[Olena-patches] milena r3382: Merge leveling and algebraic filters into connected filter

URL: https://svn.lrde.epita.fr/svn/oln/trunk/milena ChangeLog: 2009-02-18 Edwin Carlinet &lt;carlinet(a)lrde.epita.fr&gt; Merge leveling and algebraic filters into connected filter. * mln/canvas/morpho/connected_filter.hh: File merging the two filters. * sandbox/edwin/filtres/connectes/connected_filter.hh: Add static tests about accumaltors properties when calling directly algebraic and leveling filters. Add leveling and algebraic facade. * sandbox/edwin/filtres/connectes/filter.cc: Fix bugs. * tests/canvas/morpho/connected_filter.cc: Test file for connected filters. --- mln/canvas/morpho/connected_filter.hh | 601 ++++++++++++++++++++ sandbox/edwin/filtres/connectes/connected_filter.hh | 45 + sandbox/edwin/filtres/connectes/filter.cc | 40 + tests/canvas/morpho/connected_filter.cc | 75 ++ 4 files changed, 755 insertions(+), 6 deletions(-) Index: trunk/milena/tests/canvas/morpho/connected_filter.cc =================================================================== --- trunk/milena/tests/canvas/morpho/connected_filter.cc (revision 0) +++ trunk/milena/tests/canvas/morpho/connected_filter.cc (revision 3382) @@ -0,0 +1,75 @@ + + +#include <mln/core/image/image2d.hh> +#include <mln/io/pgm/all.hh> +#include <mln/util/timer.hh> +#include <mln/core/alias/neighb2d.hh> +#include <mln/morpho/attribute/volume.hh> +#include <mln/morpho/attribute/card.hh> +#include "connected_filter.hh" + +int main(int argc, char** argv) +{ + using namespace mln; + using value::int_u8; + + std::cout << "Leveling filter test" << std::endl; + + typedef mln::image2d<int_u8> I; + I lena; + + float elapsed; + mln::util::timer chrono; + mln::morpho::attribute::volume<I> c; + mln::morpho::attribute::card<I> c2; + int lambda = atoi(argv[1]); + + mln::io::pgm::load(lena, "../../../../img/lena.pgm"); + I out; + + std::cout << "Test algebraic" << std::endl; + chrono.start(); + out = mln::canvas::morpho::connected_filter(lena, c4(), c2, lambda, true); + elapsed = chrono.stop(); + std::cout << "(auto) " << elapsed << "s" << std::endl; + mln::io::pgm::save(out, "alg_auto.pgm"); + + chrono.start(); + out = mln::canvas::morpho::algebraic_filter(lena, c4(), c2, lambda, true); + elapsed = chrono.stop(); + std::cout << "(fast) " << elapsed << "s" << std::endl; + mln::io::pgm::save(out, "alg_fast.pgm"); + + chrono.start(); + out = mln::canvas::morpho::algebraic_filter(lena, c4(), c2, lambda, true); + elapsed = chrono.stop(); + std::cout << "(slow) " << elapsed << "s" << std::endl; + mln::io::pgm::save(out, "alg_slow.pgm"); + +// Try force algebraic dispatch with wrong accu (volume). +// out = mln::canvas::morpho::algebraic_filter(lena, c4(), c, lambda, true); + + std::cout << "Test leveling" << std::endl; + chrono.start(); + out = mln::canvas::morpho::connected_filter(lena, c4(), c, lambda, true); + elapsed = chrono.stop(); + std::cout << "(auto) " << elapsed << "s" << std::endl; + mln::io::pgm::save(out, "lev_auto.pgm"); + + chrono.start(); + out = mln::canvas::morpho::leveling_filter(lena, c4(), c, lambda, true); + elapsed = chrono.stop(); + std::cout << "(fast) " << elapsed << "s" << std::endl; + mln::io::pgm::save(out, "lev_fast.pgm"); + + chrono.start(); + out = mln::canvas::morpho::leveling_filter(lena, c4(), c, lambda, true); + elapsed = chrono.stop(); + std::cout << "(slow) " << elapsed << "s" << std::endl; + mln::io::pgm::save(out, "lev_slow.pgm"); + +// Try force leveling dispatch with wrong accu (card). +// mln::canvas::morpho::leveling_filter(lena, c4(), c2, lambda, true); + + +} Index: trunk/milena/mln/canvas/morpho/connected_filter.hh =================================================================== --- trunk/milena/mln/canvas/morpho/connected_filter.hh (revision 0) +++ trunk/milena/mln/canvas/morpho/connected_filter.hh (revision 3382) @@ -0,0 +1,601 @@ +// Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory +// (LRDE) +// +// 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_CANVAS_MORPHO_CONNECTED_FILTER_HH +# define MLN_CANVAS_MORPHO_CONNECTED_FILTER_HH + +/// \file mln/canvas/morpho/connected_filter.hh +/// +/// Connected filters dispatch (algebraic & leveling filters). +/// +# include <mln/core/concept/image.hh> +# include <mln/core/concept/neighborhood.hh> +# include <mln/core/concept/accumulator.hh> + +# include <mln/trait/accumulators.hh> + +# include <mln/level/sort_psites.hh> +# include <mln/level/sort_offsets.hh> + + +namespace mln { + namespace canvas { + namespace morpho { + + // Facade Fwd Declaration + template <typename I, typename N, typename A> + mln_concrete(I) + connected_filter(const Image<I>& input, const Neighborhood<N>& nbh, + const Accumulator<A>& a, const typename A::result& lambda, + bool increasing); + + template <typename I, typename N, typename A> + mln_concrete(I) + leveling_filter(const Image<I>& input, const Neighborhood<N>& nbh, + const Accumulator<A>& a, const typename A::result& lambda, + bool increasing); + + template <typename I, typename N, typename A> + mln_concrete(I) + algebraic_filter(const Image<I>& input, const Neighborhood<N>& nbh, + const Accumulator<A>& a, const typename A::result& lambda, + bool increasing); + +# ifndef MLN_INCLUDE_ONLY + + namespace impl { + + template <typename A, typename I> + void take_as_init_fastest (trait::accumulator::when_pix::use_none, A& accu, + const I& input, const unsigned p) + { + accu.take_as_init (); + } + + template <typename A, typename I, typename P> + void take_as_init (trait::accumulator::when_pix::use_p, A& accu, + const I& input, const P& p) + { + accu.take_as_init (p); + } + + template <typename A, typename I, typename P> + void take_as_init (trait::accumulator::when_pix::use_none, A& accu, + const I& input, const P& p) + { + accu.take_as_init (p); + } + + template <typename A, typename I, typename P> + void take_as_init (trait::accumulator::when_pix::use_pix, A& accu, + const I& input, const P& p) + { + accu.take_as_init (make::pix(input, p)); + } + + template <typename A, typename I, typename P> + void take_as_init (trait::accumulator::when_pix::use_v, A& accu, + const I& input, const P& p) + { + accu.take_as_init (make::pix(input, p)); + } + + template <typename A, typename I> + void take_as_init_fastest (trait::accumulator::when_pix::use_v, A& accu, + const I& input, const unsigned p) + { + accu.take_as_init (input.element (p)); + } + + + template <typename A, typename I, typename P> + void take_as_init (A& accu, const I& input, const P& p) + { + take_as_init (mln_trait_accumulator_when_pix(A)(), accu, input, p); + } + + template <typename A, typename I, typename P> + void take_as_init_fastest (A& accu, const I& input, const P& p) + { + take_as_init_fastest (mln_trait_accumulator_when_pix(A)(), accu, input, p); + } + + + namespace generic { + + + //////////////////////// + /// Generic version. /// + //////////////////////// + + + template <typename I> + static inline + mln_psite(I) + find_root(I& parent, const mln_psite(I) & x) + { + if (parent(x) == x) + return x; + else + return parent(x) = find_root(parent, parent(x)); + } + + template <typename I, typename N, typename S, typename A> + mln_concrete(I) + connected_filter (const Image<I>& input_, + const Neighborhood<N>& nbh_, + const Site_Set<S>& s_, + const Accumulator<A>& a_, + const typename A::result& lambda) + { + trace::entering("canvas::morpho::impl::generic::connected_filter"); + // FIXME: Test?! + + const I& input = exact(input_); + const N& nbh = exact(nbh_); + const S& s = exact(s_); + (void)a_; // To avoid warning at compilation + + mln_concrete(I) output; + initialize(output, input); + + // Local type. + typedef