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group_from_several_left_links.cc
1 // Copyright (C) 2009, 2010, 2011 EPITA Research and Development
2 // Laboratory (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.
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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 <iostream>
28 
29 #include <mln/core/image/image2d.hh>
30 #include <mln/core/alias/neighb2d.hh>
31 
32 #include <mln/literal/colors.hh>
33 #include <mln/util/graph.hh>
34 
35 #include <mln/labeling/colorize.hh>
36 
37 #include <mln/value/rgb8.hh>
38 #include <mln/value/label_16.hh>
39 
40 #include <mln/io/pbm/load.hh>
41 #include <mln/io/ppm/save.hh>
42 
43 
44 #include <scribo/primitive/extract/components.hh>
45 #include <scribo/primitive/group/apply.hh>
46 #include <scribo/primitive/link/with_several_left_links.hh>
47 #include <scribo/primitive/group/from_single_link.hh>
48 
49 #include <scribo/debug/bboxes_image.hh>
50 #include <scribo/debug/linked_bboxes_image.hh>
51 #include <scribo/make/debug_filename.hh>
52 
53 int usage(const char *name)
54 {
55  std::cout << "Usage: " << name << " <input.pbm> " << std::endl;
56  return 1;
57 }
58 
59 int main(int argc, char* argv[])
60 {
61  using namespace scribo;
62  using namespace mln;
63 
64  if (argc < 1)
65  return usage(argv[0]);
66 
67  scribo::make::internal::debug_filename_prefix = "group_with_several_left_links";
68 
69  image2d<bool> input;
70  io::pbm::load(input, argv[1]);
71 
72  value::label_16 nbboxes;
73  typedef image2d<value::label_16> L;
75  comps = scribo::primitive::extract::components(input, c8(), nbboxes);
76 
77  {
78  std::cout << "* Left grouping" << std::endl;
79  object_links<L> left_link
81 
82  std::cout << "BEFORE - nbboxes = " << nbboxes << std::endl;
84  left_link,
85  literal::red,
86  literal::cyan),
87  scribo::make::debug_filename("left_links.ppm"));
88 
89 
91  groups = primitive::group::from_single_link(left_link);
92 
93  component_set<L> grouped_comps = primitive::group::apply(groups);
94  std::cout << "AFTER - nbboxes = " << grouped_comps.nelements()
95  << std::endl;
97  grouped_comps.labeled_image(),
98  grouped_comps.nelements()),
99  scribo::make::debug_filename("left_label_color.ppm"));
100  io::ppm::save(scribo::debug::bboxes_image(input, grouped_comps,
101  literal::red),
102  scribo::make::debug_filename("left_bboxes.ppm"));
103  }
104 
105 }