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morpho/tree/filter/min.hh
1 // Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE)
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25 
26 #ifndef MLN_MORPHO_TREE_FILTER_MIN_HH
27 # define MLN_MORPHO_TREE_FILTER_MIN_HH
28 
29 # include <mln/core/concept/function.hh>
30 # include <mln/morpho/tree/data.hh>
31 
32 
41 namespace mln
42 {
43 
44  namespace morpho
45  {
46 
47  namespace tree
48  {
49 
50  namespace filter
51  {
52 
53 
62  template <typename T, typename F, typename P>
63  inline
64  void
65  min(const T& tree, Image<F>& f_, const Function_v2b<P>& pred_);
66 
67 
68 
69 
70 # ifndef MLN_INCLUDE_ONLY
71 
72  template <typename T, typename F, typename P>
73  inline
74  void
75  min(const T& tree, Image<F>& f_, const Function_v2b<P>& pred_)
76  {
77  F& f = exact(f_);
78  const P& pred = exact(pred_);
79 
80  mln_trace("mln::morpho::tree::filter::min");
81 
82  mln_ch_value(F, bool) mark;
83  initialize(mark, f);
84  mln::data::fill(mark, false);
85 
86  mln_dn_node_piter(T) n(tree);
87  for_all(n)
88  if (mark(tree.parent(n)) || !pred(n))
89  {
90  f(n) = f(tree.parent(n));
91  mark(n) = true;
92  }
93 
94  }
95 
96 # endif // ! MLN_INCLUDE_ONLY
97 
98  } // end of namespace mln::morpho::tree::filter
99 
100  } // end of namespace mln::morpho::tree
101 
102  } // end of namespace mln::morpho
103 
104 } // end of namespace mln
105 
106 #endif // ! MLN_MORPHO_TREE_FILTER_MIN_HH