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world/inter_pixel/compute.hh
1 // Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
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25 
26 #ifndef MLN_WORLD_INTER_PIXEL_COMPUTE_HH
27 # define MLN_WORLD_INTER_PIXEL_COMPUTE_HH
28 
32 
33 # include <mln/core/concept/image.hh>
34 # include <mln/core/concept/function.hh>
35 
36 # include <mln/core/image/dmorph/image_if.hh>
37 # include <mln/trait/ch_value.hh>
38 
39 # include <mln/world/inter_pixel/is_separator.hh>
40 # include <mln/world/inter_pixel/separator_to_pixels.hh>
41 
42 
43 namespace mln
44 {
45 
46  namespace world
47  {
48 
49  namespace inter_pixel
50  {
51 
52 
53  template <typename I, typename F>
55  compute(const Image<I>& input, const Function_vv2v<F>& f);
56 
57 
58 
59 # ifndef MLN_INCLUDE_ONLY
60 
61  template <typename I, typename F>
62  inline
64  compute(const Image<I>& input_, const Function_vv2v<F>& f_)
65  {
66  mln_trace("world::inter_pixel::compute");
67 
68  const I& input = exact(input_);
69  const F& f = exact(f_);
70 
71  mln_precondition(input.is_valid());
72 
73  typedef mln_unmorph(I) I_;
74  typedef mln_ch_value(I_, mln_result(F)) O_;
75  O_ output_;
76  initialize(output_, input.unmorph_());
77 
79  O output(output_, is_separator());
80 
81  mln_piter(O) e(output.domain());
82  for_all(e)
83  {
84  mln_site(I) p1, p2;
85  separator_to_pixels(e, p1, p2);
86  output(e) = f(input(p1), input(p2));
87  }
88 
89  return output;
90  }
91 
92 # endif // ! MLN_INCLUDE_ONLY
93 
94  } // end of namespace mln::world::inter_pixel
95 
96  } // end of namespace mln::world
97 
98 } // end of namespace mln
99 
100 #endif // ! MLN_WORLD_INTER_PIXEL_COMPUTE_HH