mln_psite(I) P; + + + // Auxiliary data. + mln_ch_value(I, bool) deja_vu; + mln_ch_value(I, bool) activity; + mln_ch_value(I, P) parent; + mln_ch_value(I, A) data; + + // Initialization. + { + initialize(deja_vu, input); + mln::data::fill(deja_vu, false); + initialize(activity, input); + mln::data::fill(activity, true); + initialize(parent, input); + initialize(data, input); + //a.init(); // init required. + } + + // First pass. + { + mln_fwd_piter(S) p(s); // s required. + mln_niter(N) n(nbh, p); + + for_all(p) + { + // Make set. + { + parent(p) = p; + + // Check accumulator trait to handle argument type (Pix or Site). + take_as_init (data(p), input, p); + } + + for_all(n) + if (input.domain().has(n) && deja_vu(n)) + { + //do_union(n, p); + P r = find_root(parent, n); + if (r != p) + { + if (input(r) == input(p) || (activity(r) && (data(r) < lambda))) // Equiv(r, p) + // Either a flat zone or the component of r is still growing. + { + /* FIXME: Same remark as above concerning the + initialization of data(p); instead of + + data(p).take(data(r)); + + we should (or could) have + + unite_data(p, r); + + so as to keep the generic aspect of this canvas + (as long as the set of acceptable types for the + template parameter A is not bound). */ + + data(p).take(data(r)); + parent(r) = p; + if (activity(r) == false) + activity(p) = false; + } + else + { + activity(p) = false; + } + } + } + deja_vu(p) = true; + } + } + + // Second pass. + { + mln_bkd_piter(S) p(s); + for_all(p) + if (parent(p) == p) // p is root. + output(p) = input(p); + else + output(p) = output(parent(p)); + } + + trace::exiting("canvas::morpho::impl::generic::connected_filter"); + return output; + } + + } // end of namespace mln::canvas::morpho::impl::generic + + + //////////////////////// + /// Fastest version. /// + //////////////////////// + + template <typename I> + inline + unsigned + find_root_fastest(I& parent, unsigned x) + { + if (parent.element(x) == x) + return x; + else + return parent.element(x) = find_root_fastest(parent, parent.element(x)); + } + + template <typename I, typename N, typename A> + mln_concrete(I) + connected_filter_fastest(const Image<I>& input_, + const Neighborhood<N>& nbh_, + const util::array<unsigned>& s, + const Accumulator<A>& a_, + const typename A::result& lambda) + { + trace::entering("canvas::morpho::impl::connected_filter_fastest"); + + // FIXME: Tests? + + const I& input = exact(input_); + const N& nbh = exact(nbh_); + + mln_concrete(I) output; + initialize(output, input); + + // Local type. + typedef mln_psite(I) P; + + // Auxiliary data. + mln_ch_value(I, bool) deja_vu; + mln_ch_value(I, bool) activity; + mln_ch_value(I, unsigned) parent; + mln_ch_value(I, A) data; + + // Initialization. + { + initialize(deja_vu, input); + mln::data::fill(deja_vu, false); + initialize(activity, input); + mln::data::fill(activity, true); + initialize(parent, input); + mln::data::fill(parent, 0); + initialize(data, input); + } + + util::array<int> dp = offsets_wrt(input, nbh); + const unsigned n_nbhs = dp.nelements(); + const unsigned n_points = s.nelements(); + + // First pass. + { + for (unsigned i = 0; i < n_points; ++i) + { + unsigned p = s[i]; // An offset. + + // Make set. + parent.element(p) = p; + + // Check accumulator trait to handle argument type (Value or None). + take_as_init_fastest (data.element(p), input, p); + + for (unsigned j = 0; j < n_nbhs; ++j) + { + unsigned n = p + dp[j]; + if (!deja_vu.element(n)) + continue; + + unsigned r = find_root_fastest(parent, n); + if (r != p) + { + if (input.element(r) == input.element(p) + || (activity.element(r) + && (data.element(r) < lambda))) + { + data.element(p).take(data.element(r)); + parent.element(r) = p; + if (activity.element(r) == false) + activity.element(p) = false; + } + else + activity.element(p) = false; + } + } + + deja_vu.element(p) = true; + } + } + + + // Second pass. + { + for (int i = n_points - 1; i >= 0 ; --i) + { + unsigned p = s[i]; + if (parent.element(p) == p) // p is root. + output.element(p) = input.element(p); + else + output.element(p) = output.element(parent.element(p)); + } + } + + trace::exiting("canvas::morpho::impl::connected_filter_fastest"); + return output; + } + + + } // end of namespace mln::canvas::morpho::impl + + + + + // Dispatch. + + + namespace internal + { + // Leveling + template <typename I, typename N, typename A> + mln_concrete(I) + leveling_filter_dispatch(metal::false_, + const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& a, + const typename A::result& lambda, + bool increasing) + { + p_array < mln_psite(I) > s = + increasing ? + level::sort_psites_increasing(input) : + level::sort_psites_decreasing(input); + return impl::generic::connected_filter(input, nbh, s, a, lambda); + } + + template <typename I, typename N, typename A> + mln_concrete(I) + leveling_filter_dispatch(metal::true_, + const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& a, + const typename A::result& lambda, + bool increasing) + { + util::array<unsigned> s = + increasing ? + level::sort_offsets_increasing(input) : + level::sort_offsets_decreasing(input); + return impl::connected_filter_fastest(input, nbh, s, a, lambda); + } + + template <typename I, typename N, typename A> + inline + mln_concrete(I) + leveling_filter_dispatch(const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& a, + const typename A::result& lambda, + bool increasing) + { + mlc_or(mlc_equal(mln_trait_accumulator_when_pix(A), + trait::accumulator::when_pix::use_pix), + mlc_equal(mln_trait_accumulator_when_pix(A), + trait::accumulator::when_pix::use_v))::check(); + + enum + { + test = mlc_equal(mln_trait_image_speed(I), + trait::image::speed::fastest)::value + && mlc_equal(mln_trait_accumulator_when_pix(A), + trait::accumulator::when_pix::use_v)::value + && mln_is_simple_neighborhood(N)::value + }; + return leveling_filter_dispatch(metal::bool_<test>(), + input, nbh, a, lambda, increasing); + } + + // Alegebraic + template <typename I, typename N, typename A> + inline + mln_concrete(I) + algebraic_filter_dispatch(metal::false_, + const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& accu, + const mln_result(A)& lambda, + bool increasing) + { + p_array<mln_psite(I)> s = increasing ? + level::sort_psites_increasing(input) : + level::sort_psites_decreasing(input); + return impl::generic::connected_filter(input, nbh, s, accu, lambda); + } + + template <typename I, typename N, typename A> + inline + mln_concrete(I) + algebraic_filter_dispatch(metal::true_, + const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& accu, + const mln_result(A)& lambda, + bool increasing) + { + util::array<unsigned> s = increasing ? + level::sort_offsets_increasing(input) : + level::sort_offsets_decreasing(input); + return impl::connected_filter_fastest(input, nbh, s, accu, lambda); + } + + template <typename I, typename N, typename A> + inline + mln_concrete(I) + algebraic_filter_dispatch(const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& accu, + const mln_result(A)& lambda, + bool increasing) + { + mlc_or(mlc_equal(mln_trait_accumulator_when_pix(A), + trait::accumulator::when_pix::use_none), + mlc_equal(mln_trait_accumulator_when_pix(A), + trait::accumulator::when_pix::use_p))::check(); + + enum { + test = (mlc_equal(mln_trait_image_speed(I), + trait::image::speed::fastest)::value && + mln_is_simple_neighborhood(N)::value && + mlc_equal(mln_trait_accumulator_when_pix(A), + trait::accumulator::when_pix::use_none)::value) + }; + return algebraic_filter_dispatch(metal::bool_<test>(), input, nbh, + accu, lambda, increasing); + } + + + + //connected + template <typename I, typename