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Olena  User documentation 2.1
An Image Processing Platform
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line_info.cc
1 // Copyright (C) 2010 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/core/alias/neighb2d.hh>
30 #include <mln/value/label_16.hh>
31 #include <mln/io/pbm/load.hh>
32 #include <scribo/primitive/extract/components.hh>
33 #include <scribo/primitive/link/with_single_left_link.hh>
34 #include <scribo/primitive/group/from_single_link.hh>
35 #include <scribo/core/line_set.hh>
36 
37 #include "tests/data.hh"
38 
39 
40 int main()
41 {
42  using namespace scribo;
43  using namespace mln;
44 
45 
46  int ref[][9] = { { 0, 0, 0, 0, 0, 0, 0, 0, 0 },
47  // baseline, meanline, ascent, descent, x_height, d_height, a_height, char_space, char_width
48  { 2, 2, 2, 2, 1, 0, 1, 1, 1 },
49  { 4, 4, 4, 4, 1, 0, 1, 0, 1 },
50  { 6, 6, 6, 6, 1, 0, 1, 0, 1 },
51  { 7, 7, 7, 7, 1, 0, 1, 0, 1 },
52  { 12, 12, 10, 12, 1, 0, 3, 0, 1 },
53  { 17, 15, 15, 17, 3, 0, 3, 0, 4 } };
54 
55  std::string img = SCRIBO_IMG_DIR "/pixels.pbm";
56 
57  image2d<bool> input;
58  io::pbm::load(input, img.c_str());
59 
60  value::label_16 nbboxes;
61  typedef image2d<value::label_16> L;
63  text = primitive::extract::components(input, c8(), nbboxes);
64 
66 
68 
69  line_set<L> lines = scribo::line_set<L>(groups);
70 
71 
72  for_all_lines(l, lines)
73  {
74  mln_assertion(lines(l).baseline() == ref[l][0]);
75  mln_assertion(lines(l).meanline() == ref[l][1]);
76  mln_assertion(lines(l).ascent() == ref[l][2]);
77  mln_assertion(lines(l).descent() == ref[l][3]);
78  mln_assertion(lines(l).x_height() == unsigned(ref[l][4]));
79  mln_assertion(lines(l).d_height() == ref[l][5]);
80  mln_assertion(lines(l).a_height() == ref[l][6]);
81  mln_assertion(lines(l).char_space() == unsigned(ref[l][7]));
82  mln_assertion(lines(l).char_width() == unsigned(ref[l][8]));
83  }
84 
85 }
86 
87