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An Image Processing Platform
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find_thick_lines.cc
1 // Copyright (C) 2009, 2010 EPITA Research and Development Laboratory
2 // (LRDE)
3 //
4 // This file is part of Olena.
5 //
6 // Olena is free software: you can redistribute it and/or modify it under
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8 // Software Foundation, version 2 of the License.
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13 // General Public License for more details.
14 //
15 // You should have received a copy of the GNU General Public License
16 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
17 //
18 // As a special exception, you may use this file as part of a free
19 // software project without restriction. Specifically, if other files
20 // instantiate templates or use macros or inline functions from this
21 // file, or you compile this file and link it with other files to produce
22 // an executable, this file does not by itself cause the resulting
23 // executable to be covered by the GNU General Public License. This
24 // exception does not however invalidate any other reasons why the
25 // executable file might be covered by the GNU General Public License.
26 
27 #include <mln/core/image/image2d.hh>
28 #include <mln/value/label_16.hh>
29 #include <mln/value/rgb8.hh>
30 #include <mln/core/alias/neighb2d.hh>
31 #include <mln/io/pbm/all.hh>
32 #include <mln/io/ppm/save.hh>
33 #include <mln/data/convert.hh>
34 #include <mln/debug/superpose.hh>
35 
36 #include <scribo/debug/usage.hh>
37 
38 #include <scribo/primitive/extract/lines_h_thick.hh>
39 #include <scribo/primitive/extract/lines_v_thick.hh>
40 
41 #include <scribo/primitive/extract/lines_h_single.hh>
42 #include <scribo/primitive/extract/lines_v_single.hh>
43 
44 
45 const char *args_desc[][2] =
46 {
47  { "input.pbm", "A binary image. Objects are set to True." },
48  { "vlength ", "Minimum vertical line length." },
49  { "hlength ", "Minimum horizontal line length." },
50  {0, 0}
51 };
52 
53 
54 int main(int argc, char *argv[])
55 {
56  using namespace mln;
57  using namespace scribo;
58 
59  if (argc != 5)
60  return scribo::debug::usage(argv,
61  "Extract thick horizontal and vertical "
62  "lines.\n Common argument values: 150 150.",
63  "<input.pbm> <vlength> <hlength> <output.ppm>",
64  args_desc);
65 
66  mln_trace("main");
67 
68  typedef image2d<bool> I;
69  I input;
70  io::pbm::load(input, argv[1]);
71 
72  typedef image2d<value::label_16> L;
73 
74  value::label_16
75  nhlines,
76  nvlines;
77 
79  hlines = scribo::primitive::extract::lines_h_thick(input, c8(),
80  nhlines, atoi(argv[2])),
81  vlines = scribo::primitive::extract::lines_v_thick(input, c8(),
82  nvlines, atoi(argv[3]));
83 
85  out = mln::debug::superpose(input, hlines.labeled_image(), literal::red);
86  out = mln::debug::superpose(out, vlines.labeled_image(), literal::green);
87 
88  io::ppm::save(out, argv[4]);
89 
90 }