N, typename A> + inline + mln_concrete(I) + connected_filter_dispatch(mln::trait::accumulator::when_pix::use_none, + const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& a, + const typename A::result& lambda, + bool increasing) + { + return algebraic_filter_dispatch(input, nbh, a, lambda, increasing); + } + + template <typename I, typename N, typename A> + inline + mln_concrete(I) + connected_filter_dispatch(mln::trait::accumulator::when_pix::use_p, + const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& a, + const typename A::result& lambda, + bool increasing) + { + return algebraic_filter_dispatch(input, nbh, a, lambda, increasing); + } + + template <typename I, typename N, typename A> + inline + mln_concrete(I) + connected_filter_dispatch(mln::trait::accumulator::when_pix::use_v, + const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& a, + const typename A::result& lambda, + bool increasing) + { + return leveling_filter_dispatch(input, nbh, a, lambda, increasing); + } + + template <typename I, typename N, typename A> + inline + mln_concrete(I) + connected_filter_dispatch(mln::trait::accumulator::when_pix::use_pix, + const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& a, + const typename A::result& lambda, + bool increasing) + { + return leveling_filter_dispatch(input, nbh, a, lambda, increasing); + } + } // end of namespace mln::canvas::morpho::internal + + +# endif // ! MLN_INCLUDE_ONLY + + // Facade. + + template <typename I, typename N, typename A> + mln_concrete(I) + connected_filter(const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& a, + const typename A::result& lambda, + bool increasing) + { + return internal::connected_filter_dispatch(mln_trait_accumulator_when_pix(A)(), + input, nbh, a, lambda, increasing); + } + + template <typename I, typename N, typename A> + mln_concrete(I) + algebraic_filter(const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& a, + const typename A::result& lambda, + bool increasing) + { + return internal::algebraic_filter_dispatch(input, nbh, a, lambda, increasing); + } + + template <typename I, typename N, typename A> + mln_concrete(I) + leveling_filter(const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& a, + const typename A::result& lambda, + bool increasing) + { + return internal::leveling_filter_dispatch(input, nbh, a, lambda, increasing); + } + + + + } // end of namespace mln::canvas::morpho + } // end of namespace mln::canvas +} // end of namespace mln + + +#endif // ! MLN_CANVAS_MORPHO_CONNECTED_FILTER_HH Index: trunk/milena/sandbox/edwin/filtres/connectes/connected_filter.hh =================================================================== --- trunk/milena/sandbox/edwin/filtres/connectes/connected_filter.hh (revision 3381) +++ trunk/milena/sandbox/edwin/filtres/connectes/connected_filter.hh (revision 3382) @@ -54,6 +54,18 @@ const Accumulator<A>& a, const typename A::result& lambda, bool increasing); + template <typename I, typename N, typename A> + mln_concrete(I) + leveling_filter(const Image<I>& input, const Neighborhood<N>& nbh, + const Accumulator<A>& a, const typename A::result& lambda, + bool increasing); + + template <typename I, typename N, typename A> + mln_concrete(I) + algebraic_filter(const Image<I>& input, const Neighborhood<N>& nbh, + const Accumulator<A>& a, const typename A::result& lambda, + bool increasing); + # ifndef MLN_INCLUDE_ONLY namespace impl { @@ -409,6 +421,11 @@ const typename A::result& lambda, bool increasing) { + mlc_or(mlc_equal(mln_trait_accumulator_when_pix(A), + trait::accumulator::when_pix::use_pix), + mlc_equal(mln_trait_accumulator_when_pix(A), + trait::accumulator::when_pix::use_v))::check(); + enum { test = mlc_equal(mln_trait_image_speed(I), @@ -463,6 +480,11 @@ const mln_result(A)& lambda, bool