$extrastylesheet
Olena  User documentation 2.1
An Image Processing Platform
 All Classes Namespaces Functions Variables Typedefs Enumerations Enumerator Friends Groups Pages
interpolated-tr_image-rotation.cc
1 // Copyright (C) 2013 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 
29 
30 #include <iostream>
31 
32 #include <mln/core/image/image2d.hh>
33 #include <mln/core/image/imorph/interpolated.hh>
34 #include <mln/core/image/imorph/safe.hh>
35 #include <mln/core/image/imorph/tr_image.hh>
36 
37 #include <mln/fun/x2v/bilinear.hh>
38 #include <mln/fun/x2x/rotation.hh>
39 
40 #include <mln/math/pi.hh>
41 
42 #include <mln/algebra/vec.hh>
43 
44 #include <mln/debug/iota.hh>
45 #include <mln/debug/println.hh>
46 
48 #define PRINTLN(Ima) mln::debug::println(#Ima " = ", Ima)
49 
50 
51 int main()
52 {
53  using namespace mln;
54 
55  typedef image2d<float> I;
56  I ima(4, 4);
57  debug::iota(ima);
58  PRINTLN(ima);
59 
60  // Step-by-step approach.
61  {
64  typedef mln::safe_image<I> S;
65  S safe(ima, 0.f);
66  PRINTLN(safe);
67 
69  typedef interpolated<S, fun::x2v::bilinear> B;
70  B inter(safe);
71  PRINTLN(inter);
72 
74  float angle = math::pi / 4;
76  F rotate(angle);
78  R rotated(inter.domain(), inter, rotate);
79  PRINTLN(rotated);
80  }
81 
82  // Equivalent ``one-liner''.
83  {
84  PRINTLN(apply_tr(interpolate<fun::x2v::bilinear>(safe(ima, 0.f).rw()),
86  }
87 }