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1;;; GNU Guix --- Functional package management for GNU
2;;; Copyright © 2013 Ludovic Courtès <[email protected]>
3;;; Copyright © 2016, 2020 Efraim Flashner <[email protected]>
4;;; Copyright © 2019 Tobias Geerinckx-Rice <[email protected]>
5;;; Copyright © 2019 Alex Vong <[email protected]>
6;;; Copyright © 2021, 2024 Andy Tai <[email protected]>
7;;; Copyright © 2021, 2022, 2024 Nicolas Goaziou <[email protected]>
8;;; Copyright © 2022, 2023 Maxim Cournoyer <[email protected]>
9;;;
10;;; This file is part of GNU Guix.
11;;;
12;;; GNU Guix is free software; you can redistribute it and/or modify it
13;;; under the terms of the GNU General Public License as published by
14;;; the Free Software Foundation; either version 3 of the License, or (at
15;;; your option) any later version.
16;;;
17;;; GNU Guix is distributed in the hope that it will be useful, but
18;;; WITHOUT ANY WARRANTY; without even the implied warranty of
19;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20;;; GNU General Public License for more details.
21;;;
22;;; You should have received a copy of the GNU General Public License
23;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
24
25(define-module (gnu packages ocr)
26 #:use-module ((guix licenses) #:prefix license:)
27 #:use-module (guix packages)
28 #:use-module (guix download)
29 #:use-module (guix gexp)
30 #:use-module (guix git-download)
31 #:use-module (guix build-system cmake)
32 #:use-module (guix build-system copy)
33 #:use-module (guix build-system gnu)
34 #:use-module (guix build-system pyproject)
35 #:use-module (guix build-system qt)
36 #:use-module (gnu packages)
37 #:use-module (gnu packages autotools)
38 #:use-module (gnu packages backup)
39 #:use-module (gnu packages check)
40 #:use-module (gnu packages compression)
41 #:use-module (gnu packages curl)
42 #:use-module (gnu packages djvu)
43 #:use-module (gnu packages docbook)
44 #:use-module (gnu packages documentation)
45 #:use-module (gnu packages enchant)
46 #:use-module (gnu packages gettext)
47 #:use-module (gnu packages glib)
48 #:use-module (gnu packages gtk)
49 #:use-module (gnu packages icu4c)
50 #:use-module (gnu packages image)
51 #:use-module (gnu packages pdf)
52 #:use-module (gnu packages pkg-config)
53 #:use-module (gnu packages python)
54 #:use-module (gnu packages python-build)
55 #:use-module (gnu packages python-science)
56 #:use-module (gnu packages python-xyz)
57 #:use-module (gnu packages qt)
58 #:use-module (gnu packages scanner)
59 #:use-module (gnu packages xml))
60
61(define-public ocrad
62 (package
63 (name "ocrad")
64 (version "0.29")
65 (source (origin
66 (method url-fetch)
67 (uri (string-append "mirror://gnu/ocrad/ocrad-"
68 version ".tar.lz"))
69 (sha256
70 (base32
71 "1sfrs9jg102malg09cnjdji7lkv9xxccpp3j9a41dfmpn330q80i"))))
72 (build-system gnu-build-system)
73 (native-inputs (list libpng lzip))
74 (home-page "https://www.gnu.org/software/ocrad/")
75 (synopsis "Optical character recognition based on feature extraction")
76 (description
77 "GNU Ocrad is an optical character recognition program based on a
78feature extraction method. It can read images in PBM, PGM or PPM formats and
79it produces text in 8-bit or UTF-8 formats.")
