URL: https://svn.lrde.epita.fr/svn/oln/trunk/milena ChangeLog: 2008-01-18 Guillaume Duhamel <guillaume.duhamel@lrde.epita.fr> Add tools for display in random color a labeled image. * mln/draw/label.hh: New function which creates a color image from a labeled image. * tests/draw/label.cc: New test for that. --- mln/draw/label.hh | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/draw/label.cc | 59 +++++++++++++++++++++++++ 2 files changed, 180 insertions(+) Index: trunk/milena/tests/draw/label.cc =================================================================== --- trunk/milena/tests/draw/label.cc (revision 0) +++ trunk/milena/tests/draw/label.cc (revision 1674) @@ -0,0 +1,59 @@ +// Copyright (C) 2007, 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. + +/*! \file tests/draw/label.cc + * + * \brief Tests on mln::draw::label. + */ + + +#include <mln/core/image2d.hh> +#include <mln/debug/iota.hh> +#include <mln/value/rgb8.hh> +#include <mln/io/ppm/save.hh> +#include <mln/draw/label.hh> +#include <mln/literal/all.hh> + +#include <mln/core/image2d.hh> +#include <mln/io/pbm/load.hh> +#include <mln/core/neighb2d.hh> +#include <mln/labeling/blobs.hh> +#include <mln/display/save_and_show.hh> + +#include "tests/data.hh" + + +int +main() +{ + using namespace mln; + image2d<bool> input = io::pbm::load(MLN_IMG_DIR "/picasso.pbm"); + unsigned n; + image2d<unsigned> ima = labeling::blobs(input, c4(), n); + image2d<value::rgb8> out = draw::label (ima, literal::black); + display::save_and_show(out, "display", 1); +} Index: trunk/milena/mln/draw/label.hh =================================================================== --- trunk/milena/mln/draw/label.hh (revision 0) +++ trunk/milena/mln/draw/label.hh (revision 1674) @@ -0,0 +1,121 @@ +// Copyright (C) 2007, 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_DRAW_LABEL_HH +# define MLN_DRAW_LABEL_HH + +/*! \file mln/draw/label.hh + * + * \brief Draw a random color image from a label image. + */ + +# include <mln/core/clone.hh> +# include <mln/core/concept/image.hh> +# include <mln/pw/image.hh> +# include <mln/pw/cst.hh> + +# include <mln/trait/image_from_mesh.hh> +# include <mln/core/image_if_value.hh> +# include <mln/value/rgb8.hh> +# include <mln/level/fill.hh> +# include <mln/level/paste.hh> +# include <mln/core/p_set.hh> +# include <mln/metal/is_not.hh> +# include <mln/core/image_if_value.hh> +# include <mln/debug/println.hh> + +namespace mln +{ + + namespace draw + { + + /*! Draw a new image from a data (int, unsigned, int_u8, etc...) label image. + * + * \param[in] input The input image. + * \param[in] background The value to fill background output. + * + * \return A rgb8 image. + * + * \pre \p input has to be initialized. + * + */ + template <typename I> + typename trait::image_from_mesh < mln_mesh(I), value::rgb8 >::ret + label(Image<I>& input, const value::rgb8& background); + + +# ifndef MLN_INCLUDE_ONLY + + template <typename I> + typename trait::image_from_mesh < mln_mesh(I), value::rgb8 >::ret + label(Image<I>& input, const value::rgb8& background) + { + typedef mln_value(I) V; + typedef mln_ch_value(I, value::rgb8) O; + typedef const mln::pset_if<mln_pset(I), mln::fun::eq_p2b_expr_<mln::pw::value_<I>, mln::pw::cst_<V> > > F; + + I in = exact(input); + mln_precondition(in.has_data()); + I ref = clone(in); + O out (in.domain ()); + + level::fill(out, background); + mln_piter(I) p (out.domain()); + for_all (p) + { + if (ref(p) == 0) + continue; + value::rgb8 color; + while (1) + { + int r = rand() % 256; + int g = rand() % 256; + int b = rand() % 256; + if (r + g + b < 50) + continue; + color = value::rgb8(r, g, b); + break; + } + V val = ref(p); + image_if_value<I> ima_if = ref | val; + mln_piter(F) l (ima_if.domain()); + for_all (l) + out(l) = color; + level::fill(ima_if, 0); + } + return out; + } + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace mln::draw + +} // end of namespace mln + + +#endif // ! MLN_DRAW_LINE_HH