Olena-patches January 2009

olena-patches@lrde.epita.fr

9 participants
152 discussions

3147: Start a code to segment color images.

by Thierry Geraud

https://svn.lrde.epita.fr/svn/oln/trunk/milena/sandbox Index: ChangeLog from Thierry Geraud <thierry.geraud(a)lrde.epita.fr> Start a code to segment color images. * geraud/color: New directory. * geraud/color/segment.cc: New. * geraud/wst_edge.cc: Move... * geraud/laurent/wst_edge.cc: ...here. segment.cc | 254 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 254 insertions(+) Property changes on: geraud/laurent/wst_edge.cc ___________________________________________________________________ Added: svn:mergeinfo Index: geraud/color/segment.cc --- geraud/color/segment.cc (revision 0) +++ geraud/color/segment.cc (revision 0) @@ -0,0 +1,254 @@ +# include <mln/core/var.hh> + +# include <mln/core/image/image2d.hh> +# include <mln/core/alias/neighb2d.hh> + +# include <mln/core/image/image_if.hh> +# include <mln/core/routine/extend.hh> +# include <mln/pw/all.hh> + +# include <mln/io/ppm/load.hh> +# include <mln/io/pgm/save.hh> +# include <mln/io/ppm/save.hh> +# include <mln/math/diff_abs.hh> + +# include <mln/make/double_neighb2d.hh> +# include <mln/data/paste.hh> +# include <mln/morpho/closing_volume.hh> +# include <mln/morpho/meyer_wst.hh> +# include <mln/morpho/dilation.hh> +# include <mln/morpho/erosion.hh> + +# include <mln/debug/println.hh> + + +namespace mln +{ + + // Functions. + + inline + bool is_row_odd(const point2d& p) + { + return p.row() % 2; + } + + inline + bool is_square(const point2d& p) + { + return p.row() % 2 == 0 && p.col() % 2 == 0; + } + + inline + bool is_edge(const point2d& p) + { + return p.row() % 2 + p.col() % 2 == 1; + } + + inline + bool is_point(const point2d& p) + { + return p.row() % 2 && p.col() % 2; + } + + + // Transforms. + + template <typename I> + I display_edge(const I& ima, mln_value(I) bg, unsigned zoom) + { + unsigned nrows = ima.nrows() / 2 + 1; + unsigned ncols = ima.ncols() / 2 + 1; + I output(nrows * (zoom + 1) - 1, + ncols * (zoom + 1) - 1); + data::fill(output, bg); + mln_VAR( edge, ima | is_edge ); + mln_piter(edge_t) p(edge.domain()); + for_all(p) + if (p.row() % 2) // horizontal edge + { + unsigned row = (p.row() / 2 + 1) * (zoom + 1) - 1; + unsigned col = (p.col() / 2) * (zoom + 1); + for (unsigned i = 0; i < zoom; ++i) + opt::at(output, row, col + i) = ima(p); + } + else // vertical edge + { + unsigned row = (p.row() / 2) * (zoom + 1); + unsigned col = (p.col() / 2 + 1) * (zoom + 1) - 1; + for (unsigned i = 0; i < zoom; ++i) + opt::at(output, row + i, col) = ima(p); + } + return output; + } + + template <typename T> + image2d<T> + image2squares(const image2d<T>& input) + { + image2d<T> output(2 * input.nrows() - 1, + 2 * input.ncols() - 1); + for (int row = 0; row < input.nrows(); ++row) + for (int col = 0; col < input.ncols(); ++col) + opt::at(output, 2 * row, 2 * col) = opt::at(input, row, col); + return output; + } + + template <typename T> + image2d<T> + squares2image(const image2d<T>& input) + { + image2d<T> output((input.nrows() + 1) / 2, + (input.ncols() + 1) / 2); + for (int row = 0; row < input.nrows(); row += 2) + for (int col = 0; col < input.ncols(); col += 2) + opt::at(output, row / 2, col / 2) = + opt::at(input, row, col); + return output; + } + + + + // Distance. + + value::int_u8 dist(const value::rgb8& c1, const value::rgb8& c2) + { + unsigned d = 0; + d += (math::diff_abs(c1.red(), c2.red()) + 2) / 3; + d += (math::diff_abs(c1.green(), c2.green()) + 2) / 3; + d += (math::diff_abs(c1.blue(), c2.blue()) + 2) / 3; + if (d > 255) + d = 255; + return d; + } + + template <typename I, typename N> + image2d<value::int_u8> + dist(const I& input, const N& nbh) + { + image2d<value::int_u8> output; + initialize(output, input); + data::fill(output, 0); + + mln_piter(I) p(input.domain()); + mln_niter(N) n(nbh, p); + for_all(p) + { + n.start(); + value::rgb8 c1 = input(n); + n.next(); + value::rgb8 c2 = input(n); + output(p) = dist(c1, c2); + } + + return output; + } + + +} // mln + + + +void usage(char* argv[]) +{ + std::cerr << "usage: " << argv[0] << " input.ppm n output.ppm" << std::endl; + std::cerr << " n >= 2" << std::endl; + abort(); +} + + + +int main(int argc, char* argv[]) +{ + using namespace mln; + using value::int_u8; + using value::rgb8; + + if (argc != 4) + usage(argv); + + image2d<rgb8> raw_input, input; + + io::ppm::load(raw_input, argv[1]); + input = image2squares(raw_input); + + // e2c + + bool e2c_h[] = { 0, 1, 0, + 0, 0, 0, + 0, 1, 0 }; + + bool e2c_v[] = { 0, 0, 0, + 1, 0, 1, + 0, 0, 0 }; + + mln_VAR( e2c, make::double_neighb2d(is_row_odd, e2c_h, e2c_v) ); + + + + image2d<int_u8> G = dist(extend(input | is_edge, pw::value(input)), + e2c); + + mln_VAR(G_edges, G | is_edge); + + /* + { + io::pgm::save(display_edge(G, 0, 3), + "temp_G.pgm"); + } + */ + + // e2e + + bool e2e_h[] = { 0, 0, 1, 0, 0, + 0, 1, 0, 1, 0, + 0, 0, 0, 0, 0, + 0, 1, 0, 1, 0, + 0, 0, 1, 0, 0 }; + + bool e2e_v[] = { 0, 0, 0, 0, 0, + 0, 1, 0, 1, 0, + 1, 0, 0, 0, 1, + 0, 1, 0, 1, 0, + 0, 0, 0, 0, 0 }; + + mln_VAR( e2e, make::double_neighb2d(is_row_odd, e2e_h, e2e_v) ); + + data::paste( morpho::closing_volume(G_edges, e2e, 50), G_edges ); + + /* + { + io::pgm::save(display_edge(G_edges.unmorph_(), 0, 3), + "temp_G_closed.pgm"); + } + */ + + int_u8 nbasins; + mln_VAR(W_edges, morpho::meyer_wst(G_edges, e2e, nbasins)); + + /* + { + io::pgm::save(display_edge(W_edges.unmorph_(), 0, 3), + "temp_W_edges.pgm"); + } + */ + + mln_VAR(W_all, W_edges.unmorph_()); + + + mln_VAR(W_squares, W_all | is_square); + data::paste(morpho::dilation(extend(W_squares, pw::value(W_all)), + c4().win()), + W_all); + + mln_VAR(W_points, W_all | is_point); + data::paste(morpho::erosion(extend(W_points, pw::value(W_all)), + c4().win()), + W_all); + + + { + io::pgm::save(W_all, "temp_W_all.pgm"); + } + +}

