[Bug 182272] New: color profile and white balance

[Harald Hoyer-3]

http://bugs.kde.org/show_bug.cgi?id=182272

           Summary: color profile and white balance
           Product: digikam
           Version: unspecified
          Platform: Fedora RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: [hidden email]
        ReportedBy: [hidden email]


Version:           digikam-0.10.0-0.12.beta8.fc10.x86_64 (using KDE 4.1.4)
OS:                Linux
Installed from:    Fedora RPMs

It seems that only eog and gimp display the image with the correct white
balance.
http://www.harald-hoyer.de/gallery2/d/31063-1/IMG_1501-3.JPG

What is wrong here? Does digikam not honor the white point defined in the image
color profile?


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[Harald Hoyer-3]

http://bugs.kde.org/show_bug.cgi?id=182272





--- Comment #1 from Harald Hoyer <harald redhat com>  2009-01-29 10:26:43 ---
Might be the same with the images mentioned here:
http://www.harald-hoyer.de/personal/blog/color_management


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[Gilles Caulier-4]

http://bugs.kde.org/show_bug.cgi?id=182272


Gilles Caulier caulier gilles gmail com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|general                     |Color Management
            Version|unspecified                 |0.10.0-beta8




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[Harald Hoyer-3]

http://bugs.kde.org/show_bug.cgi?id=182272





--- Comment #2 from Harald Hoyer <harald redhat com>  2009-02-11 12:35:35 ---
another example for a wide gamut profile:

$ wget http://www.harald-hoyer.de/files/IMG_2387-wide-gamut.JPG
$ identify -verbose IMG_2387-wide-gamut.JPG
...
  Profiles:
    Profile-exif: 8412 bytes
    Profile-icc: 560 bytes
      Wide Gamut RGB
...

see the image with wrong colors
$ display IMG_2387-wide-gamut.JPG

now we convert it to sRGB
$ jpegicc IMG_2387-wide-gamut.JPG IMG_2387-sRGB.JPG

and we can see the image with the correct colors
$ display IMG_2387-sRGB.JPG

digikam does not even show that there is an embedded profile in the image
browser nor does showFoto in the "convert to workspace color profile" dialog.


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Corinna Vinschen <[hidden email]> changed:

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--- Comment #3 from Corinna Vinschen <corinna vinschen de>  2009-02-16 14:16:54 ---
This problem still appears in 0.10.0-rc1, AFAICS.  The same photo
viewed using Gimp looks visibly more warm than in Digikam's Editor,
when using the exact same Workspace and Monitor Color Profiles.
Only when switching off Color Management in both, Gimp and Digikam,
the photo loks identical between the two.


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Marcel Wiesweg <[hidden email]> changed:

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--- Comment #4 from Marcel Wiesweg <marcel wiesweg gmx de>  2009-06-22 10:38:35 ---
*** Bug 197353 has been marked as a duplicate of this bug. ***

--- Comment #5 from David Eriksson <meldavid acc umu se>  2009-07-05 21:57:14 ---
I think part of the problem is that embedded profiles in jpeg are not read and
that an embedded profile is not used as input profile when converting the
image.
The attached patch fixes these problems, at least to the extent that the test
image looks good. I don't know if useBuiltin should be tested before embedded
or not.

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--- Comment #6 from David Eriksson <meldavid acc umu se>  2009-07-05 21:57:59 ---
Created an attachment (id=35069)
 --> (http://bugs.kde.org/attachment.cgi?id=35069)
Patch to fix some icc problems

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[Gilles Caulier-4]

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Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|0.10.0-beta8                |0.10.0




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[Milan Knizek]

https://bugs.kde.org/show_bug.cgi?id=182272


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[Marcel Wiesweg]

https://bugs.kde.org/show_bug.cgi?id=182272





--- Comment #7 from Marcel Wiesweg <marcel wiesweg gmx de>  2009-08-09 00:20:42 ---
SVN commit 1009011 by mwiesweg:

Patch by David Eriksson:
Fix very subtle bug in the JPEG loader preventing embedded ICC profiles to be
read because
the reading structure was destroyed before.
Awesome that you have found that bug!

CCBUG: 182272

 M  +1 -1      jpegloader.cpp  


WebSVN link: http://websvn.kde.org/?view=rev&revision=1009011

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[Gilles Caulier-4]

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--- Comment #8 from Gilles Caulier <caulier gilles gmail com>  2009-08-15 11:27:49 ---
Harald,

Can you test patch applied by Marcel in current implementation from svn
(1.0.0-beta4) ?

Thanks in advance

Gilles Caulier

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[Milan Knizek]

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--- Comment #9 from Milan Knizek <knizek volny cz>  2009-08-16 20:56:11 ---
I have tested the current svn - embedded profiles in JPEGs are now recognised
correctly by the editor (I have tested an image in the synthetic BRG.icc space
so that misbehaviour is clearly visible).

One remaining thing is that digiKam still asks once, twice or even three-times
about conversion/assignment/do nothing on ICC profile mismatch with the working
space - I do not know if that is related or not. (I have not found what
triggers the number of pop-up windows.)

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[Marcel Wiesweg]

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--- Comment #10 from Marcel Wiesweg <marcel wiesweg gmx de>  2009-08-16 22:22:09 ---
Yes the code is in a sort of intermediate state currently there are some new
bugs in it but I am preparing some more changes still. It's work in progress
until the next beta.

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[Marcel Wiesweg]

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Marcel Wiesweg <[hidden email]> changed:

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




--- Comment #11 from Marcel Wiesweg <marcel wiesweg gmx de>  2009-08-20 23:22:25 ---
The original bug is fixed. All proposed testcases here are displayed correctly
on the image editor (img_2387 is not strikingly different, but I can see a
difference) The problem of showing three dialogs is a different problem, I will
fix that at the weekend.

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