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nixpkgs/pkgs/applications/graphics/tesseract/default.nix

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tesseract: change file layout Rename default.nix -> tesseract3.nix Rename 4.x.nix -> tesseract4.nix This is needed for the following commits.
2018-12-18 18:02:12 +00:00
{ callPackage, lowPrio }:
tesseract: Allow to specify a subset of languages. Especially useful for our OCR based VM tests, where we only need the english language. By default the argument is null so all languages are included. If a list of language name is passed only those languages are enabled, for example: tesseract.override { enableLanguages = [ "eng" "spa" ]; }; To only enable support for English and Spanish languages. Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-05-22 06:45:59 +01:00
tesseract: change file layout Rename default.nix -> tesseract3.nix Rename 4.x.nix -> tesseract4.nix This is needed for the following commits.
2018-12-18 18:02:12 +00:00
let
tesseract: add a wrapper to setup languages Tesseract is now decoupled from the tessdata language corpus. This avoids recompilation when building Tesseract with a custom set of languages. Update k2pdfopt to use the new wrapper interface.
2018-12-18 18:02:13 +00:00
base3 = callPackage ./tesseract3.nix {};
base4 = callPackage ./tesseract4.nix {};
languages = callPackage ./languages.nix {};
tesseract: make tessdata a fix output derivation (#41227) the full tessdata is nearly a GB, so sparing a copy each time we need to rebuild tesseract without updating tessdata is worth it.
2018-06-18 23:03:48 +01:00
in
tesseract: change file layout Rename default.nix -> tesseract3.nix Rename 4.x.nix -> tesseract4.nix This is needed for the following commits.
2018-12-18 18:02:12 +00:00
{
tesseract: add tesseract3 top-level attr
2018-12-19 14:09:41 +00:00
tesseract3 = callPackage ./wrapper.nix {
tesseract: add a wrapper to setup languages Tesseract is now decoupled from the tessdata language corpus. This avoids recompilation when building Tesseract with a custom set of languages. Update k2pdfopt to use the new wrapper interface.
2018-12-18 18:02:13 +00:00
tesseractBase = base3;
languages = languages.v3;
};
tesseract: make tessdata a fix output derivation (#41227) the full tessdata is nearly a GB, so sparing a copy each time we need to rebuild tesseract without updating tessdata is worth it.
2018-06-18 23:03:48 +01:00
tesseract: rename to tesseract4, add alias This is more consistent with the naming of the most popular versioned pkgs.
2018-12-19 13:42:32 +00:00
tesseract4 = lowPrio (callPackage ./wrapper.nix {
tesseract: add a wrapper to setup languages Tesseract is now decoupled from the tessdata language corpus. This avoids recompilation when building Tesseract with a custom set of languages. Update k2pdfopt to use the new wrapper interface.
2018-12-18 18:02:13 +00:00
tesseractBase = base4;
languages = languages.v4;
});
Adding tesseract, an OCR engine I just found but never tried. svn path=/nixpkgs/trunk/; revision=26952
2011-04-24 19:04:07 +01:00
}
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