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default.nix
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default.nix
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{ fetchurl, stdenv, lzip, texinfo }:
stdenv.mkDerivation rec {
name = "ocrad-0.26";
src = fetchurl {
url = "mirror://gnu/ocrad/${name}.tar.lz";
sha256 = "0g4fq7maybdnd1471kd05a3f5sb7spa3d26k706rk85sd5wd70y3";
};
buildInputs = [ lzip texinfo ];
doCheck = true;
meta = with stdenv.lib; {
description = "Optical character recognition (OCR) program & library";
longDescription =
'' GNU Ocrad is an OCR (Optical Character Recognition) program based on
a feature extraction method. It reads images in pbm (bitmap), pgm
(greyscale) or ppm (color) formats and produces text in byte (8-bit)
or UTF-8 formats.
Also includes a layout analyser able to separate the columns or
blocks of text normally found on printed pages.
Ocrad can be used as a stand-alone console application, or as a
backend to other programs.
'';
license = licenses.gpl3Plus;
maintainers = with maintainers; [ pSub ];
platforms = platforms.gnu ++ platforms.linux; # arbitrary choice
};
}