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homogeneous_contrast.hh
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25 
26 #ifndef SCRIBO_PREPROCESSING_HOMOGENEOUS_CONTRAST_HH
27 # define SCRIBO_PREPROCESSING_HOMOGENEOUS_CONTRAST_HH
28 
32 
33 #include <mln/core/image/image2d.hh>
34 #include <mln/core/alias/neighb2d.hh>
35 #include <mln/morpho/attribute/height.hh>
36 #include <mln/morpho/closing/leveling.hh>
37 
38 #include <mln/arith/minus.hh>
39 
40 
41 namespace scribo
42 {
43 
44  namespace preprocessing
45  {
46 
47 
48  using namespace mln;
49 
56  //
57  template <typename I>
58  mln_concrete(I)
59  homogeneous_contrast(const Image<I>& input, unsigned h);
60 
61 
64  //
65  template <typename I>
66  mln_concrete(I)
67  homogeneous_contrast(const Image<I>& input);
68 
69 
70  } // end of namespace scribo::preprocessing
71 
72 } // end of namespace mln
73 
74 
75 # ifndef MLN_INCLUDE_ONLY
76 
77 
78 namespace scribo
79 {
80 
81  namespace preprocessing
82  {
83 
84 
85  template <typename I>
86  mln_concrete(I)
87  homogeneous_contrast(const Image<I>& input_, unsigned h)
88  {
89  mln_trace("scribo::preprocessing::homogeneous_contrast");
90 
91  const I& input = exact(input_);
92  mln_precondition(input.is_valid());
93 
95  mln_concrete(I)
96  output = morpho::closing::leveling(input, c4(), acc, h);
97  arith::minus_inplace(output, input);
98 
99  return output;
100  }
101 
102 
103  template <typename I>
104  mln_concrete(I)
105  homogeneous_contrast(const Image<I>& input)
106  {
107  return homogeneous_contrast(input, 75);
108  }
109 
110 
111  } // end of namespace scribo::preprocessing
112 
113 } // end of namespace mln
114 
115 
116 # endif // ! MLN_INCLUDE_ONLY
117 
118 # endif // SCRIBO_PREPROCESSING_HOMOGENEOUS_CONTRAST_HH