[libav-bugs] [Bug 18] New: color inaccuracy in 10bpc -> 8bpc conversion/dithering

bugzilla-daemon at batanen.kinali.ch bugzilla-daemon at batanen.kinali.ch
Sun Jul 17 07:48:14 CEST 2011


           Summary: color inaccuracy in 10bpc -> 8bpc conversion/dithering
           Product: Libav
           Version: git HEAD
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: libswscale
        AssignedTo: libav-bugs at libav.org
        ReportedBy: lachs0r at srsfckn.biz

The 10bpc to 8bpc conversions cause a slight reddish tint.

Screenshots and test samples are here:

Also note that the RGB results are further off than the YUV results and also
introduce more visible color banding.

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