[gs-bugs] [Bug 691462] New: Image much darker after icc_work merge - part deux

bugzilla-daemon at ghostscript.com bugzilla-daemon at ghostscript.com
Thu Jul 15 15:59:06 UTC 2010


http://bugs.ghostscript.com/show_bug.cgi?id=691462

           Summary: Image much darker after icc_work merge - part deux
           Product: Ghostscript
           Version: HEAD
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P4
         Component: Color
        AssignedTo: michael.vrhel at artifex.com
        ReportedBy: marcos.woehrmann at artifex.com
         QAContact: gs-bugs at ghostscript.com
   Estimated Hours: 0.0


Converting the file gray-to-cmyk-with-transfer.ps (which can be found in
tests_private/compare_files) with head (r11508) to a 1 bit cmyk format (pkmraw)
results in a very dark image; r11305 and earlier versions produe a much lighter
image.  Converting to a continuous tone format (ppmraw) with either r11305 or
r11508 results in an image which is close in appearance to r11305.  See the
attached screenshot.

This does not appear to be the same issue as Bug 691444, since that issue was
fixed in r11505 and this issues continues to occur in r11508. 

Example command line:

  bin/gs -sDEVICE=pkmraw -o test.pkm -r72 ./gray-to-cmyk-with-transfer.ps

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