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group_from_single_link.cc
1 // Copyright (C) 2009, 2010, 2011 EPITA Research and Development
2 // Laboratory (LRDE)
3 //
4 // This file is part of Olena.
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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/labeling/colorize.hh>
33 
34 #include <mln/util/array.hh>
35 
36 #include <mln/value/label_16.hh>
37 #include <mln/literal/colors.hh>
38 
39 #include <mln/io/pbm/load.hh>
40 
41 #include <scribo/primitive/extract/components.hh>
42 #include <scribo/primitive/link/with_single_left_link.hh>
43 #include <scribo/primitive/link/with_single_right_link.hh>
44 #include <scribo/primitive/group/from_single_link.hh>
45 #include <scribo/primitive/group/apply.hh>
46 
47 #include <scribo/debug/bboxes_image.hh>
48 #include <scribo/debug/linked_bboxes_image.hh>
49 #include <scribo/make/debug_filename.hh>
50 
51 
52 int usage(char *argv[])
53 {
54  std::cout << "Usage: " << argv[0] << " <input.pbm> " << std::endl;
55  return 1;
56 }
57 
58 
59 int main(int argc, char* argv[])
60 {
61  using namespace scribo;
62  using namespace mln;
63 
64  if (argc != 2)
65  return usage(argv);
66 
67  scribo::make::internal::debug_filename_prefix = "group_with_single_link";
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 // io::ppm::save(mln::labeling::colorize(value::rgb8(),
89 // comps,
90 // comps.nlabels()),
91 // scribo::make::debug_filename("lbl_before.ppm"));
92 
94  groups = primitive::group::from_single_link(left_link);
95 
96  component_set<L> grouped_comps = primitive::group::apply(groups);
97 
98  std::cout << "AFTER - nbboxes = " << grouped_comps.nelements() << std::endl;
100  grouped_comps.labeled_image(),
101  grouped_comps.nelements()),
102  scribo::make::debug_filename("left_label_color.ppm"));
103  io::ppm::save(scribo::debug::bboxes_image(input, grouped_comps,
104  literal::red),
105  scribo::make::debug_filename("left_bboxes.ppm"));
106  }
107 
108  {
109  std::cout << "* Left grouping" << std::endl;
110  object_links<L> right_link
112 
113  std::cout << "BEFORE - nbboxes = " << nbboxes << std::endl;
115  right_link,
116  literal::red, literal::cyan),
117  scribo::make::debug_filename("right_links.ppm"));
118 // io::ppm::save(mln::labeling::colorize(value::rgb8(),
119 // comps,
120 // comps.nlabels()),
121 // scribo::make::debug_filename("lbl_before.ppm"));
122 
124  groups = primitive::group::from_single_link(right_link);
125 
126  component_set<L> grouped_comps = primitive::group::apply(groups);
127 
129  grouped_comps.labeled_image(),
130  grouped_comps.nelements()),
131  scribo::make::debug_filename("right_label_color.ppm"));
132  std::cout << "AFTER - nbboxes = " << grouped_comps.nelements() << std::endl;
133 
134  io::ppm::save(scribo::debug::bboxes_image(input, grouped_comps,
135  literal::red),
136  scribo::make::debug_filename("right_bboxes.ppm"));
137  }
138 
139 
140 }