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otsu.hh
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26 
27 #ifndef SCRIBO_BINARIZATION_OTSU_HH
28 # define SCRIBO_BINARIZATION_OTSU_HH
29 
30 # include <mln/core/concept/image.hh>
31 
32 # include <scribo/binarization/otsu_threshold.hh>
33 # include <scribo/binarization/global_threshold.hh>
34 
35 namespace scribo
36 {
37 
38  namespace binarization
39  {
40 
41  using namespace mln;
42 
54  template <typename I>
55  mln_ch_value(I,bool)
56  otsu(const Image<I>& input);
57 
58 
59 # ifndef MLN_INCLUDE_ONLY
60 
61 
62  template <typename I>
63  mln_ch_value(I,bool)
64  otsu(const Image<I>& input_)
65  {
66  mln_trace("scribo::binarization::otsu");
67 
68  const I& input = exact(input_);
69  mln_precondition(input.is_valid());
70  mlc_is_a(mln_value(I), value::Scalar)::check();
71  // FIXME: Check that input value is gray level.
72 
73  mln_value(I) threshold = otsu_threshold(input);
74 
75  // Computing final result.
76  mln_ch_value(I,bool) output = global_threshold(input, threshold);
77 
78  return output;
79  }
80 
81 # endif // ! MLN_INCLUDE_ONLY
82 
83  } // end of namespace scribo::binarization
84 
85 } // end of namespace scribo
86 
87 #endif // ! SCRIBO_BINARIZATION_OTSU_HH