15 years, 11 months

3146: Fix fun::x2x::rotation test.

by Guillaume Lazzara

* tests/fun/x2x/rotation.cc: Check if the sites which are part of the rotated image are part of the original image _domain_. Call domain().has() instead of has(). Interpolated sites which were part of the domain needed a larger extension in order to be computed correctly. --- milena/ChangeLog | 10 ++++++++++ milena/tests/fun/x2x/rotation.cc | 19 +++++++++++-------- 2 files changed, 21 insertions(+), 8 deletions(-) diff --git a/milena/ChangeLog b/milena/ChangeLog index d08a017..74d2d1f 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,5 +1,15 @@ 2009-01-09 Guillaume Lazzara <z(a)lrde.epita.fr> + Fix fun::x2x::rotation test. + + * tests/fun/x2x/rotation.cc: Check if the sites which are part of the + rotated image are part of the original image _domain_. Call + domain().has() instead of has(). + Interpolated sites which were part of the domain needed a larger + extension in order to be computed correctly. + +2009-01-09 Guillaume Lazzara <z(a)lrde.epita.fr> + Fix level::stretch. * mln/level/stretch.hh: Use double variables instead of float because diff --git a/milena/tests/fun/x2x/rotation.cc b/milena/tests/fun/x2x/rotation.cc index 7835ac9..b96c551 100644 --- a/milena/tests/fun/x2x/rotation.cc +++ b/milena/tests/fun/x2x/rotation.cc @@ -1,4 +1,5 @@ -// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory (LRDE) +// 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 @@ -39,6 +40,7 @@ #include <mln/core/image/interpolated.hh> #include <mln/make/vec.hh> #include <mln/fun/x2v/bilinear.hh> +#include <mln/extension/adjust.hh> #include "tests/data.hh" @@ -51,21 +53,22 @@ int main() algebra::vec<2,float> axis; axis[0] = 0; axis[1] = 1; - - image2d<int_u8> lena; + typedef image2d<int_u8> ima_t; + ima_t lena; io::pgm::load(lena, MLN_IMG_DIR "/lena.pgm"); - image2d<int_u8> out(lena.domain()); - interpolated<image2d<int_u8>, fun::x2v::bilinear> inter(lena); + ima_t out; + initialize(out, lena); - fun::x2x::rotation<2,float> rot1(0.1, axis); + interpolated<ima_t, fun::x2v::bilinear> inter(lena); - mln_piter_(image2d<int_u8>) p(out.domain()); + fun::x2x::rotation<2,float> rot1(0.1, axis); + mln_piter_(ima_t) p(out.domain()); for_all(p) { algebra::vec<2,float> v = rot1.inv()(p.to_site().to_vec()); - if (inter.has(v)) + if (inter.domain().has(v)) out(p) = inter(v); else out(p) = 255; -- 1.5.6.5

