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a7244477f2
Build system has moved to meson, so rewrite the SlackBuild based on the standard meson template. The manpage now requires "sphinx" to be built, which is a large python package with many dependencies. Patch out the building of same by default, and add the optional dep of Sphinx and the option SPHINX=true for those that want it. Update the README file to reflect this build option/optional dep, and re-paragraph it to make it more readable. Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>
32 lines
1.6 KiB
Text
32 lines
1.6 KiB
Text
unpaper is a post-processing tool for scanned sheets of paper,
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especially for book pages that have been scanned from previously
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created photocopies. The main purpose is to make scanned book pages
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better readable on screen after conversion to PDF. Additionally,
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unpaper might be useful to enhance the quality of scanned pages before
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performing optical character recognition (OCR).
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unpaper tries to clean scanned images by removing dark edges that
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appeared through scanning or copying on areas outside the actual page
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content (e.g. dark areas between the left-hand-side and the
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right-hand-side of a double-sided book-page scan). The program also
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tries to detect disaligned centering and rotation of pages and will
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automatically straighten each page by rotating it to the correct
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angle. This process is called "deskewing".
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Note that the automatic processing will sometimes fail. It is always
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a good idea to manually control the results of unpaper and adjust the
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parameter settings according to the requirements of the input. Each
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processing step can also be disabled individually for each sheet.
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Input and output files can be in either .pbm, .pgm or
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.ppm format, thus generally in .pnm format, as also used by the Linux
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scanning tools scanimage and scanadf. Conversion to PDF can e.g. be
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achieved with the Linux tools pgm2tiff, tiffcp and tiff2pdf.
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This is a fork of the original unpaper software by D.E. "Flameeyes"
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Petteno'.
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BUILD OPTIONS:
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SPHINX => set to 'true' to build the manpage for unpaper, which now
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requires "Sphinx" (available in SBo), which is a large python package
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with many dependencies. Thus, it is disabled by default.
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