ChangeLog: 2007-09-17 Guillaume Duhamel &lt;guillaume.duhamel(a)lrde.epita.fr&gt; Add mirroring for borders. * border_mirror.cc: Test file for border mirroring. * border_mirror.hh: Fix border mirroring. --- border_mirror.cc | 61 ++++++++++++++++++++++++ border_mirror.hh | 139 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 200 insertions(+) Index: trunk/milena/sandbox/duhamel/border_mirror.cc =================================================================== --- trunk/milena/sandbox/duhamel/border_mirror.cc (revision 0) +++ trunk/milena/sandbox/duhamel/border_mirror.cc (revision 1121) @@ -0,0 +1,61 @@ +// 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. + +/*! \file tests/border_fill.cc + * + * \brief Tests on mln::border::fill. + */ + +#include "border_mirror.hh" +#include <mln/core/image2d_b.hh> +#include <mln/value/int_u8.hh> +#include <mln/pw/all.hh> +#include <mln/debug/println_with_border.hh> + +using namespace mln; + +int +main (void) +{ + image2d_b<value::int_u8> i1(5, 7); + + // Fill with randomized value. + for (unsigned int i = 0; i < i1.ncells (); ++i) + i1[i] = i;//(i * 4452) % 10; + std::cout << "before mirror" + << std::endl + << std::endl; + debug::println_with_border(i1); + + border::mirror (i1); + std::cout << "after mirror" + << std::endl + << std::endl; + debug::println_with_border(i1); +} + + Index: trunk/milena/sandbox/duhamel/border_mirror.hh =================================================================== --- trunk/milena/sandbox/duhamel/border_mirror.hh (revision 0) +++ trunk/milena/sandbox/duhamel/border_mirror.hh (revision 1121) @@ -0,0 +1,139 @@ +// 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. + +#ifndef MLN_BORDER_MIRROR_HH +# define MLN_BORDER_MIRROR_HH + +/*! \file mln/border/mirror.hh + * + * \brief FIXME. + */ + +# include <mln/core/concept/image.hh> +# include <mln/core/internal/fixme.hh> +# include <mln/level/memset_.hh> +//# include <mln/core/line_piter.hh> +#include <mln/geom/nrows.hh> +#include <mln/geom/ncols.hh> +#include <mln/core/image2d_b.hh> +#include <mln/core/image2d_b.hh> +#include <mln/core/pixel.hh> + + +namespace mln +{ + + namespace border + { + + /*! Mirror the virtual (outer) border of image \p ima with the + * (inner) level contents of this image. + * + * \param[in,out] ima The image whose border is to be mirrored. + * + * \pre \p ima has to be initialized. + * + * \todo Implement it + optimize with memset if possible. + */ + template <typename I> + void mirror(const Fast_Image<I>& ima); + + +# ifndef MLN_INCLUDE_ONLY + + template <typename I> + void mirror(const Fast_Image<I>& ima_) + { + const I& ima = exact(ima_); + mln_precondition(ima.has_data()); + // internal::fixme(); + // FIX + std::size_t border = ima.border (); + std::size_t nbrows = geom::max_row(ima) - geom::min_row(ima); + std::size_t nbcols = geom::max_col(ima) - geom::min_col(ima); + std::size_t real_nbcols = (nbcols + 1) + 2 * border; + std::size_t start = real_nbcols * border + border; + std::size_t s = start; + + // duplicate top left corner + for (std::size_t i = 0; i < border; ++i) + for (std::size_t j = 0; j < border; ++j) + const_cast<I&>(ima)[i * ((nbcols + 1) + 2 * border) + j] = ima[s]; + + // duplicate top left corner + s = start + nbcols; + for (std::size_t i = 0; i < border; ++i) + for (std::size_t j = 1; j <= border; ++j) + const_cast<I&>(ima)[i * ((nbcols + 1) + 2 * border) + (nbcols + border + j)] = ima[s]; + + // duplicate bottom left corner + s = start + (nbrows * real_nbcols); + for (std::size_t i = 1; i <= border; ++i) + for (std::size_t j = 1; j <= border; ++j) + const_cast<I&>(ima)[s - i + (j * (real_nbcols))] = ima[s]; + + // duplicate bottom right corner + s = start + (nbrows * real_nbcols) + nbcols; + for (std::size_t i = 1; i <= border; ++i) + for (std::size_t j = 1; j <= border; ++j) + const_cast<I&>(ima)[s + i + (j * real_nbcols)] = ima[s]; + + // mirror top border + s = start; + for (std::size_t i = 0; i <= nbcols; ++i) + for (std::size_t j = 1; j <= border; ++j) + const_cast<I&>(ima)[s + i - (j * real_nbcols)] = ima[s + i + ((j - 1)* real_nbcols)]; + + // mirror left border + s = start; + for (std::size_t i = 0; i <= nbrows; ++i) + for (std::size_t j = 0; j <= border; ++j) + const_cast<I&>(ima)[s + (i * real_nbcols) - j] = ima[s + (i * real_nbcols) + (j - 1)]; + + // mirror right border + s = start; + for (std::size_t i = 0; i <= nbrows; ++i) + for (std::size_t j = 1; j <= border; ++j) + const_cast<I&>(ima)[s + (i * real_nbcols + nbcols) + j] = ima[s + (i * real_nbcols + nbcols) - (j - 1)]; + + // mirror bottom border + s = start + (nbrows * real_nbcols); + for (std::size_t i = 0; i <= nbcols; ++i) + for (std::size_t j = 1; j <= border; ++j) + const_cast<I&>(ima)[s + i + (j * real_nbcols)] = ima[s + i - ((j - 1)* real_nbcols)]; + + //END FIX + } + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace mln::border + +} // end of namespace mln + + +#endif // ! MLN_BORDER_MIRROR_HH