15 years, 11 months

3145: Fix level::stretch.

by Guillaume Lazzara

* mln/level/stretch.hh: Use double variables instead of float because of precision issues. See ticket #179. --- milena/ChangeLog | 7 +++++++ milena/mln/level/stretch.hh | 16 ++++++++++------ 2 files changed, 17 insertions(+), 6 deletions(-) diff --git a/milena/ChangeLog b/milena/ChangeLog index 6364251..d08a017 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,5 +1,12 @@ 2009-01-09 Guillaume Lazzara <z(a)lrde.epita.fr> + Fix level::stretch. + + * mln/level/stretch.hh: Use double variables instead of float because + of precision issues. See ticket #179. + +2009-01-09 Guillaume Lazzara <z(a)lrde.epita.fr> + Add from_double_to_value dispatch in from_to. * mln/convert/from_to.hxx: add more forward declarations. diff --git a/milena/mln/level/stretch.hh b/milena/mln/level/stretch.hh index e91dbe7..80190b4 100644 --- a/milena/mln/level/stretch.hh +++ b/milena/mln/level/stretch.hh @@ -1,5 +1,5 @@ -// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory -// (LRDE) +// 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 @@ -44,6 +44,8 @@ # include <mln/level/transform.hh> +# include <mln/value/internal/encoding.hh> +# include <iomanip> namespace mln { @@ -84,21 +86,23 @@ namespace mln estim::min_max(input, min_, max_); if (max_ != min_) { - float + //FIXME: we would like to use float instead of double but we + //can't for precision reasons. See ticket #179. + double min = float(min_), max = float(max_), epsilon = mln_epsilon(float), - m = 0.0f - 0.5f + epsilon, M = mln_max(V) + 0.5f - epsilon, + m = 0.0f - 0.5f + epsilon, a = (M - m) / (max - min), b = (m * max - M * min) / (max - min); - fun::v2v::linear<float, float, V> f(a, b); + fun::v2v::linear<double, double, V> f(a, b); output = level::transform(input, f); } else { initialize(output, input); - // trace::warning("output has no significative data!"); + trace::warning("output has no significative data!"); } trace::exiting("level::impl::stretch"); -- 1.5.6.5

15 years, 11 months

3144: Add from_double_to_value dispatch in from_to.

by Guillaume Lazzara

* mln/convert/from_to.hxx: add more forward declarations. * mln/convert/impl/all.hh: include from_double_to_value.hh. * mln/convert/impl/from_double_to_value.hh: new file. Add a new dispatch for double conversion. --- milena/ChangeLog | 11 ++ milena/mln/convert/from_to.hxx | 13 ++ milena/mln/convert/impl/all.hh | 1 + milena/mln/convert/impl/from_double_to_value.hh | 157 +++++++++++++++++++++++ 4 files changed, 182 insertions(+), 0 deletions(-) create mode 100644 milena/mln/convert/impl/from_double_to_value.hh diff --git a/milena/ChangeLog b/milena/ChangeLog index 2a5fb87..6364251 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,5 +1,16 @@ 2009-01-09 Guillaume Lazzara <z(a)lrde.epita.fr> + Add from_double_to_value dispatch in from_to. + + * mln/convert/from_to.hxx: add more forward declarations. + + * mln/convert/impl/all.hh: include from_double_to_value.hh. + + * mln/convert/impl/from_double_to_value.hh: new file. Add a new + dispatch for double conversion. + +2009-01-09 Guillaume Lazzara <z(a)lrde.epita.fr> + Remove a useless test in level/median. * tests/level/Makefile.am, diff --git a/milena/mln/convert/from_to.hxx b/milena/mln/convert/from_to.hxx index 793da8b..e2cbe3d 100644 --- a/milena/mln/convert/from_to.hxx +++ b/milena/mln/convert/from_to.hxx @@ -194,6 +194,19 @@ namespace mln void from_to_(const Value<F>& from, Value<T>& to); + // double-> Value + template <typename V> + void + from_to_(const double& from, Value<V>& to); + + // double-> unsigned + void + from_to_(const double& from, unsigned& to); + + // double-> int + void + from_to_(const double& from, int& to); + // float -> Value template <typename V> void diff --git a/milena/mln/convert/impl/all.hh b/milena/mln/convert/impl/all.hh index a7ef79b..1a33732 100644 --- a/milena/mln/convert/impl/all.hh +++ b/milena/mln/convert/impl/all.hh @@ -33,6 +33,7 @@ /// File that includes all from-to conversion routines. +# include <mln/convert/impl/from_double_to_value.hh> # include <mln/convert/impl/from_float_to_value.hh> # include <mln/convert/impl/from_image_to_site_set.hh> # include <mln/convert/impl/from_int_to_value.hh> diff --git a/milena/mln/convert/impl/from_double_to_value.hh b/milena/mln/convert/impl/from_double_to_value.hh new file mode 100644 index 0000000..fc1d23e --- /dev/null +++ b/milena/mln/convert/impl/from_double_to_value.hh @@ -0,0 +1,157 @@ +// Copyright (C) 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_CONVERT_IMPL_FROM_DOUBLE_TO_VALUE_HH +# define MLN_CONVERT_IMPL_FROM_DOUBLE_TO_VALUE_HH + +/// \file mln/convert/impl/from_double_to_value.hh +/// +/// General conversion procedure from a double to a value. +/// +/// \todo Augment code + add checks. + +# include <utility> +# include <mln/value/concept/integer.hh> +# include <mln/value/concept/floating.hh> +# include <mln/core/concept/value.hh> +# include <mln/math/round.hh> + + + + +namespace mln +{ + + namespace convert + { + + /// Conversion of a double \p from towards a value \p to. + template <typename V> + void + from_to(const double& from, Value<V>& to); + + +# ifndef MLN_INCLUDE_ONLY + + namespace impl + { + + // Case 1: + + template <typename V> + inline + void + from_double_to_value(const double& from, + mln::value::Integer<V>& to) + { + exact(to) = math::round<V>()(from); + } + + // Case 2: + + template <typename V> + inline + void + from_double_to_value(const double& from, + mln::value::Floating<V>& to) + { + exact(to) = from; + } + + + // Default: no conversion defined. + + template <typename V> + inline + void + from_double_to_value(const double& from, + Value<V>& to) + { + mlc_abort(V)::check(); + } + + } // end of namespace mln::convert::impl + + + namespace internal + { + + template <typename V> + inline + void + from_double_to_value_dispatch(const double& from, Value<V>& to) + { + impl::from_double_to_value(from, exact(to)); + } + + } // end of namespace mln::convert::internal + + + namespace over_load + { + + // Facades. + + + // double-> Value + template <typename V> + inline + void + from_to_(const double& from, Value<V>& to) + { + internal::from_double_to_value_dispatch(from, to); + } + + // double-> unsigned + inline + void + from_to_(const double& from, + unsigned& to) + { + mln_precondition(from >= 0); + to = math::round<unsigned>()(from); + } + + // double-> int + inline + void + from_to_(const double& from, + int& to) + { + to = math::round<int>()(from); + } + + } // end of namespace mln::convert::over_load + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace mln::convert + +} // end of namespace mln + + +#endif // ! MLN_CONVERT_IMPL_FROM_DOUBLE_TO_VALUE_HH -- 1.5.6.5

