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_LINEAR_CONVOLVE_DIRECTIONAL_HH 00027 # define MLN_LINEAR_CONVOLVE_DIRECTIONAL_HH 00028 00032 00033 # include <mln/linear/convolve.hh> 00034 # include <mln/make/w_window_directional.hh> 00035 # include <mln/literal/zero.hh> 00036 00037 00038 00039 namespace mln 00040 { 00041 00042 namespace linear 00043 { 00044 00057 template <typename I, typename W, unsigned S> 00058 mln_ch_convolve(I, W) 00059 convolve_directional(const Image<I>& input, unsigned dir, W (&weights)[S]); 00060 00061 00062 # ifndef MLN_INCLUDE_ONLY 00063 00064 template <typename I, typename W, unsigned S> 00065 inline 00066 mln_ch_convolve(I, W) 00067 convolve_directional(const Image<I>& input, unsigned dir, W (&weights)[S]) 00068 { 00069 trace::entering("linear::convolve_directional"); 00070 00071 mlc_bool(S % 2 == 1)::check(); 00072 00073 mln_precondition(exact(input).is_valid()); 00074 typedef mln_site(I) P; 00075 mln_precondition(dir < P::dim); 00076 00077 typedef mln_delta(P) D; 00078 D dp = literal::zero; 00079 ++dp[dir]; 00080 w_window<D,W> w_win = make::w_window_directional(dp, weights); 00081 mln_ch_convolve(I, W) output = convolve(input, w_win); 00082 00083 trace::exiting("linear::convolve_directional"); 00084 return output; 00085 } 00086 00087 # endif // ! MLN_INCLUDE_ONLY 00088 00089 } // end of namespace mln::linear 00090 00091 } // end of namespace mln 00092 00093 00094 #endif // ! MLN_LINEAR_CONVOLVE_DIRECTIONAL_HH