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closing/approx/structural.hh
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25 
26 #ifndef MLN_MORPHO_CLOSING_APPROX_STRUCTURAL_HH
27 # define MLN_MORPHO_CLOSING_APPROX_STRUCTURAL_HH
28 
32 
33 # include <mln/morpho/approx/dilation.hh>
34 # include <mln/morpho/approx/erosion.hh>
35 
36 
37 namespace mln
38 {
39 
40  namespace morpho
41  {
42 
43  namespace closing
44  {
45 
46  namespace approx
47  {
48 
53  template <typename I, typename W>
54  mln_concrete(I)
55  structural(const Image<I>& input, const Window<W>& win);
56 
57 
58 
59 # ifndef MLN_INCLUDE_ONLY
60 
61 
62  template <typename I, typename W>
63  inline
64  mln_concrete(I)
65  structural(const Image<I>& input, const Window<W>& win)
66  {
67  mln_trace("morpho::closing::approx::structural");
68 
69  mln_precondition(exact(input).is_valid());
70  mln_precondition(! exact(win).is_empty());
71 
74 
75  mln_concrete(I) output = erosion(dilation(input,
76  win),
77  win::sym(win));
78 
79  mln_postcondition(output >= input);
80 
81  return output;
82  }
83 
84 
85 # endif // ! MLN_INCLUDE_ONLY
86 
87  } // end of namespace mln::morpho::closing::approx
88 
89  } // end of namespace mln::morpho::closing
90 
91  } // end of namespace mln::morpho
92 
93 } // end of namespace mln
94 
95 
96 #endif // ! MLN_MORPHO_CLOSING_APPROX_STRUCTURAL_HH