80 (license license:gpl3+)))
81
82(define-public python-pytesseract
83 (package
84 (name "python-pytesseract")
85 (version "0.3.13")
86 (source
87 (origin
88 (method git-fetch)
89 (uri (git-reference
90 (url "https://github.com/madmaze/pytesseract")
91 (commit (string-append "v" version))))
92 (file-name (git-file-name name version))
93 (sha256
94 (base32 "16arn7ygk7ain5j5ayjcy10y6yhwfcc090i3r8q553m89rr1w0w1"))))
95 (build-system pyproject-build-system)
96 (arguments
97 (list
98 #:test-flags
99 #~(map (lambda (name)
100 (string-append "--deselect=tests/pytesseract_test.py::" name))
101 ;; These tests cannot find generated files
102 '("test_image_to_pdf_or_hocr[pdf]"
103 "test_run_and_get_multiple_output[extensions0]"
104 "test_run_and_get_multiple_output[extensions1]"))
105 #:phases
106 #~(modify-phases %standard-phases
107 (add-after 'unpack 'set-tesseract-path
108 (lambda* (#:key inputs #:allow-other-keys)
109 (substitute* "pytesseract/pytesseract.py"
110 (("tesseract_cmd = 'tesseract'")
111 (format #f "tesseract_cmd = '~a'"
112 (search-input-file inputs "/bin/tesseract"))))))
113 (add-before 'check 'set-tessdata-prefix
114 (lambda _
115 (setenv "TESSDATA_PREFIX"
116 ;; needs "fra" language
117 (string-append #$(this-package-native-input
118 "tesseract-ocr-tessdata-fast")
119 "/share/tessdata")))))))
120 (native-inputs (list python-numpy
121 python-packaging
122 python-pandas
123 python-pytest
124 python-setuptools
125 tesseract-ocr
126 tesseract-ocr-tessdata-fast))
127 (inputs (list tesseract-ocr))
128 (propagated-inputs (list python-pandas python-pillow))
129 (home-page "https://github.com/madmaze/pytesseract")
130 (synopsis "Python wrapper for Google's Tesseract-OCR")
131 (description
132 "This package provides @command{pytesseract} and Python wrapper library
133for Google's Tesseract-@acronym{OCR, optical character recognition}.")
134 (license license:asl2.0)))
135
136(define-public tesseract-ocr-tessdata-fast
137 (package
138 (name "tesseract-ocr-tessdata-fast")
139 (version "4.1.0")
140 (source (origin
141 (method git-fetch)
142 (uri (git-reference
143 (url "https://github.com/tesseract-ocr/tessdata_fast")
144 (commit version)))
145 (file-name (git-file-name name version))
146 (sha256
147 (base32
148 "1m310cpb87xx8l8q7jy9fvzf6a0m8rm0dmjpbiwhc2mi6w4gn084"))))
149 (build-system copy-build-system)
150 (arguments (list #:install-plan #~'(("." "share/tessdata"))
151 #:phases #~(modify-phases %standard-phases
152 (add-after 'unpack 'delete-broken-links
153 (lambda _
154 (delete-file "configs")
155 (delete-file "pdf.ttf"))))))
156 (home-page "https://github.com/tesseract-ocr/tessdata_fast")
157 (synopsis "Fast integer versions of trained LSTM models")
158 (description "This repository contains fast integer versions of trained
159models for the Tesseract OCR Engine.")
160 (license license:asl2.0)))
161
162(define-public tesseract-ocr
163 (package
164 (name "tesseract-ocr")
165 (version "5.3.0")
166 (source
167 (origin
168 (method git-fetch)
169 (uri (git-reference
170 (url "https://github.com/tesseract-ocr/tesseract")
171 (commit version)))
172 (file-name (git-file-name name version))
173 (sha256
174 (base32
175 "0vylcba8w5ljnr6pf3ilc2wjq72k660h71b7mlbjz3a2f0x5kr33"))))
176 (build-system gnu-build-system)
177 (arguments
178 (list
179 #:configure-flags
180 #~(list (string-append "LIBLEPT_HEADERSDIR="
181 #$(this-package-input "leptonica") "/include")
182 "--disable-static") ;avoid 6 MiB static archive
183 ;; The unit tests are disabled because they require building bundled
184 ;; third party libraries.
185 #:tests? #f
186 #:phases
187 #~(modify-phases %standard-phases
188 (add-after 'unpack 'do-not-override-xml-catalog-files
189 (lambda _
190 (substitute* "configure.ac"
191 (("AC_SUBST\\(\\[XML_CATALOG_FILES])")
192 ""))))
193 (add-after 'build 'build-training
194 (lambda* (#:key parallel-build? #:allow-other-keys)
195 (define n (if parallel-build? (number->string
196 (parallel-job-count))
197 "1"))
198 (invoke "make" "-j" n "training")))
199 (add-after 'install 'install-training
200 (lambda _
201 (invoke "make" "training-install")))
202 (add-after 'install 'install-minimal-tessdata
203 ;; tesseract-ocr cannot be used without its trained models data;
204 ;; install the English language as a minimal base which can be
205 ;; extended via TESSDATA_PREFIX.
206 (lambda* (#:key native-inputs inputs #:allow-other-keys)
207 (define eng.traineddata
208 "/share/tessdata/eng.traineddata")
209 (install-file (search-input-file (or native-inputs inputs)
210 eng.traineddata)
211 (dirname (string-append #$output
212 eng.traineddata))))))))
213 (native-inputs
214 (list asciidoc
215 autoconf
216 automake
217 curl
218 docbook-xsl
219 libarchive
220 libtiff
221 libtool
222 libxslt
223 pkg-config
224 tesseract-ocr-tessdata-fast))
225 (inputs
226 (list cairo
227 icu4c
228 pango
229 python-wrapper))
230 (propagated-inputs
231 ;; Required by tesseract.pc.
