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resize_equal.hh
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26 
27 #ifndef MLN_BORDER_RESIZE_EQUAL_HH
28 # define MLN_BORDER_RESIZE_EQUAL_HH
29 
34 
35 # include <mln/border/resize.hh>
36 
37 
38 namespace mln
39 {
40 
41  namespace border
42  {
43 
44  // FIXEM: Doc!
51  template <typename I, typename J>
52  void
53  resize_equal(const Image<I>& ima1, const Image<J>& ima2);
54 
55 
56 
57 # ifndef MLN_INCLUDE_ONLY
58 
59  template <typename I, typename J>
60  inline
61  void
62  resize_equal(const Image<I>& ima1_, const Image<J>& ima2_)
63  {
64  mln_trace("border::resize_equal");
65 
66  // Static checks.
67  mlc_equal(mln_trait_image_ext_domain(I),
68  trait::image::ext_domain::extendable)::check();
69  mlc_equal(mln_trait_image_ext_domain(J),
70  trait::image::ext_domain::extendable)::check();
71 
72  const I& ima1 = exact(ima1_);
73  const J& ima2 = exact(ima2_);
74 
75  // Dynamic tests.
76  mln_precondition(ima1.is_valid());
77  mln_precondition(ima2.is_valid());
78  mln_precondition(ima2.domain() == ima1.domain());
79 
80  unsigned
81  b1 = border::get(ima1),
82  b2 = border::get(ima2);
83 
84  if (b2 > b1)
85  border::resize(ima1, b2);
86  else
87  if (b1 > b2)
88  border::resize(ima2, b1);
89  // else no-op when b2 == b1.
90 
91  }
92 
93 # endif // ! MLN_INCLUDE_ONLY
94 
95  } // end of namespace mln::border
96 
97 } // end of namespace mln
98 
99 
100 #endif // ! MLN_BORDER_RESIZE_EQUAL_HH