[Poppler-bugs] [Bug 98537] New: pdftoppm -tiff -gray/-mono generates wrong image

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98537

            Bug ID: 98537
           Summary: pdftoppm -tiff -gray/-mono generates wrong image
           Product: poppler
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: utils
          Assignee: poppler-bugs at lists.freedesktop.org
          Reporter: ku at digitaldolphins.jp

Hi.

pdftoppm -tiff -gray generates horizontally 3x stretched image.
pdftoppm -tiff -mono generates a kind of messed up image.

TiffWriter::writePointers and
TiffWriter::writeRow seem to accept native rowData (1bpp and 8bpp) rather than
24bpp RGB pixel format.

I have fixed it by adding supportNativeMonoRowData to ImgWriter.

My commit/patch is here. This can be used to fix the problem! However the
branch pdftoppm-pdftotif also contains my extra stuff like -singletiff option.

https://github.com/HiraokaHyperTools/poppler_mirror/commit/6716c91ce2b84ad2b44745e4b5efafd9443fb675

kenjiuno

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