Files
nixpkgs/pkgs/by-name/oc/ocrad/package.nix
2025-05-20 03:42:32 +08:00

51 lines
1.1 KiB
Nix

{
lib,
stdenv,
fetchurl,
lzip,
texinfo,
libpng,
}:
stdenv.mkDerivation (finalAttrs: {
pname = "ocrad";
version = "0.29";
src = fetchurl {
url = "mirror://gnu/ocrad/ocrad-${finalAttrs.version}.tar.lz";
hash = "sha256-ESAMxrC3uhaISnLcy1jvaU96omzSsgQeVVWA8GTS2ek=";
};
nativeBuildInputs = [
lzip # unpack
];
buildInputs = [
texinfo
libpng
];
doCheck = true;
meta = {
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 = lib.licenses.gpl3Plus;
maintainers = with lib.maintainers; [ pSub ];
platforms = lib.platforms.unix;
mainProgram = "ocrad";
};
})