[Digikam-devel] [Bug 223232] New: Digikam Does Not Detect the Color Profile in DCF Files

Frank Gore gore at projectpontiac.com
Mon Jan 18 01:30:53 GMT 2010


https://bugs.kde.org/show_bug.cgi?id=223232

           Summary: Digikam Does Not Detect the Color Profile in DCF Files
           Product: digikam
           Version: 1.0.0
          Platform: openSUSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel at kde.org
        ReportedBy: gore at projectpontiac.com


Version:           1.0.0 (using KDE 4.3.1)
OS:                Linux
Installed from:    openSUSE RPMs

All modern cameras use DCF 2.0 when generating images. According to DCF 2.0
(which is based on EXIF 2.21), the color profile is specified as part of the
EXIF metadata, not embedded as an ICC profile.

As far as I can tell, Digikam does not detect the appropriate color profile
when viewing or opening pictures from cameras that use DCF 2.0.

The following applies to the viewer:
For example, if I have the "Working Color Space" set to sRGB, any pictures I
took while my camera was set to Adobe RGB end up looking washed out and bland.
If I have the "Working Color Space" set to Adobe RGB, any pictures from a
camera that was set to sRGB come out over-saturated.

The following applies to the editor:
If I open a picture that adheres to the DCF 2.0 specification, no color profile
is detected. I can set Digikam to ask me which profile should be assigned to
the picture, but that leaves me guessing. I have no way of knowing what it
"should" be unless I wade through the EXIF data myself beforehand, or I've
memorized which picture was in which color space.

All of this completely defeats the whole point of seamless color management.
The color profile is specified properly, Digikam just doesn't see it.

The DCF 2.0 specification can be found here, but it must be purchased (which
sucks):
http://www.jeita.or.jp/english/standard/html/1_4.html

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