level_transform.cc 2.01 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
// Copyright (C) 2007 EPITA Research and Development Laboratory
//
// This file is part of the Olena Library.  This library is free
// software; you can redistribute it and/or modify it under the terms
// of the GNU General Public License version 2 as published by the
// Free Software Foundation.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this library; see the file COPYING.  If not, write to
// the Free Software Foundation, 51 Franklin Street, Fifth Floor,
// Boston, MA 02111-1307, USA.
//
// As a special exception, you may use this file as part of a free
// software library without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to
// produce an executable, this file does not by itself cause the
// resulting executable to be covered by the GNU General Public
// License.  This exception does not however invalidate any other
// reasons why the executable file might be covered by the GNU General
// Public License.

28
/*! \file tests/level_transform.cc
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
 *
 * \brief Tests on mln::level::transform
 */

#include <cmath>

#include <mln/core/image2d_b.hh>
#include <mln/level/transform.hh>
#include <mln/debug/iota.hh>


struct mysqrt : mln::Function_v2v<mysqrt>
{
  typedef unsigned short result;
  result operator()(unsigned short c) const
  {
    return result( std::sqrt(float(c)) );
  }
};



int main()
{
  using namespace mln;

  const unsigned size = 10000;
  image2d_b<unsigned short>
    ima(size, size);

  (std::cout << "iota... ").flush(); 
  debug::iota(ima);
  std::cout << "done" << std::endl;

  (std::cout << "transform... ").flush(); 
  level::transform(ima, mysqrt(), ima);
  std::cout << "done" << std::endl;
}