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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages ocr)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu)
+  #:use-module (gnu packages autotools)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages image)
+  #:use-module (gnu packages pkg-config))
+
+(define-public ocrad
+  (package
+    (name "ocrad")
+    (version "0.24")
+    (source (origin
+             (method url-fetch)
+             (uri (string-append "mirror://gnu/ocrad/ocrad-"
+                                 version ".tar.lz"))
+             (sha256
+              (base32
+               "0hhlx072d00bi9qia0nj5izsq4qkscpfz2mpbyfc72msl3hfvslv"))))
+    (build-system gnu-build-system)
+    (native-inputs `(("lzip" ,lzip)))
+    (home-page "http://www.gnu.org/software/ocrad/")
+    (synopsis "Optical character recognition based on feature extraction")
+    (description
+     "GNU Ocrad is an optical character recognition program based on a
+feature extraction method.  It can read images in PBM, PGM or PPM formats and
+it produces text in 8-bit or UTF-8 formats.")
+    (license license:gpl3+)))
+
+(define-public tesseract-ocr
+  (package
+    (name "tesseract-ocr")
+    (version "3.02.02")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://tesseract-ocr.googlecode.com/files/tesseract-ocr-"
+             version ".tar.gz"))
+       (sha256
+        (base32 "0g81m9y4iydp7kgr56mlkvjdwpp3mb01q385yhdnyvra7z5kkk96"))
+       (modules '((guix build utils)))
+       ;; Leptonica added a pkg-config file in the meanwhile.
+       (snippet
+        '(substitute* "tesseract.pc.in"
+           (("^# Requires: lept  ## .*")
+            "Requires: lept\n")))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("libtool" ,libtool)))
+    (propagated-inputs
+     `(("leptonica" ,leptonica)))
+    (arguments
+     '(#:phases
+       (modify-phases %standard-phases
+         (add-after
+          unpack autogen
+          (lambda _
+            (zero? (system* "sh" "autogen.sh")))))
+       #:configure-flags
+       (let ((leptonica (assoc-ref %build-inputs "leptonica")))
+         (list (string-append "LIBLEPT_HEADERSDIR=" leptonica "/include")))))
+    (home-page "https://code.google.com/p/tesseract-ocr/")
+    (synopsis "Optical character recognition engine")
+    (description
+     "Tesseract is an optical character recognition (OCR) engine with very
+high accuracy.  It supports many languages, output text formatting, hOCR
+positional information and page layout analysis.  Several image formats are
+supported through the Leptonica library.  It can also detect whether text is
+monospaced or proportional.")
+    (license license:asl2.0)))