[Olena-patches] cleanup-2008 2472: Add nearest neighbor interpolation.

https://svn.lrde.epita.fr/svn/oln/branches/cleanup-2008/milena Index: ChangeLog from Ugo Jardonnet &lt;ugo.jardonnet(a)lrde.epita.fr&gt; Add nearest neighbor interpolation. * mln/fun/x2x/interpol/nneighbor.hh: Add this interpolation. * mln/fun/x2x/interpol/bilinear.hh: Fix include. * mln/fun/x2x/interpol/linear.hh: Fix include. * mln/fun/x2x/interpol/test.cc: Remove. bilinear.hh | 2 + linear.hh | 2 + nneighbor.hh | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 103 insertions(+) Index: mln/fun/x2x/interpol/bilinear.hh --- mln/fun/x2x/interpol/bilinear.hh (revision 2472) +++ mln/fun/x2x/interpol/bilinear.hh (working copy) @@ -31,6 +31,8 @@ # include <mln/core/image/image2d.hh> # include <mln/core/concept/function.hh> # include <mln/fun/internal/selector.hh> +# include <mln/convert/to.hh> +# include <mln/algebra/vec.hh> /*! \file mln/fun/x2x/interpol/bilinear.hh * Index: mln/fun/x2x/interpol/linear.hh --- mln/fun/x2x/interpol/linear.hh (revision 2472) +++ mln/fun/x2x/interpol/linear.hh (working copy) @@ -36,6 +36,8 @@ # include <mln/core/image/image1d.hh> # include <mln/core/concept/function.hh> # include <mln/fun/internal/selector.hh> +# include <mln/convert/to.hh> +# include <mln/algebra/vec.hh> namespace mln { Index: mln/fun/x2x/interpol/nneighbor.hh --- mln/fun/x2x/interpol/nneighbor.hh (revision 0) +++ mln/fun/x2x/interpol/nneighbor.hh (revision 0) @@ -0,0 +1,99 @@ +// Copyright (C) 2008 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_FUN_X2X_INTERPOL_NNEIGHBOR_HH +# define MLN_FUN_X2X_INTERPOL_NNEIGHBOR_HH + +# include <mln/core/concept/function.hh> +# include <mln/fun/internal/selector.hh> +# include <mln/algebra/vec.hh> +# include <mln/convert/to.hh> + +/*! \file mln/fun/x2x/interpol/nneighbor.hh + * + * \brief Define a nneighbor interpolation of values from an underlying image + */ + +namespace mln +{ + + namespace fun + { + + namespace x2x + { + + namespace interpol + { + + template < typename I > + struct nneighbor + : public fun::internal::selector_<const algebra::vec<3,float>, + // 3,float is a dummy parameter (real is n,T) + mln_value(I), nneighbor<I> >::ret + { + typedef mln_value(I) result; + + nneighbor(const I& ima); + + template < unsigned n, typename T > + mln_value(I) + operator()(const algebra::vec<n,T>& x) const; + + const I& ima; + }; + + +# ifndef MLN_INCLUDE_ONLY + + template < typename I > + nneighbor<I>::nneighbor(const I& ima) : ima(ima) + { + } + + template < typename I > + template < unsigned n, typename T > + mln_value(I) + nneighbor<I>::operator()(const algebra::vec<n,T>& x) const + { + mln_psite(I) p = convert::to<mln_psite(I)>(x); + return ima(p); + } + + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace mln::fun::x2x::interpol + + } // end of namespace mln::fun::x2x + + } // end of namespace mln::fun + +} // end of namespace mln + + +#endif // ! MLN_FUN_X2X_INTERPOL_NNEIGHBOR_HH