Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE) 00002 // 00003 // This file is part of Olena. 00004 // 00005 // Olena is free software: you can redistribute it and/or modify it under 00006 // the terms of the GNU General Public License as published by the Free 00007 // Software Foundation, version 2 of the License. 00008 // 00009 // Olena is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 // General Public License for more details. 00013 // 00014 // You should have received a copy of the GNU General Public License 00015 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00016 // 00017 // As a special exception, you may use this file as part of a free 00018 // software project without restriction. Specifically, if other files 00019 // instantiate templates or use macros or inline functions from this 00020 // file, or you compile this file and link it with other files to produce 00021 // an executable, this file does not by itself cause the resulting 00022 // executable to be covered by the GNU General Public License. This 00023 // exception does not however invalidate any other reasons why the 00024 // executable file might be covered by the GNU General Public License. 00025 00026 #ifndef MLN_MORPHO_THINNING_HH 00027 # define MLN_MORPHO_THINNING_HH 00028 00032 00033 # include <mln/morpho/hit_or_miss.hh> 00034 # include <mln/morpho/thickening.hh> 00035 00036 #include <mln/io/pgm/save.hh> 00037 00038 00039 namespace mln 00040 { 00041 00042 namespace morpho 00043 { 00044 00045 00049 // 00050 template <typename I, typename Wfg, typename Wbg> 00051 mln_concrete(I) 00052 thinning(const Image<I>& input, 00053 const Window<Wfg>& win_fg, const Window<Wbg>& win_bg); 00054 00055 00056 # ifndef MLN_INCLUDE_ONLY 00057 00058 namespace internal 00059 { 00060 00061 template <typename I, typename Wfg, typename Wbg> 00062 inline 00063 void 00064 thinning_tests(const Image<I>& input_, 00065 const Window<Wfg>& win_fg_, 00066 const Window<Wbg>& win_bg_) 00067 { 00068 const I& input = exact(input_); 00069 const Wfg& win_fg = exact(win_fg_); 00070 const Wbg& win_bg = exact(win_bg_); 00071 00072 // Tests. 00073 mln_precondition(input.is_valid()); 00074 mln_precondition(win_fg.is_centered()); 00075 mln_precondition(! win_bg.is_empty()); 00076 mln_precondition((win_fg && win_bg).is_empty()); 00077 00078 // Avoid warnings. 00079 (void) input_; 00080 (void) win_fg_; 00081 (void) win_bg_; 00082 } 00083 00084 } // end of namespace mln::morpho::internal 00085 00086 00087 template <typename I, typename Wfg, typename Wbg> 00088 inline 00089 mln_concrete(I) 00090 thinning(const Image<I>& input, 00091 const Window<Wfg>& win_fg, const Window<Wbg>& win_bg) 00092 { 00093 trace::entering("morpho::thinning"); 00094 00095 00096 internal::thinning_tests(input, win_fg, win_bg); 00097 00098 mln_concrete(I) output = morpho::minus( input, 00099 hit_or_miss(input, win_fg, win_bg) ); 00100 00101 mln_postcondition( complementation( thickening( complementation(input), 00102 win_bg, win_fg ) ) == output); 00103 trace::exiting("morpho::thinning"); 00104 return output; 00105 } 00106 00107 # endif // ! MLN_INCLUDE_ONLY 00108 00109 } // end of namespace mln::morpho 00110 00111 } // end of namespace mln 00112 00113 00114 #endif // ! MLN_MORPHO_THINNING_HH