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objects_with_holes.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
7 // the terms of the GNU General Public License as published by the Free
8 // Software Foundation, version 2 of the License.
9 //
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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 // \file
28 
29 #include <mln/core/image/image2d.hh>
30 #include <mln/core/alias/neighb2d.hh>
31 #include <mln/io/pbm/load.hh>
32 #include <mln/value/label_8.hh>
33 #include <mln/value/label_32.hh>
34 #include <mln/data/convert.hh>
35 #include <mln/data/wrap.hh>
36 
37 #include <scribo/filter/objects_with_holes.hh>
38 #include <scribo/primitive/extract/components.hh>
39 
40 #include "tests/data.hh"
41 
42 int main()
43 {
44  using namespace mln;
45  using namespace scribo;
46 
47  std::string img = SCRIBO_IMG_DIR "/text_to_group_and_clean.pbm";
48 
49  image2d<bool> input;
50  io::pbm::load(input, img.c_str());
51 
52  value::label_16 nlabels;
54  O comps = scribo::primitive::extract::components(input, c8(), nlabels);
55  O filtered_comps = scribo::filter::objects_with_holes(comps, 2, 1);
56 
57  unsigned valid_comps = 0;
58  for_all_comps(c, filtered_comps)
59  if (filtered_comps(c).is_valid())
60  ++valid_comps;
61 
62  mln_assertion(valid_comps == 8u);
63 
64 }