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merge_double_link.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.
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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 // \file
27 
28 #include <mln/core/image/image2d.hh>
29 #include <mln/core/alias/neighb2d.hh>
30 #include <mln/io/pbm/load.hh>
31 #include <mln/value/label_8.hh>
32 #include <mln/value/label_32.hh>
33 #include <mln/data/convert.hh>
34 #include <mln/data/wrap.hh>
35 
36 #include <scribo/filter/objects_with_holes.hh>
37 #include <scribo/primitive/extract/components.hh>
38 #include <scribo/primitive/link/with_single_left_link_dmax_ratio.hh>
39 #include <scribo/primitive/link/with_single_right_link_dmax_ratio.hh>
40 #include <scribo/primitive/link/merge_double_link.hh>
41 #include <scribo/primitive/link/internal/dmax_width_and_height.hh>
42 
43 #include "tests/data.hh"
44 
45 
46 int main()
47 {
48  using namespace mln;
49  using namespace scribo;
50 
51  std::string img = SCRIBO_IMG_DIR "/pixels.pbm";
52 
53  unsigned ref_left[] = {0, 1, 1, 2, 4, 5, 6, 7, 7, 9};
54  unsigned ref_right[] = {0, 2, 3, 3, 4, 5, 6, 7, 8, 9};
55  unsigned ref_merged[] = {0, 1, 1, 2, 4, 5, 6, 7, 8, 9};
56 
57 
58  image2d<bool> input;
59  io::pbm::load(input, img.c_str());
60 
61  value::label_16 nlabels;
62  typedef image2d<value::label_16> L;
63  typedef component_set<L> O;
64  O comps = scribo::primitive::extract::components(input, c8(), nlabels);
65 
67 
68  object_links<L> left_link
69  = primitive::link::with_single_left_link_dmax_ratio(comps,
70  dmax_fun_t(1),
71  anchor::MassCenter);
72  object_links<L> right_link
73  = primitive::link::with_single_right_link_dmax_ratio(comps,
74  dmax_fun_t(1),
75  anchor::MassCenter);
76 
77  // Validating left and right links.
79  merged_links = primitive::link::merge_double_link(left_link,
80  right_link);
81 
82  for_all_links(i, left_link)
83  mln_assertion(ref_left[i] == left_link(i));
84 
85  for_all_links(i, right_link)
86  mln_assertion(ref_right[i] == right_link(i));
87 
88  for_all_links(i, merged_links)
89  mln_assertion(ref_merged[i] == merged_links(i));
90 
91 
92 }