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binarization/threshold.hh
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25 
26 #ifndef MLN_BINARIZATION_THRESHOLD_HH
27 # define MLN_BINARIZATION_THRESHOLD_HH
28 
32 
33 # include <mln/binarization/binarization.hh>
34 # include <mln/fun/v2b/threshold.hh>
35 
36 
37 namespace mln
38 {
39 
40  namespace binarization
41  {
42 
51  template <typename I>
52  mln_ch_value(I, bool)
53  threshold(const Image<I>& input, const mln_value(I) threshold);
54 
55 
56 # ifndef MLN_INCLUDE_ONLY
57 
58  template <typename I>
59  inline
60  mln_ch_value(I, bool)
61  threshold(const Image<I>& input, const mln_value(I) threshold_value)
62  {
63  trace::entering("binarization::threshold");
64 
65  mln_precondition(exact(input).is_valid());
66  mlc_is(mln_trait_value_nature(mln_value(I)),
67  trait::value::nature::scalar)::check();
68 
69  mln_ch_value(I, bool) output(exact(input).domain());
70 
71  // FIXME : threshold value should be a percentage.
72  fun::v2b::threshold< mln_value(I) > f(threshold_value);
73 
74  output = mln::binarization::binarization(exact(input), f);
75 
76  trace::exiting("binarization::threshold");
77  return output;
78  }
79 
80 # endif // ! MLN_INCLUDE_ONLY
81 
82  } // end of namespace mln::binarization
83 
84 } // end of namespace mln
85 
86 
87 #endif // ! MLN_BINARIZATION_THRESHOLD_HH