15 years, 11 months

3143: Remove a useless test in level/median.

by Guillaume Lazzara

* tests/level/Makefile.am, * tests/level/median_.cc: remove this test. It is already tested by level/median/approx/median.cc. * mln/level/approx/median.hh, * tests/level/approx/median.cc, * tests/level/median.cc: fix copyright. --- milena/ChangeLog | 12 ++++++++ milena/mln/level/approx/median.hh | 2 +- milena/tests/level/Makefile.am | 2 - milena/tests/level/approx/median.cc | 4 +- milena/tests/level/median.cc | 4 +- milena/tests/level/median_.cc | 48 ----------------------------------- 6 files changed, 17 insertions(+), 55 deletions(-) delete mode 100644 milena/tests/level/median_.cc diff --git a/milena/ChangeLog b/milena/ChangeLog index 61a8e60..2a5fb87 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,5 +1,17 @@ 2009-01-09 Guillaume Lazzara <z(a)lrde.epita.fr> + Remove a useless test in level/median. + + * tests/level/Makefile.am, + * tests/level/median_.cc: remove this test. It is already tested by + level/median/approx/median.cc. + + * mln/level/approx/median.hh, + * tests/level/approx/median.cc, + * tests/level/median.cc: fix copyright. + +2009-01-09 Guillaume Lazzara <z(a)lrde.epita.fr> + Provide a default implementation of center_at_() in site_relative_iterator_base. diff --git a/milena/mln/level/approx/median.hh b/milena/mln/level/approx/median.hh index 8156b1c..5bf1a9e 100644 --- a/milena/mln/level/approx/median.hh +++ b/milena/mln/level/approx/median.hh @@ -1,4 +1,4 @@ -// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory +// Copyright (C) 2007, 2009 EPITA Research and Development Laboratory // (LRDE) // // This file is part of the Olena Library. This library is free diff --git a/milena/tests/level/Makefile.am b/milena/tests/level/Makefile.am index 0d34bc3..39f3a63 100644 --- a/milena/tests/level/Makefile.am +++ b/milena/tests/level/Makefile.am @@ -12,7 +12,6 @@ check_PROGRAMS = \ compute \ convert \ median \ - median_ \ median_fast \ saturate \ sort_psites \ @@ -28,7 +27,6 @@ compare_SOURCES = compare.cc compute_SOURCES = compute.cc convert_SOURCES = convert.cc median_SOURCES = median.cc -median__SOURCES = median_.cc median_fast_SOURCES = median_fast.cc saturate_SOURCES = saturate.cc sort_psites_SOURCES = sort_psites.cc diff --git a/milena/tests/level/approx/median.cc b/milena/tests/level/approx/median.cc index d9e39c4..7dd3f12 100644 --- a/milena/tests/level/approx/median.cc +++ b/milena/tests/level/approx/median.cc @@ -1,5 +1,5 @@ -// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory -// (LRDE) +// 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 diff --git a/milena/tests/level/median.cc b/milena/tests/level/median.cc index 48f6adb..0d749e2 100644 --- a/milena/tests/level/median.cc +++ b/milena/tests/level/median.cc @@ -1,5 +1,5 @@ -// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory -// (LRDE) +// 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 diff --git a/milena/tests/level/median_.cc b/milena/tests/level/median_.cc deleted file mode 100644 index 3d97c7c..0000000 --- a/milena/tests/level/median_.cc +++ /dev/null @@ -1,48 +0,0 @@ -#include <mln/core/image/image2d.hh> -#include <mln/win/rectangle2d.hh> -#include <mln/make/box2d.hh> - -#include <mln/io/pgm/load.hh> -#include <mln/io/pgm/save.hh> - -#include <mln/value/int_u8.hh> -#include <mln/level/median.hh> - -#include "tests/data.hh" - -#include <mln/debug/iota.hh> -#include <mln/debug/println.hh> - - -int main() -{ - using namespace mln; - using value::int_u8; - - { - border::thickness = 5; - box2d bb = make::box2d(0, 0, 3, 3); - image2d<int_u8> ima(bb); - debug::iota(ima); - debug::println(ima); - - win::rectangle2d rect(3, 3); - image2d<int_u8> out(ima.domain()); - - level::impl::median_(ima, rect, out); - } - - - { - win::rectangle2d rect(21, 21); - border::thickness = 6; - - image2d<int_u8> lena; - io::pgm::load(lena, MLN_IMG_DIR "/lena.pgm"); - image2d<int_u8> out(lena.domain()); - - level::impl::median_(lena, rect, out); - io::pgm::save(out, "out.pgm"); - } - -} -- 1.5.6.5

