OpenStructure
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Properties Friends Macros Groups Pages
anisotropic.hh
Go to the documentation of this file.
1 //------------------------------------------------------------------------------
2 // This file is part of the OpenStructure project <www.openstructure.org>
3 //
4 // Copyright (C) 2008-2011 by the OpenStructure authors
5 // Copyright (C) 2003-2010 by the IPLT authors
6 //
7 // This library is free software; you can redistribute it and/or modify it under
8 // the terms of the GNU Lesser General Public License as published by the Free
9 // Software Foundation; either version 3.0 of the License, or (at your option)
10 // any later version.
11 // This library is distributed in the hope that it will be useful, but WITHOUT
12 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 // FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
14 // details.
15 //
16 // You should have received a copy of the GNU Lesser General Public License
17 // along with this library; if not, write to the Free Software Foundation, Inc.,
18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 //------------------------------------------------------------------------------
20 
21 /*
22  authors: Giani Signorell, Ansgar Philippsen
23 */
24 
25 #ifndef IMG_ALG_FILTER_ANISOTROPIC_H
26 #define IMG_ALG_FILTER_ANISOTROPIC_H
27 
28 #include "gaussian.hh"
29 
30 namespace ost { namespace img { namespace alg {
31 
33 public:
34  AnisotropicFilter(Real sigma=1.0);
35 
36  template <typename T, class D>
37  void VisitState(ImageStateImpl<T,D>& s);
38 
39 protected:
40  template <typename T, class D>
41  void lineTransformFW(ImageStateImpl<T, D>& s,
42  ExtentIterator& it,
43  std::vector<T>& tmp_avg,
44  std::vector<T>& tmp_min,
45  std::vector<T>& tmp_max);
46 
47  template <typename T, class D>
48  void lineTransformBW(ImageStateImpl<T,D>& s,
49  ExtentIterator& it,
50  std::vector<T>& tmp_avg,
51  std::vector<T>& tmp_min,
52  std::vector<T>& tmp_max );
53 
54 private:
55  int n_;
56  Real b1_b0_, b2_b0_, b3_b0_;
57 
58  template <typename T>
59  bool is_larger(const T& v1, const T& v2);
60 };
61 
62 }}} // namespaces
63 
64 #endif