Bug 282464

Algorithms are already implemented in Color Auto Correction tool. It already exist in Batch Queue Manager.

http://www.flickr.com/photos/digikam/6169041172/sizes/o/in/photostream/

It's not enough ?

Gilles Caulier

Op 21-09-11 11:43, Gilles Caulier schreef:
> https://bugs.kde.org/show_bug.cgi?id=282464
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> --- Comment #1 from Gilles Caulier<caulier gilles gmail com>   2011-09-21 09:43:52 ---
> Algorithms are already implemented in Color Auto Correction tool. It already
> exist in Batch Queue Manager.
>
> http://www.flickr.com/photos/digikam/6169041172/sizes/o/in/photostream/
>
> It's not enough ?
>
> Gilles Caulier
>
I can not say how much I love that function! But could it be that the 
software make a 80% right guess by itself and batch applies whatever is 
needed for a specific picture. It is still my first step in workflow, to 
do auto enhance in elements, that gives a realy good impression of the 
potencial of the pictures and a good starting point to work in digikam. 
If I had to do it by hand one picture after another... No problem when 
we had to deal with scanned negatives, but thoose days we  shoot such an 
awfull lot of pictures, we need automization.
Rinus

This should take more in account then auto color, it should imply at least auto level, auto curve and auto hue and saturation as well.

Rinus

At the moment I experiment with this workflow speedup

 I add to the name
 _LC for local contrast
 _AL for auto level
 _AE for auto exposure

 ideally we need to have 6 variations
img.png
img_AL.png
img_AE.png
img_LC.png
img_LC_AL.png
img_LC_AE.png

after that we have to visually sort it out, that´s not a big prize taken the
fact the the usabillity score is very high.
Picking the right one is so much quicker than manually editing. I am doing
up to 1000 pictures per week.

Comment from Gilles:
The right question is how to do it in GUI.
>
> - from Albumgui, there is no way to process filter as well with
> preview. Only kipi-plugins interface can do it, but these filter
> implementations are not shared with kipi-plugins (and we don't want do
> it)
>
> - from BQM, these filters are available for batch process. I think
> it's the right way to study a solution. The big problem is preview. It
> complicated to find right suitable solution, because to select right
> color enhancement filters, we need to judge manually.
>
> My proposal : create a "Magic" wrapper around these filters, which
> will select automaticallly the right one, accordingly with image
> content (typically to check histogram). Like this no need a gui to use
> right filters, and it can be Batch Processed
>
> This can be a subject for future GSoC students... If you like the
> idea, please fil this suggestion on the right file from KDE bugzilla.

My answer:
 I would be perfectly happy with an easy way out. Fead ONE batch to digikam and find next morning all variation to select manually from.

digikam takes list of PEF and generates

img.png
img_AL.png
img_AE.png
img_LC.png

digikam changes in the batch cue all img.PEF to img_LC.png and generates

img_LC_AL.png
img_LC_AE.png

I wake up and do the rest.

regards,
Rinus

Hi,

All advanced colors improvements algorithms are already implemented in GMic-Qt plugin for digiKam Image Editor. Take a look to the online documentation for details.

https://docs.digikam.org/en/image_editor/enhancement_tools.html#g-mic-qt-tool

Best

Gilles Caulier