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opening/approx/structural.hh
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26 
27 #ifndef MLN_MORPHO_OPENING_APPROX_STRUCTURAL_HH
28 # define MLN_MORPHO_OPENING_APPROX_STRUCTURAL_HH
29 
33 
34 # include <mln/morpho/approx/dilation.hh>
35 # include <mln/morpho/approx/erosion.hh>
36 
37 
38 namespace mln
39 {
40 
41  namespace morpho
42  {
43 
44  namespace opening
45  {
46 
47  namespace approx
48  {
49 
56  template <typename I, typename W>
57  mln_concrete(I)
58  structural(const Image<I>& input, const Window<W>& win);
59 
60 
61 
62 # ifndef MLN_INCLUDE_ONLY
63 
64 
65  template <typename I, typename W>
66  inline
67  mln_concrete(I)
68  structural(const Image<I>& input, const Window<W>& win)
69  {
70  mln_trace("morpho::opening::approx::structural");
71 
72  mln_precondition(exact(input).is_valid());
73  mln_precondition(! exact(win).is_empty());
74 
77 
78  mln_concrete(I) output = dilation(erosion(input,
79  win),
80  win::sym(win));
81 
82  mln_postcondition(output <= input);
83 
84  return output;
85  }
86 
87 
88 # endif // ! MLN_INCLUDE_ONLY
89 
90  } // end of namespace mln::morpho::closing::approx
91 
92  } // end of namespace mln::morpho::opening
93 
94  } // end of namespace mln::morpho
95 
96 } // end of namespace mln
97 
98 
99 #endif // ! MLN_MORPHO_OPENING_APPROX_STRUCTURAL_HH