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Olena  User documentation 2.1
An Image Processing Platform
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resize_sub_image.cc
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
4 //
5 // Olena is free software: you can redistribute it and/or modify it under
6 // the terms of the GNU General Public License as published by the Free
7 // Software Foundation, version 2 of the License.
8 //
9 // Olena is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
16 //
17 // As a special exception, you may use this file as part of a free
18 // software project without restriction. Specifically, if other files
19 // instantiate templates or use macros or inline functions from this
20 // file, or you compile this file and link it with other files to produce
21 // an executable, this file does not by itself cause the resulting
22 // executable to be covered by the GNU General Public License. This
23 // exception does not however invalidate any other reasons why the
24 // executable file might be covered by the GNU General Public License.
25 
26 #include <mln/core/image/image2d.hh>
27 #include <mln/core/image/dmorph/sub_image.hh>
28 #include <mln/core/image/dmorph/image_if.hh>
29 #include <mln/fun/p2b/chess.hh>
30 
31 #include <mln/border/get.hh>
32 #include <mln/literal/origin.hh>
33 #include <mln/border/resize.hh>
34 
35 struct my_box2d : mln::Function_v2b< my_box2d >
36 {
37  my_box2d(const mln::box2d& b)
38  : b_(b)
39  {
40  }
41  mln::box2d b_;
42  bool operator()(const mln::point2d& p) const
43  {
44  return b_.has(p);
45  }
46 };
47 
48 
49 
50 int main()
51 {
52  using namespace mln;
53 
54  typedef image2d<int> I;
55  unsigned border = 42;
56  //unsigned new_border = 51;
57 
58  box2d b(literal::origin, point2d(1,1));
59  I ima(3,3, border);
60 
61  mln_assertion(border::get(ima) == border);
62  sub_image<I, box2d> sub(ima, b);
63  mln_assertion( sub.has (point2d(2,2)) == false &&
64  sub.has(point2d(2,2)) == false );
65 
66  // A subimage has no border so it cannot be resized => we get a compilation error as expected.
67  // border::resize(sub, new_border);
68 }