[Digikam-devel] [Bug 144155] New: wrong(?) histogram y-axis when blown-out over/underexposure

[lparrab at gmx.net]

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http://bugs.kde.org/show_bug.cgi?id=144155         
           Summary: wrong(?) histogram y-axis when blown-out
                    over/underexposure
           Product: digikam
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel kde org
        ReportedBy: lparrab gmx net


Version:           9.2 (svn 2007-04-17) (using KDE KDE 3.5.6)
Installed from:    Compiled From Sources
Compiler:          Target: i486-linux-gnu
OS:                Linux (i686) release 2.6.20-6-generic

for images with a certain degree of over/underexposure (clipping/blown-out) the histogram in digikam becomes useless because the y-axis seems to be scaled to accommodate the blown-out highlights or shadows, making the scale for the rest of the picture way to big.

the y-axis should be scaled so that (example) 50% of "Y" represents the highest peak of the non-clipped pixels, effectively cutting the top of the y-axis.