increasing) { + mlc_or(mlc_equal(mln_trait_accumulator_when_pix(A), + trait::accumulator::when_pix::use_none), + mlc_equal(mln_trait_accumulator_when_pix(A), + trait::accumulator::when_pix::use_p))::check(); + enum { test = (mlc_equal(mln_trait_image_speed(I), trait::image::speed::fastest)::value && @@ -547,6 +569,29 @@ input, nbh, a, lambda, increasing); } + template <typename I, typename N, typename A> + mln_concrete(I) + algebraic_filter(const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& a, + const typename A::result& lambda, + bool increasing) + { + return internal::algebraic_filter_dispatch(input, nbh, a, lambda, increasing); + } + + template <typename I, typename N, typename A> + mln_concrete(I) + leveling_filter(const Image<I>& input, + const Neighborhood<N>& nbh, + const Accumulator<A>& a, + const typename A::result& lambda, + bool increasing) + { + return internal::leveling_filter_dispatch(input, nbh, a, lambda, increasing); + } + + } // end of namespace mln::canvas::morpho } // end of namespace mln::canvas Index: trunk/milena/sandbox/edwin/filtres/connectes/filter.cc =================================================================== --- trunk/milena/sandbox/edwin/filtres/connectes/filter.cc (revision 3381) +++ trunk/milena/sandbox/edwin/filtres/connectes/filter.cc (revision 3382) @@ -5,6 +5,7 @@ #include <mln/util/timer.hh> #include <mln/core/alias/neighb2d.hh> #include <mln/morpho/attribute/volume.hh> +#include <mln/morpho/attribute/card.hh> #include "connected_filter.hh" int main(int argc, char** argv) @@ -20,28 +21,55 @@ float elapsed; mln::util::timer chrono; mln::morpho::attribute::volume<I> c; + mln::morpho::attribute::card<I> c2; int lambda = atoi(argv[1]); mln::io::pgm::load(lena, "../../../../img/lena.pgm"); I out; + std::cout << "Test algebraic" << std::endl; chrono.start(); - out = mln::canvas::morpho::connected_filter(lena, c4(), c, lambda, true); + out = mln::canvas::morpho::connected_filter(lena, c4(), c2, lambda, true); elapsed = chrono.stop(); std::cout << "(auto) " << elapsed << "s" << std::endl; - mln::io::pgm::save(out, "auto.pgm"); + mln::io::pgm::save(out, "alg_auto.pgm"); chrono.start(); - out = mln::canvas::morpho::internal::leveling_filter_dispatch(mln::metal::true_(), lena, c4(), c, lambda, true); + out = mln::canvas::morpho::algebraic_filter(lena, c4(), c2, lambda, true); elapsed = chrono.stop(); std::cout << "(fast) " << elapsed << "s" << std::endl; + mln::io::pgm::save(out, "alg_fast.pgm"); + + chrono.start(); + out = mln::canvas::morpho::algebraic_filter(lena, c4(), c2, lambda, true); + elapsed = chrono.stop(); + std::cout << "(slow) " << elapsed << "s" << std::endl; + mln::io::pgm::save(out, "alg_slow.pgm"); + +// Try force algebraic dispatch with wrong accu (volume). +// out = mln::canvas::morpho::algebraic_filter(lena, c4(), c, lambda, true); + + std::cout << "Test leveling" << std::endl; + chrono.start(); + out = mln::canvas::morpho::connected_filter(lena, c4(), c, lambda, true); + elapsed = chrono.stop(); + std::cout << "(auto) " << elapsed << "s" << std::endl; + mln::io::pgm::save(out, "lev_auto.pgm"); - mln::io::pgm::save(out, "fast.pgm"); + chrono.start(); + out = mln::canvas::morpho::leveling_filter(lena, c4(), c, lambda, true); + elapsed = chrono.stop(); + std::cout << "(fast) " << elapsed << "s" << std::endl; + mln::io::pgm::save(out, "lev_fast.pgm"); chrono.start(); - out = mln::canvas::morpho::internal::leveling_filter_dispatch(mln::metal::false_(), lena, c4(), c, lambda, true); + out = mln::canvas::morpho::leveling_filter(lena, c4(), c, lambda, true); elapsed = chrono.stop(); std::cout << "(slow) " << elapsed << "s" << std::endl; + mln::io::pgm::save(out, "lev_slow.pgm"); + +// Try force leveling dispatch with wrong accu (card). +// mln::canvas::morpho::leveling_filter(lena, c4(), c2, lambda, true); + - mln::io::pgm::save(out, "slow.pgm"); }