
> other unknown faces in that photo.

I see the problem. It requires a very small fix, I need to find out where.

> (2) There seems to be no way of starting to type without first having
> to click the mouse on the 'Who is this?' text.  Requiring the use of
> the mouse for every single photo makes the whole process MUCH slower -
> this could be the difference between 30 minutes and 2 hours if you
> have a lot of photos!  Please make this possible via the keyboard.

There are quite a few problems with the way this widget is implemented, one of
them you mention here. I am currently, though, a bit "uninspired" how to solve
all this convincingly.


> (3) After focusing on the 'Who is this?' text and typing a substring
> of the person's name, the dropdown which appears has several problems:
> 
>   (a) It's not wide enough so I only see 'Create New Tag "...'

That never was a problem for me, but I see now that the tag name is in German
the third of the four words, in English it's the last, so it is cut. Line break
is needed I guess.

>   (b) It actually displays 'Create New Tag "...' twice - once at the
>       top and once at the bottom, and due to the truncation it's not
>       clear if there is a good reason for having both.

One creates a toplevel tag, the other in "People/". Isnt it visible like this:
http://img406.imageshack.us/i/plasmadesktopqr2170.png/

> 
>   (c) Even if there is a good reason for having both, they should
>       always appear at the bottom, so that hitting Enter defaults to
>       applying the matching tag rather than creating a new one, since
>       it's far more common that you will want to do the former than
>       the latter.

Then creating a new tag will be a worst-case scenario in case there are many
preexisting tags with the same first letters. Creating a new tag should be
visible.

> 
>   (d) Clicking on an item in the dropdown merely makes the dropdown
>       vanish rather than selecting it.

There are three drop-downs:
- icon view, when typing
- preview view, when typing
- preview view, when clicking the arrow
Which are affected?

> (4) When viewing thumbnails in the album view, if I hover the mouse
>     over the thumbnail of a photo with unknown faces, it superimposes
>     three things over the text underneath thumbnail: a "Who is this?"
>     text entry field, and (I think) two icons; however the height of
>     all three is squashed to a fraction of what it should be, and I'm
>     not convinced there's enough room there to superimpose anything
>     usefully anyway.  Perhaps this behaviour should be disabled?

Should look like that:
http://img407.imageshack.us/i/plasmadesktoprf2170.png/

Which Qt/KDE version and style?

> 
> (5) When viewing thumbnails via the 'People' sidebar, it seems to
>     cleverly auto-zoom to the face region.  However this auto-zoom
>     doesn't always work right when there is more than one region.

There is only the face region directly from the database available as data, and
the image is then cropped when generating the thumbnail. I have not seen this
problem since the early days of face detection.

> 
> Hope this usability feedback is useful.  Thanks for listening!

Yes it is!

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