[Okular-devel] [Bug 218993] New: Monochrome TIFF images not displayed when no BitsPerSample tag present (qt 4.6)

[Doug Semler]

https://bugs.kde.org/show_bug.cgi?id=218993

           Summary: Monochrome TIFF images not displayed when no
                    BitsPerSample tag present (qt 4.6)
           Product: okular
           Version: unspecified
          Platform: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: TIFF backend
        AssignedTo: okular-devel at kde.org
        ReportedBy: douglas.semler at unisys.com


Version:            (using KDE 4.3.4)
OS:                Linux
Installed from:    Unlisted Binary Package

When attempting to load a monochrome TIFF image (dolphin preview, kolourpaint,
or any other KDE-base application), a message stating "Unable to load, invalid
image format" (or no preview, or similar message) is displayed if the image
file is missing the BitsPerSample TIFF tag.  This tag is optional in monochrome
images, with a default value of '1'.  Adding the tag with the correct value
causes the images to be displayed/load properly.

Downgrading from qt 4.6 to qt 4.5.3 solves the issue.

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