[Digikam-devel] Re: Status of face detection

["Jens Müller"]

> > I started playing with face detecting and want to share my results.
> First I
> > struggle about missing haarcascades. No messages about this, only
> konsole
> > debug out catch errors up. Kubuntus opencv packages do not include
> > haarcascade files, would'nt it be better to host them inside libkface as
> a
> > independend optimized set? 
> 
> I dont want to duplicate these files, they are really part of OpenCV and 
> packagers of digikam must then list them as required dependencies. They
> are 
> also pretty large (~1MB each, we use 7 or 8) so not easily included in any
> package.
> Nonetheless, I agree that an error message from digikam would be helpful.

Yes size matters (and this only for opencv duplicates), a messagebox will be fine.


> > Then I scanned a album, the progress dialog
> > only show that moving slider, you don't get a impression how long the
> hole
> > process will take. After finishing this dialog stays while the slider
> > moves endless. I think the dialog should close or present a short
> summary
> > about found faces (better).
> 
> Believe it or not, for me there is a percentage number and when it's at
> 100%, 
> it's not moving. Sven is also reporting the behavior you are describing. I
> dont know why.
>  The dialog stays and you have to click Close, that's at least consistent
> with 
> some other tools in digikam.

The moving slider irritated me. If it is a real progress bar finishing at 100% it is fine, too. Perhaps there could be a text like 'Found %1 faces in %2 images.'?


> > When you set names to face regions and start
> > typing a list of tags is presented, but when you click with the mouse on
> a
> > tag item which is not the top one the first in the list is selected
> > instead of the clicked one. 
> 
> Is this in the thumbnail view or in the preview view? (though the code is
> very 
> similar)

In the preview view, the transparant face tag combobox shows a list of possible tags as you type. When you type some chars and the see the right tag in that list, clicking on it will not select it when it is not the first in the list.


> 
> > When a face tag is assigned to a region, it
> > was impossible for me to change that tag to another person. Do I miss
> > something? I think clicking ore double clicking on the region or face
> tag
> > should open the editor again. 
> 
> In the preview view, isnt it?
> That's also something I cannot reproduce.
> For me, there is a label with the assigned name, and when I click on that 
> label, the editor is opened again.

Unfortunately for me not. Not by single click, not by double click, not on the presented transparent face tag, nor the presented face region.


> 
> > When I click on on a face tag in the tag
> > tree, a page shows up where albums and images are shown. But for me only
> > one image per person is shown, although there are more images with
> tagged
> > faces of that person. Should'nt there be a list of all tagged images?
> 
> Once confirmed, a face tag is just like any other tag, so in the Tag left
> side 
> bar panel, you will see all images where the name was assigned.
> The "People" left side bar widget is different, here you get one thumbnail
> for 
> each face (multiple per image, if necessary), you get unconfirmed results,
> and 
> you get the face as thumbnail, not the whole picture.
> That's how it works for me here.

This is how it works for me, too. I assumed the the people tag list on the left work that way, too.

Jens

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