15 years, 11 months

[Olena] #176: Fix override of center_at() in graph and complex iterators

by Olena

#176: Fix override of center_at() in graph and complex iterators ---------------------+------------------------------------------------------ Reporter: lazzara | Owner: Olena Team Type: defect | Status: new Priority: major | Milestone: Component: Milena | Version: 1.0 Keywords: | ---------------------+------------------------------------------------------ Graph and complex iterators inherit from site_relative_iterator_base. site_relative_iterator_base provides center_at() but do not allow derived classes to implement their own. Graph and complex iterators need to update an underlying iterator while calling center_at() which is not possible currently, except by overriding center_at(). We may add the following call in site_relative_iterator_base::center_at(): exact(this)->center_at_(); And rename center_at() to center_at_() in the following files: - mln/core/image/graph_window_piter.hh - mln/core/image/complex_neighborhood_piter.hh -- Ticket URL: <https://trac.lrde.org/olena/ticket/176> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image processing library.

15 years, 11 months

3142: Provide a default implementation of center_at_() in site_relative_iterator_base.

by Guillaume Lazzara

* mln/core/dpsites_piter.hh, * mln/core/neighb.hh, * mln/win/multiple_size.hh: remove empty implementation of center_at_(). * mln/core/image/complex_neighborhood_piter.hh: add a new line. * mln/core/internal/site_relative_iterator_base.hh: add default implementation of center_at_(). --- milena/ChangeLog | 14 ++++++++++ milena/mln/core/dpsites_piter.hh | 28 +------------------ .../mln/core/image/complex_neighborhood_piter.hh | 4 ++- .../core/internal/site_relative_iterator_base.hh | 16 ++++++++++- milena/mln/core/neighb.hh | 28 +------------------ milena/mln/win/multiple_size.hh | 15 +--------- 6 files changed, 38 insertions(+), 67 deletions(-) diff --git a/milena/ChangeLog b/milena/ChangeLog index 4696e60..61a8e60 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,3 +1,17 @@ +2009-01-09 Guillaume Lazzara <z(a)lrde.epita.fr> + + Provide a default implementation of center_at_() in + site_relative_iterator_base. + + * mln/core/dpsites_piter.hh, + * mln/core/neighb.hh, + * mln/win/multiple_size.hh: remove empty implementation of center_at_(). + + * mln/core/image/complex_neighborhood_piter.hh: add a new line. + + * mln/core/internal/site_relative_iterator_base.hh: add default + implementation of center_at_(). + 2009-01-08 Thierry Geraud <thierry.geraud(a)lrde.epita.fr> Cleanup level approx median. diff --git a/milena/mln/core/dpsites_piter.hh b/milena/mln/core/dpsites_piter.hh index 91709d7..b2cd978 100644 --- a/milena/mln/core/dpsites_piter.hh +++ b/milena/mln/core/dpsites_piter.hh @@ -1,5 +1,5 @@ -// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory -// (LRDE) +// 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 @@ -74,10 +74,6 @@ namespace mln /// Go to the next point. void do_next_(); - /// Set the reference psite. - template <typename Pref> - void center_at_(const Pref&); - /// Compute the current psite. mln_psite(V) compute_p_() const; @@ -120,10 +116,6 @@ namespace mln /// Go to the next point. void do_next_(); - /// Do some work while setting the reference site. - template <typename Pref> - void center_at_(const Pref&); - /// Compute the current psite. mln_psite(V) compute_p_() const; @@ -187,14 +179,6 @@ namespace mln } template <typename V> - template <typename Pref> - inline - void - dpsites_fwd_piter<V>::center_at_(const Pref&) - { - } - - template <typename V> inline mln_psite(V) dpsites_fwd_piter<V>::compute_p_() const @@ -253,14 +237,6 @@ namespace mln } template <typename V> - template <typename Pref> - inline - void - dpsites_bkd_piter<V>::center_at_(const Pref&) - { - } - - template <typename V> inline