[Bug 280619] New: colour automatic correction doesn't work if an image was opened in editor for a longer time

https://bugs.kde.org/show_bug.cgi?id=280619

           Summary: colour automatic correction doesn't work if an image
                    was opened in editor for a longer time
           Product: digikam
           Version: 2.0.0
          Platform: Unlisted Binaries
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Image Editor
        AssignedTo: [hidden email]
        ReportedBy: [hidden email]


Version:           2.0.0 (using KDE 4.6.2)
OS:                Linux

I've observed this several times now, so I think it's a bug. I open the image
in the image editor and do some other work. After a few minutes (maybe 5), I
want to use the "colour/auto correction" (don't know the exact English name,
since I use the German version, there it is "Farbe/Automatische Korrektur"),
but it won't work. The progress bar is shown, but sits at 0%. I can cancel the
job, but it won't change if I start it again. Other editing operations seem
possible, as fas as I can see.

Reproducible: Didn't try

Steps to Reproduce:
Open an image in the image editor
wait for a few minutes
choose "colour" from the menu
choose the first item, something like "automatic correction"


Actual Results:  
the progress bar in the lower left corner sits at 0%, nothing happens.

Expected Results:  
The correction should proceed, so the progress bar also should show the
progress of the operation.

I only tried this with jpg images. I have no idea if this happens also with
other image types.

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[Gilles Caulier-4]

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Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]
          Component|Image Editor                |Auto-Colors
            Product|digikam                     |digikamimageplugins




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[Gilles Caulier-4]

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--- Comment #1 from Gilles Caulier <caulier gilles gmail com>  2011-08-23 07:23:53 ---
Dysfunction is reproducible with another editor tool ?

Note : I cannot reproduce it...

Gilles Caulier

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--- Comment #2 from Martin Senftleben <linux drmartinus de>  2011-08-23 07:30:27 ---
What other editor tool do you mean? It happens only in digikam's editor, and
only with the colour auto-correction. Even after approximately 1 minute I can
not use that function. all other editing functions work fine.
BTW: the cursor turns into an hour glass or whatever while it does the job.
After it got stuck once, the cursor doesn't return to its normal shape again,
it remains the hour glass, whatever I do in digikam.

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--- Comment #3 from Gilles Caulier <caulier gilles gmail com>  2011-08-23 07:35:20 ---
All editor functions are "tools", using same framework. Ex, White Balance, B&W
converter, etc...

Do you mean that tool is busy and compute ? What's the CPU idle ?

Gilles Caulier

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--- Comment #4 from Martin Senftleben <linux drmartinus de>  2011-08-23 15:46:48 ---
No, only Digikam is busy, or shows it is busy. But it doesn't really slow down
anything. I can close the editor, open it again, and do the colour correction.
Only the cursour shows the hour glass or the like, and not the arrow pointer.
But only when it's over anything from digikam.
Other tools, as said, work fine, it's only the colour/auto correction.

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[Marcel Wiesweg]

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--- Comment #5 from Marcel Wiesweg <marcel wiesweg gmx de>  2011-09-11 14:56:45 ---
I can confirm the bug, I managed to reproduce once. A waiting time is needed
seemingly so that all threads in the thread pool have exited (should be 30s).
This indicates that under rarely occurring conditions, events may be delivered
in unexpected order or whatever. Couldnt reliably reproduce since then.

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--- Comment #6 from Martin Senftleben <linux drmartinus de>  2011-09-12 09:45:58 ---
I have this issue still in 2.1.0, and it happensvery regular, or better:
there's no exception.
I wonder what else it could be if you can't really reproduce it. It happens
only to the color-correction tool, everything else works, and if I open another
image from the thumbnail list, it works again fine.
I've created a video about it, that can be downloaded here (5 MB):
http://www.drmartinus.de/images/test-0000.mpeg

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--- Comment #7 from Marcel Wiesweg <marcel wiesweg gmx de>  2011-09-12 19:26:49 ---
I could reproduce it once, but not always. So I believe there is a problem ;-)
Would be easier to fix though if I could reproduce more regularly. Will try
again, this may depend on random conditions.

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--- Comment #8 from Gilles Caulier <caulier gilles gmail com>  2011-12-17 18:54:35 ---
Martin,

This file still valid using digiKam 2.x serie ?

Gilles Caulier

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--- Comment #9 from Martin Senftleben <linux drmartinus de>  2011-12-17 21:45:13 ---
I haven't observed it any more with the latest releases, but I haven't checked
it now.

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Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |WORKSFORME




--- Comment #10 from Gilles Caulier <caulier gilles gmail com>  2011-12-17 22:06:33 ---
Ok,

I close this file as workforme. Re-open if necessary

Gilles Caulier

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           What    |Removed                     |Added
----------------------------------------------------------------------------
   Version Fixed In|                            |2.5.0

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           What    |Removed                     |Added
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            Product|digikamimageplugins         |digikam
          Component|Auto-Colors                 |Tool-AutoColors

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