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An Image Processing Platform
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pbm_lines_recognition.cc
1 // Copyright (C) 2010, 2013 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
4 //
5 // Olena is free software: you can redistribute it and/or modify it under
6 // the terms of the GNU General Public License as published by the Free
7 // Software Foundation, version 2 of the License.
8 //
9 // Olena is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
16 //
17 // As a special exception, you may use this file as part of a free
18 // software project without restriction. Specifically, if other files
19 // instantiate templates or use macros or inline functions from this
20 // file, or you compile this file and link it with other files to produce
21 // an executable, this file does not by itself cause the resulting
22 // executable to be covered by the GNU General Public License. This
23 // exception does not however invalidate any other reasons why the
24 // executable file might be covered by the GNU General Public License.
25 
26 #include <iostream>
27 
28 #include <mln/core/image/image2d.hh>
29 #include <mln/io/pbm/load.hh>
30 #include <mln/value/int_u16.hh>
31 
32 #include <scribo/text/recognition.hh>
33 
34 #include <scribo/debug/usage.hh>
35 
36 #include <scribo/core/component_set.hh>
37 #include <scribo/core/object_links.hh>
38 #include <scribo/core/object_groups.hh>
39 
40 #include <scribo/text/merging.hh>
41 #include <scribo/primitive/extract/components.hh>
42 #include <scribo/primitive/link/with_single_left_link_dmax_ratio.hh>
43 #include <scribo/primitive/group/from_single_link.hh>
44 
45 #include <scribo/io/text_boxes/save.hh>
46 
47 
48 const char *args_desc[][2] =
49 {
50  { "input.pbm", "A binary image. 'True' for objects, 'False'\
51 for the background." },
52  { "lang", "Must be set to \"eng\", \"fra\", \"deu\", \"spa\", \"ita\" (Default \"fra\")" },
53  {0, 0}
54 };
55 
56 
57 
58 int main(int argc, char* argv[])
59 {
60  using namespace scribo;
61  using namespace mln;
62 
63  if (argc != 2 && argc != 3 && argc != 4)
64  return scribo::debug::usage(argv,
65  "Text recognition",
66  "input.pbm [lang] [file]",
67  args_desc);
68 
69  mln_trace("main");
70 
71  image2d<bool> input;
72  mln::io::pbm::load(input, argv[1]);
73 
74  typedef image2d<value::int_u16> L;
75  value::int_u16 ncomps;
77  comps = scribo::primitive::extract::components(input, c8(), ncomps);
78  std::cout << "ncomps = " << ncomps << std::endl;
79 
82 
85 
86  line_set<L> lines(groups);
87  lines = text::merging(lines);
88 
89  std::string str = argv[2];
90  const char *lang;
91  if (argc < 3 || (str != "eng" && str != "fra"
92  && str != "deu" && str != "spa"
93  && str != "ita"))
94  lang = "fra";
95  else
96  lang = argv[2];
97 
98  char *output = 0;
99  if (argc >= 4)
100  output = argv[3];
101 
102  scribo::text::recognition(lines, lang);
103 
104  scribo::io::text_boxes::save(lines, output);
105 
106 }