mln_psite(V) dpsites_bkd_piter<V>::compute_p_() const diff --git a/milena/mln/core/image/complex_neighborhood_piter.hh b/milena/mln/core/image/complex_neighborhood_piter.hh index 0a91f30..32beda6 100644 --- a/milena/mln/core/image/complex_neighborhood_piter.hh +++ b/milena/mln/core/image/complex_neighborhood_piter.hh @@ -1,4 +1,5 @@ -// Copyright (C) 2008 EPITA Research and Development Laboratory (LRDE) +// Copyright (C) 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 @@ -90,6 +91,7 @@ namespace mln /// Set the reference psite. template <typename Pref> void center_at_(const Pref& c); + /// Compute the current psite. psite compute_p_() const; /// \} diff --git a/milena/mln/core/internal/site_relative_iterator_base.hh b/milena/mln/core/internal/site_relative_iterator_base.hh index 7a662b6..ffa5c33 100644 --- a/milena/mln/core/internal/site_relative_iterator_base.hh +++ b/milena/mln/core/internal/site_relative_iterator_base.hh @@ -1,4 +1,5 @@ -// Copyright (C) 2008 EPITA Research and Development Laboratory (LRDE) +// Copyright (C) 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 @@ -112,6 +113,11 @@ namespace mln private: + // Allows inherited classes to do extra work while centering. + // Default implementation. + template <typename P> + void center_at_(const P& c); + /// The psite designated by this iterator. mln_psite(S) p_; }; @@ -228,6 +234,14 @@ namespace mln return exact(*this); } + template <typename S, typename E> + template <typename P> + inline + void + site_relative_iterator_base<S,E>::center_at_(const P& c) + { + } + # endif // ! MLN_INCLUDE_ONLY } // end of namespace mln::internal diff --git a/milena/mln/core/neighb.hh b/milena/mln/core/neighb.hh index d509af0..d5f0e83 100644 --- a/milena/mln/core/neighb.hh +++ b/milena/mln/core/neighb.hh @@ -1,5 +1,5 @@ -// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory -// (LRDE) +// 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 @@ -140,10 +140,6 @@ namespace mln /// Go to the next point. void do_next_(); - /// Do some work while centering the iterator. - template <typename Pref> - void center_at_(const Pref&); - /// Compute the current psite. mln_psite(W) compute_p_() const; @@ -182,10 +178,6 @@ public: /// Go to the next point. void do_next_(); - /// Do some work while centering the iterator. - template <typename Pref> - void center_at_(const Pref&); - /// Compute the current psite. mln_psite(W) compute_p_() const; @@ -318,14 +310,6 @@ protected: } template <typename W> - template <typename Pref> - inline - void - neighb_fwd_niter<W>::center_at_(const Pref&) - { - } - - template <typename W> inline mln_psite(W) neighb_fwd_niter<W>::compute_p_() const @@ -386,14 +370,6 @@ protected: } template <typename W> - template <typename Pref> - inline - void - neighb_bkd_niter<W>::center_at_(const Pref&) - { - } - - template <typename W> inline mln_psite(W) neighb_bkd_niter<W>::compute_p_() const diff --git a/milena/mln/win/multiple_size.hh b/milena/mln/win/multiple_size.hh index 86ccaed..8760b9c 100644 --- a/milena/mln/win/multiple_size.hh +++ b/milena/mln/win/multiple_size.hh @@ -1,4 +1,5 @@ -// Copyright (C) 2008 EPITA Research and Development Laboratory (LRDE) +// Copyright (C) 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 @@ -155,10 +156,6 @@ namespace mln /// Go to the next point. void do_next_(); - /// Do some work while setting the reference site. - template <typename Pref> - void center_at_(const Pref&); - /// Compute the current psite. mln_psite(W) compute_p_() const; @@ -353,14 +350,6 @@ namespace mln } template <unsigned n, typename W, typename F> - template <typename Pref> - inline - void - multiple_size_qiter<n,W,F>::center_at_(const Pref&) - { - } - - template <unsigned n, typename W, typename F> inline mln_psite(W) multiple_size_qiter<n,W,F>::compute_p_() const -- 1.5.6.5

15 years, 11 months

3141: Cleanup level approx median.

