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wolf_formula.hh
1 // Copyright (C) 2012 EPITA Research and Development Laboratory (LRDE)
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25 
26 #ifndef SCRIBO_BINARIZATION_INTERNAL_WOLF_FORMULA_HH
27 # define SCRIBO_BINARIZATION_INTERNAL_WOLF_FORMULA_HH
28 
29 
34 
35 
36 // Setup default Wolf's formula parameters values.
37 // These macros may be used in other variant of Wolf's algorithms.
38 //
39 // Values are set according to the following reference: <FIXME>
40 
41 # define SCRIBO_DEFAULT_WOLF_K 0.34
42 
43 
44 #include <mln/core/alias/point2d.hh>
45 
46 namespace scribo
47 {
48 
49  namespace binarization
50  {
51 
52  namespace internal
53  {
54 
55  using namespace mln;
56 
57  template <typename V>
58  struct wolf_formula
59  {
60 
67  double operator()(const double m_x_y, const double s_x_y,
68  const double K, const double global_max_stddev,
69  const V& global_min) const;
70 
71  };
72 
73 
74 # ifndef MLN_INCLUDE_ONLY
75 
76 
77  template <typename V>
78  inline
79  double
80  wolf_formula<V>::operator()(const double m_x_y, const double s_x_y,
81  const double K, const double global_max_stddev,
82  const V& global_min) const
83  {
84  return m_x_y - K * (1 - s_x_y / global_max_stddev) * (m_x_y - global_min);
85  }
86 
87 # endif // ! MLN_INCLUDE_ONLY
88 
89  } // end of namespace scribo::binarization::internal
90 
91  } // end of namespace scribo::binarization
92 
93 } // end of namespace scribo
94 
95 #endif // ! SCRIBO_BINARIZATION_INTERNAL_WOLF_FORMULA_HH