[Digikam-devel] [Bug 207005] New: Raw Import Tool does not reflect the predefined Workspace when custom camera profile is chosen

[Milan Knizek]

https://bugs.kde.org/show_bug.cgi?id=207005

           Summary: Raw Import Tool does not reflect the predefined
                    Workspace when custom camera profile is chosen
           Product: digikam
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel at kde.org
        ReportedBy: knizek at volny.cz


Version:           digikam 1.0.0 beta5 svn (using KDE 4.3.1)
OS:                Linux
Installed from:    Compiled From Sources

digiKam's Raw Import Tool does not reflect the predefined Workspace (Raw, Adobe
RGB, Wide Gamut, Pro-Photo) when a custom camera profile is chosen. Instead,
the colour transform is always the same: from the custom camera profile to
sRGB.

When the user selects manually the Workspace profile, the colour transform
works as expected.

I guess the reason is explained in dcraw man page:
...
       -p camera.icm [ -o output.icm ]
              Use ICC profiles to define the camera’s raw colorspace and the
desired output colorspace (sRGB by default).
       -o [0-5]
              Select the output colorspace when the -p option is not used:

                   0   Raw color (unique to each camera)
                   1   sRGB D65 (default)
                   2   Adobe RGB (1998) D65
                   3   Wide Gamut RGB D65
                   4   Kodak ProPhoto RGB D65
                   5   XYZ
...
Hence, when a custom camera profile is selected, the -o [0-5] are ignored and a
real ICC profile is expected. If not provided, the transform is done to sRGB.

Proposed solution:
When the user chooses "Custom" camera profile, the Workspace should offer only
sRGB and Custom.
Alternatively, digiKam should silently replace the internal profiles with a
real ICC profile of the respective name (could there be a problem with
copyright for their distribution?)

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