by Thierry Geraud

https://svn.lrde.epita.fr/svn/oln/trunk/milena Index: ChangeLog from Thierry Geraud <thierry.geraud(a)lrde.epita.fr> Cleanup level approx median. * mln/level/approx/median.hh: Upgrade file doc style. (median): Return output. Revamp. (median_): Remove; awkward. * mln/accu/transform_line.hh (comment): Fix. We deal with lines not runs. (transform_line): Fix extension adjust. * mln/morpho/general.spe.hh (general_line): New impl. (general_dispatch_line): Use it. * tests/level/approx/median.cc: Upgrade file doc style. Augment tests. * tests/morpho/general.cc: Augment tests with hline and vline. mln/accu/transform_line.hh | 14 ++-- mln/level/approx/median.hh | 131 +++++++++++++++++++------------------------ mln/morpho/general.spe.hh | 24 +++++++ tests/level/approx/median.cc | 31 ++++------ tests/morpho/general.cc | 16 ++++- 5 files changed, 117 insertions(+), 99 deletions(-) Index: mln/level/approx/median.hh --- mln/level/approx/median.hh (revision 3140) +++ mln/level/approx/median.hh (working copy) @@ -1,4 +1,5 @@ -// Copyright (C) 2007 EPITA Research and Development Laboratory +// Copyright (C) 2007, 2008 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 @@ -28,10 +29,9 @@ #ifndef MLN_LEVEL_APPROX_MEDIAN_HH # define MLN_LEVEL_APPROX_MEDIAN_HH -/*! \file mln/level/approx/median.hh - * - * \brief Approximates of some median filters of an image. - */ +/// \file mln/level/approx/median.hh +/// +/// Approximates of some median filters of an image. # include <mln/level/median.hh> # include <mln/win/rectangle2d.hh> @@ -44,6 +44,7 @@ #include <time.h> + namespace mln { @@ -58,125 +59,109 @@ * * \param[in] input The image to be filtered. * \param[in] win The rectangle. - * \param[in,out] output The output image. * * The approximation is based on a vertical median ran after * an horizontal median. * * \pre \p input and \p output have to be initialized. */ - template <typename I, typename O> - void median(const Image& input, const win::rectangle2d& win, - Image<O>& output); + template <typename I> + mln_concrete(I) + median(const Image& input, const win::rectangle2d& win); + /*! Compute in \p output an approximate of the median filter of * image \p input by the 2D disk \p win. * * \param[in] input The image to be filtered. * \param[in] win The disk. - * \param[in,out] output The output image. * * The approximation is based on a vertical median and * an horizontal median an two diagonal median. * * \pre \p input and \p output have to be initialized. */ - template <typename I, typename O> - void median(const Image& input, const win::disk2d& win, - Image<O>& output); + template <typename I> + mln_concrete(I) + median(const Image& input, const win::disk2d& win); + /*! Compute in \p output an approximate of the median filter of * image \p input by the 2D octagon \p win. * * \param[in] input The image to be filtered. * \param[in] win The octagon. - * \param[in,out] output The output image. * * The approximation is based on a vertical median and * an horizontal median an two diagonal median. * * \pre \p input and \p output have to be initialized. */ - template <typename I, typename O> - void median(const Image& input, const win::octagon2d& win, - Image<O>& output); + template <typename I> + mln_concrete(I) + median(const Image& input, const win::octagon2d& win); + # ifndef MLN_INCLUDE_ONLY - namespace impl - { - template <typename I, typename O> + // Facades. + + + template <typename I> inline - void median_(const I& input, const unsigned length, - O& output) + mln_concrete(I) + median(const Image& input, const win::rectangle2d& win) { - const unsigned len = length / 3 + 1; + trace::entering("level::approx::median"); - O - tmp1(output.domain()), - tmp2(output.domain()); - { - clock_t c = clock(); - level::median(input, win::diag2d(len), tmp1); - std::cout << "diag " << float(clock() - c) / CLOCKS_PER_SEC << std::endl; - } - { - clock_t c = clock(); - level::median(tmp1, win::backdiag2d(len), tmp2); - std::cout << "back " << float(clock() - c) / CLOCKS_PER_SEC << std::endl; - } - { - clock_t c = clock(); - level::median(tmp2, win::hline2d(len), tmp1); - std::cout << "hlin " << float(clock() - c) / CLOCKS_PER_SEC << std::endl; - } - { - clock_t c = clock(); - level::median(tmp1, win::vline2d(len), output); - std::cout << "vlin " << float(clock() - c) / CLOCKS_PER_SEC << std::endl; - } + mln_concrete(I) output; - } + win::hline2d win1(win.width()); + output = level::median(input, win1); - } // end of namespace mln::level::approx::impl + win::vline2d win2(win.height()); + output = level::median(output, win2); + trace::exiting("level::approx::median"); + return output; + } - // Facades. - template <typename I, typename O> + template <typename I> inline - void median(const Image& input_, const win::rectangle2d& win, - Image<O>& output_) + mln_concrete(I) + median(const Image& input, const win::disk2d& win) { - const I& input = exact(input_); - O& output = exact(output_); - mln_assertion(output.domain() == input.domain()); - - O tmp(output.domain()); - level::median(input, win::hline2d(win.width()), tmp); - level::median(tmp, win::vline2d(win.height()), output); - } + trace::entering("level::approx::median"); - template <typename I, typename O> - inline - void median(const