* green/mln/fun/x2v : New directory. * green/mln/fun/x2v/sampler.hh : New library file. --- trunk/milena/sandbox/ChangeLog | 7 ++ trunk/milena/sandbox/green/mln/fun/x2p/sampler.hh | 107 +++++++++++++++++++++ 2 files changed, 114 insertions(+), 0 deletions(-) create mode 100644 trunk/milena/sandbox/green/mln/fun/x2p/sampler.hh diff --git a/trunk/milena/sandbox/ChangeLog b/trunk/milena/sandbox/ChangeLog index 2530228..be92af7 100644 --- a/trunk/milena/sandbox/ChangeLog +++ b/trunk/milena/sandbox/ChangeLog @@ -1,5 +1,12 @@ 2009-09-11 Yann Jacquelet <jacquelet@lrde.epita.fr> + Save work in progress for histo and hsl (interpolation part). + + * green/mln/fun/x2v : New directory. + * green/mln/fun/x2v/sampler.hh : New library file. + +2009-09-11 Yann Jacquelet <jacquelet@lrde.epita.fr> + Save work in progress for histo and hsl. * green/mln/accu/stat/histo3d_hsl.hh : New library file. diff --git a/trunk/milena/sandbox/green/mln/fun/x2p/sampler.hh b/trunk/milena/sandbox/green/mln/fun/x2p/sampler.hh new file mode 100644 index 0000000..10b482b --- /dev/null +++ b/trunk/milena/sandbox/green/mln/fun/x2p/sampler.hh @@ -0,0 +1,107 @@ +// Copyright (C) 2008, 2009 EPITA Research and Development Laboratory (LRDE) +// +// This file is part of Olena. +// +// Olena is free software: you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the Free +// Software Foundation, version 2 of the License. +// +// Olena 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 Olena. If not, see <http://www.gnu.org/licenses/>. +// +// As a special exception, you may use this file as part of a free +// software project 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_X2V_SAMPLER_HH +# define MLN_FUN_X2V_SAMPLER_HH + +# 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 +/// +/// Define a sampling process to attach real coordonnates to discrete ones. + +namespace mln +{ + + namespace fun + { + + namespace x2v + { + + /// Define a sampling process to attach real coordonnates to a discrete + /// grid. + + // min | | | | | | | | max + // + // h = (max-min)/q (division reelle) + // i = (val-min)/h (division entiere) + // + // + // Hue [0,360°], q = 8 bits ==> h = 45° , 0/45/90/135/180/225/270/315/360 + // Sat [0,1] , q = 8 bits ==> h = 0.125 + // Lum [0,1] , q = 8 bits ==> h = 0.125 + + template < typename I > + struct sampler : public Function_v2v< sampler<I> > + { + typedef mln_value(I) result; + + sampler(const I& ima); + + /// Bilinear filtering on 2d images. + template <typename T> + mln_value(I) + operator()(const algebra::vec<2,T>& v) const; + + template <typename T> + mln_value(I) + operator()(const algebra::vec<3,T>& v) const; + + const I& ima; + }; + + +# ifndef MLN_INCLUDE_ONLY + + template <typename I> + bilinear<I>::bilinear(const I& ima) : ima(ima) + { + mlc_bool(I::psite::dim == 3)::check(); + } + + template <typename I> + template <typename T> + mln_value(I) + sampler<I>::operator()(const algebra::vec<3,T>& v) const + { + + return convert::to<mln_value(I)>(res); + } + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace mln::fun::x2v + + } // end of namespace mln::fun + +} // end of namespace mln + + +#endif // ! MLN_FUN_X2V_SAMPLER_HH -- 1.5.6.5