https://svn.lrde.epita.fr/svn/oln/prototypes/proto-1.0 ChangeLog | 15 ++++ img/Makefile.am | 14 +++- img/squares-lc.pgm | 5 + oln/makefile.src | 1 oln/morpho/lower_completion.hh | 124 ++++++++++++++++++++++++++++++++++++ tests/morpho/tests/lower_completion | 25 +++++++ 6 files changed, 182 insertions(+), 2 deletions(-) Index: olena/ChangeLog from Roland Levillain &lt;roland(a)lrde.epita.fr&gt; Add lower completion. * oln/morpho/lower_completion.hh: New file * oln/makefile.src (OLN_DEP): Add morpho/lower_completion.hh. * olena/img/squares.pgm, olena/img/squares-lc.pgm: New images. * img/Makefile.am (SOURCE_IMGS): Add $(srcdir)/16x16.pbm, $(srcdir)/16x16.pbm.gz, $(srcdir)/16x16.pgm, $(srcdir)/16x16.pgm.gz, $(srcdir)/16x16.ppm, $(srcdir)/16x16.ppm.gz, $(srcdir)/marker.pbm, $(srcdir)/mask.pbm, $(srcdir)/object.pbm, $(srcdir)/squares-lc.pgm, $(srcdir)/squares.pgm: * tests/morpho/tests/lower_completion: New test. Index: olena/tests/morpho/tests/lower_completion --- olena/tests/morpho/tests/lower_completion (revision 0) +++ olena/tests/morpho/tests/lower_completion (revision 0) @@ -0,0 +1,25 @@ + // -*- C++ -*- +#include "data.hh" +#include "ntg/int.hh" +#include "oln/core/2d/image2d.hh" +#include "oln/core/gen/image_with_nbh.hh" +#include "oln/io/read_image.hh" +#include "oln/io/write_image.hh" +#include "oln/morpho/lower_completion.hh" +#include "oln/ops/cmp.hh" + +using namespace oln; + +bool check() +{ + image2d<ntg::int_u8> raw_input; + raw_input = io::read(rdata("squares.pgm")); + + typedef image_with_nbh<image2d<ntg::int_u8>, neighborhood2d> image_type; + image_type input = join(raw_input, neighb_c4()); + image_type output = morpho::lower_completion<ntg::int_u8>(input); + + image2d<ntg::int_u8> ref_output; + ref_output = io::read(rdata("squares-lc.pgm")); + return !(output == ref_output); +} Index: olena/oln/makefile.src --- olena/oln/makefile.src (revision 194) +++ olena/oln/makefile.src (working copy) @@ -160,6 +160,7 @@ morpho/erosion.hh \ morpho/geodesic_dilation.hh \ morpho/geodesic_erosion.hh \ + morpho/lower_completion.hh \ morpho/opening.hh \ morpho/reconstruction_by_dilation.hh \ morpho/reconstruction_by_erosion.hh \ Index: olena/oln/morpho/lower_completion.hh --- olena/oln/morpho/lower_completion.hh (revision 0) +++ olena/oln/morpho/lower_completion.hh (revision 0) @@ -0,0 +1,124 @@ +// Copyright (C) 2005 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 OLENA_MORPHO_LOWER_COMPLETION_HH +# define OLENA_MORPHO_LOWER_COMPLETION_HH + +# include <queue> + +# include "oln/level/fill.hh" + +namespace oln { + + namespace morpho { + + // FIXME: INPUT should be a scalar image. + template <typename DestValue, typename I> + typename ch_value_type<I, DestValue>::ret + lower_completion(const abstract::image_with_nbh<I>& input) + { + typedef oln_type_of(I, point) point_type; + + /*------------------------------------------. + | Distance map to the closest lower point. | + `------------------------------------------*/ + + typedef std::queue<point_type> queue_type; + queue_type q; + typename ch_value_type<I, bool>::ret processed(input.size()); + level::fill (processed, false); + + typename ch_value_type<I, unsigned>::ret distance(input.size()); + unsigned cur_dist = 1; + + oln_type_of(I, fwd_piter) p(input.size()); + for_all_p (p) + { + distance[p] = 0; + oln_type_of(I, niter) n(input); + for_all_n_of_p (n, p) + if (input.hold(n) && input[n] < input[p]) + { + q.push(p); + processed[p] = true; + } + } + + typedef oln_pt_type_of(point_type, grid) grid_type; + typedef oln_grd_type_of(grid_type, dimvalue) dimvalue_type; + const unsigned dim = dimvalue_type::val; + // Fictitious point, used as a separator between ranges of + // points in the queue. + point_type fictitious; + for (unsigned i = 0; i < dim; ++i) + fictitious.nth (i) = -1; + q.push(fictitious); + + while (!q.empty()) + { + point_type p = q.front(); + q.pop(); + if (p == fictitious) + { + if (!q.empty()) + { + q.push(fictitious); + ++cur_dist; + } + } + else + { + distance[p] = cur_dist; + oln_type_of(I, niter) n(input); + for_all_n_of_p (n, p) + if (input.hold(n) && input[n] == input[p] && !processed[n]) + { + q.push(n); + processed[n] = true; + } + } + } + + /*-------------------. + | Lower completion. | + `-------------------*/ + + typename ch_value_type<I, DestValue>::ret output(input.size()); + for_all_p (p) + if (distance[p] == ntg_zero_val(DestValue)) + output[p] = cur_dist * input[p].value(); + else + output[p] = cur_dist * input[p].value() + distance[p].value() - 1; + + return output; + } + + } // end of namespace oln::morpho + +} // end of namespace oln + +#endif // ! OLENA_MORPHO_LOWER_COMPLETION_HH Index: olena/img/Makefile.am --- olena/img/Makefile.am (revision 194) +++ olena/img/Makefile.am (working copy) @@ -1,4 +1,10 @@ SOURCE_IMGS = \ + $(srcdir)/16x16.pbm \ + $(srcdir)/16x16.pbm.gz \ + $(srcdir)/16x16.pgm \ + $(srcdir)/16x16.pgm.gz \ + $(srcdir)/16x16.ppm \ + $(srcdir)/16x16.ppm.gz \ $(srcdir)/chien.pbm \ $(srcdir)/chien.pbm.gz \ $(srcdir)/lena.pbm \ @@ -6,7 +12,11 @@ $(srcdir)/lena.pgm \ $(srcdir)/lena.pgm.gz \ $(srcdir)/lena.ppm \ - $(srcdir)/lena.ppm.gz + $(srcdir)/lena.ppm.gz \ + $(srcdir)/marker.pbm \ + $(srcdir)/mask.pbm \ + $(srcdir)/object.pbm \ + $(srcdir)/squares-lc.pgm \ + $(srcdir)/squares.pgm dist_pkgdata_DATA = $(SOURCE_IMGS) -