232 (list leptonica))
233 (native-search-paths (list (search-path-specification
234 (variable "TESSDATA_PREFIX")
235 (files (list "share/tessdata"))
236 (separator #f)))) ;single value
237 (home-page "https://github.com/tesseract-ocr/tesseract")
238 (synopsis "Optical character recognition engine")
239 (description
240 "Tesseract is an optical character recognition (OCR) engine with very
241high accuracy. It supports many languages, output text formatting, hOCR
242positional information and page layout analysis. Several image formats are
243supported through the Leptonica library. It can also detect whether text is
244monospaced or proportional. Support for the English language is included by
245default. To add support for more languages, the
246@code{tesseract-ocr-tessdata-fast} package should be installed.")
247 (license license:asl2.0)))
248
249(define-public gimagereader
250 (package
251 (name "gimagereader")
252 (version "3.4.3")
253 (source
254 (origin
255 (method url-fetch)
256 (uri (string-append
257 "https://github.com/manisandro/gImageReader/releases"
258 "/download/v" version "/"
259 "gimagereader-" version ".tar.xz"))
260 (sha256
261 (base32 "09f4njwhw7xkyq4pjzjrmypzczijckcbimwq8776hb4milzba126"))))
262 (build-system qt-build-system)
263 (arguments
264 (list
265 #:qtbase qtbase
266 #:tests? #f ;no test
267 #:configure-flags #~(list "-DENABLE_VERSIONCHECK=0")))
268 (native-inputs
269 (list gettext-minimal intltool pkg-config))
270 (inputs
271 (list enchant
272 djvulibre
273 leptonica
274 podofo
275 poppler-qt6
276 sane
277 qtbase
278 qt5compat
279 qtspell
280 qtwayland
281 quazip
282 tesseract-ocr))
283 (home-page "https://github.com/manisandro/gImageReader")
284 (synopsis "Qt front-end to tesseract-ocr")
285 (description
286 "gImageReader is a Qt front-end to Tesseract optical character
287recognition (OCR) software.
288
289gImageReader supports automatic page layout detection but the user can
290also manually define and adjust the recognition regions. It is
291possible to import images from disk, scanning devices, clipboard and
292screenshots. gImageReader also supports multipage PDF documents.
293Recognized text is displayed directly next to the image and basic text
294editing including search/replace and removing of line breaks is
295possible. Spellchecking for the output text is also supported if the
296corresponding dictionaries are installed.")
297 (license license:gpl3+)))
298
299(define-public zinnia
300 (let* ((commit "581faa8f6f15e4a7b21964be3a5ec36265c80e5b")
301 (revision "1")
302 ;; version copied from 'configure.in'
303 (version (git-version "0.07" revision commit)))
304 (package
305 (name "zinnia")
306 (version version)
307 (source
308 (origin
309 (method git-fetch)
310 (uri (git-reference
311 (url "https://github.com/taku910/zinnia")
312 (commit commit)))
313 (sha256
314 (base32
315 "1izjy5qw6swg0rs2ym2i72zndb90mwrfbd1iv8xbpwckbm4899lg"))
316 (file-name (git-file-name name version))
317 (modules '((guix build utils)
318 (ice-9 ftw)
319 (srfi srfi-26)))
320 (snippet ; remove unnecessary files with potentially different license
321 '(begin
322 (for-each delete-file-recursively
323 (scandir "."
324 (negate (cut member <> '("zinnia"
325 "." "..")))))
326 #t))))
327 (build-system gnu-build-system)
328 (arguments
329 `(#:phases
330 (modify-phases %standard-phases
331 (replace 'bootstrap
332 (lambda _
333 (chdir "zinnia")
334 (for-each make-file-writable
335 '("config.log" "config.status"))
336 #t)))))
337 (home-page "https://taku910.github.io/zinnia/")
338 (synopsis "Online hand recognition system with machine learning")
339 (description
340 "Zinnia is a simple, customizable and portable online hand recognition
341system based on Support Vector Machines. Zinnia simply receives user pen
342strokes as a sequence of coordinate data and outputs n-best characters sorted
343by SVM confidence. To keep portability, Zinnia doesn't have any rendering
344functionality. In addition to recognition, Zinnia provides training module
345that allows us to create any hand-written recognition systems with low-cost.")
346 (license (list license:bsd-3 ; all files except...
347 (license:non-copyleft ; some autotools related files
348 "file://zinnia/aclocal.m4")
349 license:x11 ; 'install-sh'
350 license:public-domain))))) ; 'install-sh'
351
352