[gs-bugs] [Bug 692332] New: Lab image results in strange Decode array and wrong colours in ps2write output

bugzilla-daemon at ghostscript.com bugzilla-daemon at ghostscript.com
Fri Jul 8 08:36:44 UTC 2011


http://bugs.ghostscript.com/show_bug.cgi?id=692332

           Summary: Lab image results in strange Decode array and wrong
                    colours in ps2write output
           Product: Ghostscript
           Version: master
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P4
         Component: PS Writer
        AssignedTo: ken.sharp at artifex.com
        ReportedBy: ken.sharp at artifex.com
         QAContact: gs-bugs at ghostscript.com


The test file IA3Z3476.pdf contains an image in an Lab colour space and when
converted via ps2write this results in an image in RGB space, but with a very
strange /Decode array and incorrect colours (with or without the array)

pdfwrite creates a correctly coloured RGB image, so this is particularly
surprising.

I'll attach a much reduced PDF file (one image) which exhibits the problem.

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