[Olena-patches] proto-1.0 397: Util function : set outsides boundaries at the same value of image boundaries.

https://svn/svn/oln/prototypes/proto-1.0/olena Index: ChangeLog from Nicolas Widynski &lt;nicolas.widynski(a)lrde.epita.fr&gt; Util function : set outsides boundaries at the same value of image boundaries. * oln/utils/clean_boundaries.hh: New. To clean image boundaries. clean_boundaries.hh | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) Index: oln/utils/clean_boundaries.hh --- oln/utils/clean_boundaries.hh (revision 0) +++ oln/utils/clean_boundaries.hh (revision 0) @@ -0,0 +1,79 @@ +// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 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, 59 Temple Place - Suite 330, 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. + +#ifndef OLN_UTILS_CLEAN_BOUNDARIES_HH +# define OLN_UTILS_CLEAN_BOUNDARIES_HH + +# include <oln/core/abstract/image.hh> +# include <oln/core/1d/image1d.hh> +# include <oln/core/2d/image2d.hh> + +namespace oln { + + namespace utils { + + namespace impl { + + template <typename T> + void clean_boundaries_(image1d<T>& ima) + { + ima(-1) = ima(0); + ima(ima.size().nindices()) = ima(ima.size().nindices() - 1); + } + + template <typename T> + void clean_boundaries_(image2d<T>& ima) + { + for (int j = 0; j < ima.size().ncols(); j++) + { + ima(-1, j) = ima(0, j); + ima(ima.size().nrows(), j) = ima(ima.size().nrows() - 1, j); + } + for (int j = 0; j < ima.size().nrows(); j++) + { + ima(j, -1) = ima(j, 0); + ima(j, ima.size().ncols()) = ima(j, ima.size().ncols() - 1); + } + } + + + } // end of namespace oln::utils::impl + + + // set outsides boundaries of the image at the boundary value. + template <typename I> + void clean_boundaries(abstract::image<I>& input) + { + if (input.size().border() != 0) + impl::clean_boundaries_(input.exact()); + } + + } // end of namespace oln::utils + +} // end of namespace oln + +#endif // ! OLN_UTILS_CLEAN_BOUNDARIES_HH