https://bugs.kde.org/show_bug.cgi?id=406503

            Bug ID: 406503
           Summary: Histogram initializes greyer than white.
           Product: digikam
           Version: 6.0.0
          Platform: MS Windows
                OS: MS Windows
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: ImageEditor
          Assignee: digikam-bugs-n...@kde.org
          Reporter: alexandre.b...@live.fr
  Target Milestone: ---

Created attachment 119399
  --> https://bugs.kde.org/attachment.cgi?id=119399&action=edit
Screenshot of the issue. Note the default linear/uncorrected settings.

SUMMARY
Histogram initializes greyer than white.

STEPS TO REPRODUCE
1. Open ImageEditor
2. Open a picture
3. Select the curve correction (Histogram tool)
4. Keep the default parameters

OBSERVED RESULT
The top histogram is compressed by 1/3 to darker levels than white.
And the previewed picture is darker then normal (even if I reset to default
histogram settings)

EXPECTED RESULT
With default curves, the top histogram should be identical to the bottom one,
and picture should be as bright as the original.

SOFTWARE/OS VERSIONS
Windows: 10 Family

ADDITIONAL INFORMATION

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