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object_groups_size_ratio.cc
1 // Copyright (C) 2011 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
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7 // Software Foundation, version 2 of the License.
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11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // General Public License for more details.
13 //
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15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
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17 // As a special exception, you may use this file as part of a free
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19 // instantiate templates or use macros or inline functions from this
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23 // exception does not however invalidate any other reasons why the
24 // executable file might be covered by the GNU General Public License.
25 
27 
28 #include <iostream>
29 
30 #include <mln/core/image/image2d.hh>
31 #include <mln/core/alias/neighb2d.hh>
32 #include <mln/io/pbm/load.hh>
33 #include <scribo/core/def/lbl_type.hh>
34 #include <scribo/primitive/extract/components.hh>
35 #include <scribo/primitive/link/with_single_left_link.hh>
36 #include <scribo/primitive/group/from_single_link.hh>
37 #include <scribo/filter/object_groups_size_ratio.hh>
38 
39 #include "tests/data.hh"
40 
41 int main()
42 {
43  using namespace scribo;
44  using namespace mln;
45 
46  std::string img = SCRIBO_IMG_DIR "/the_valleys.pbm";
47 
48  const bool ref[] = { false, true, true, true, true };
49  const bool filtered_ref[] = { false, true, true, false, false };
50 
51  image2d<bool> input;
52  io::pbm::load(input, img.c_str());
53 
54  typedef scribo::def::lbl_type V;
55  typedef image2d<V> L;
56 
57  V nbboxes;
59  text = primitive::extract::components(input, c8(), nbboxes);
61 
63 
64  mln_assertion(groups.nelements() == 5);
65  for_all_groups(g, groups)
66  mln_assertion(groups(g).is_valid() == ref[g]);
67 
68  groups = filter::object_groups_size_ratio(groups, 1.2, 0.3);
69 
70  mln_assertion(groups.nelements() == 5);
71  for_all_groups(g, groups)
72  mln_assertion(groups(g).is_valid() == filtered_ref[g]);
73 }