Image& input, const win::disk2d& win, - Image<O>& output) - { - mln_assertion(exact(output).domain() == exact(input).domain()); + const unsigned len = win.length() / 3 + 1; + mln_concrete(I) output; + + win::diag2d win1(len); + output = level::median(input, win1); + + win::backdiag2d win2(len); + output = level::median(output, win2); + + win::hline2d win3(len); + output = level::median(input, win3); - impl::median_(exact(input), win.length(), exact(output)); + win::vline2d win4(len); + output = level::median(output, win4); + + trace::exiting("level::approx::median"); + return output; } - template <typename I, typename O> + + template <typename I> inline - void median(const Image& input, const win::octagon2d& win, - Image<O>& output) + mln_concrete(I) + median(const Image& input, const win::octagon2d& win) { - mln_assertion(exact(output).domain() == exact(input).domain()); - - impl::median_(exact(input), win.length(), exact(output)); + return median(input, win::disk2d(win.length())); } # endif // ! MLN_INCLUDE_ONLY Index: mln/accu/transform_line.hh --- mln/accu/transform_line.hh (revision 3140) +++ mln/accu/transform_line.hh (working copy) @@ -129,7 +129,7 @@ do { - // Start the run. + // Start the line. // --------------- qt = p; @@ -146,8 +146,8 @@ if (input.has(p)) output(p) = a.to_result(); - // Browse the run. - // --------------- + // Browse the line. + // ---------------- while (p_dir < pmax_dir) { @@ -165,8 +165,8 @@ p_dir = pmin_dir; - // Go to the next run. - // ------------------- + // Go to the next line. + // -------------------- for (int c = P::dim - 1; c >= 0; --c) { @@ -203,7 +203,7 @@ internal::transform_line_tests(a, input); - extension::adjust(input, length); + extension::adjust(input, length / 2); mln_ch_value(I, mln_result(A)) output; output = impl::generic::transform_line(a, input, length, dir); @@ -226,7 +226,7 @@ internal::transform_line_tests(a_, input); - extension::adjust(input, length); + extension::adjust(input, length / 2); mln_ch_value(I, mln_result(A_)) output; output = impl::generic::transform_line(a_, input, length, dir); Index: mln/morpho/general.spe.hh --- mln/morpho/general.spe.hh (revision 3140) +++ mln/morpho/general.spe.hh (working copy) @@ -40,6 +40,7 @@ # include <mln/win/rectangle2d.hh> # include <mln/accu/transform_directional.hh> +# include <mln/accu/transform_line.hh> # include <mln/accu/transform_snake.hh> # include <mln/accu/transform_stop.hh> # include <mln/accu/transform_diagonal.hh> @@ -238,7 +239,7 @@ extension::adjust_fill(input, geom::delta(win) + 1, op.neutral(input)); mln_concrete(I) output; - output = accu::transform_directional(op.accu_incr(input), input, win, dir); + output = accu::transform_directional(op.accu_incr(input), input, win, dir); // FIXME: Use _line. trace::exiting("morpho::impl:general_directional"); return output; @@ -248,6 +249,25 @@ template <typename Op, typename I, typename W> inline mln_concrete(I) + general_line(const Op& op, const Image& input, const Window<W>& win_) + { + trace::entering("morpho::impl:general_line"); + + const W& win = exact(win_); + + extension::adjust_fill(input, geom::delta(win), op.neutral(input)); + mln_concrete(I) output; + output = accu::transform_line(op.accu_incr(input), input, + win.length(), win.dir); + + trace::exiting("morpho::impl:general_line"); + return output; + } + + + template <typename Op, typename I, typename W> + inline + mln_concrete(I) general_diagonal_2d(const Op& op, const Image& input, const Window<W>& win) { trace::entering("morpho::impl:general_diagonal_2d"); @@ -398,7 +418,7 @@ general_dispatch_line(metal::true_, const Op& op, const I& input, const W& win) { - return impl::general_directional(op, input, win, W::dir); + return impl::general_line(op, input, win); } template <typename Op, typename I, typename W> Index: tests/level/approx/median.cc --- tests/level/approx/median.cc (revision 3140) +++ tests/level/approx/median.cc (working copy) @@ -1,4 +1,5 @@ -// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory (LRDE) +// Copyright (C) 2007, 2008 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 @@ -25,14 +26,11 @@ // reasons why the executable file might be covered by the GNU General // Public License. -/*! \file tests/level/approx/median.cc - * - * \brief Test on mln::level::approx::median. - */ +/// \file tests/level/approx/median.cc +/// +/// Test on mln::level::approx::median. #include <mln/core/image/image2d.hh> -#include <mln/win/rectangle2d.hh> -#include <mln/win/octagon2d.hh> #include <mln/io/pgm/load.hh> #include <mln/io/pgm/save.hh> @@ -48,16 +46,17 @@ using namespace mln; using value::int_u8; - win::rectangle2d rect(51, 51); - win::octagon2d oct(13); - border::thickness = 52; - image2d<int_u8> lena; io::pgm::load(lena, MLN_IMG_DIR "/lena.pgm"); - image2d<int_u8> out(lena.domain()); - // FIXME: Dead code? -// level::approx::median(lena, rect, out); - level::approx::median(lena, oct, out); - io::pgm::save(out, "out.pgm"); + { + win::octagon2d oct(51); + image2d<int_u8> out = level::approx::median(lena, oct); + io::pgm::save(out, "out_oct.pgm"); + } + { + win::rectangle2d rec(51, 51); + image2d<int_u8> out = level::approx::median(lena, rec); + io::pgm::save(out, "out_rec.pgm"); + } } Index: tests/morpho/general.cc --- tests/morpho/general.cc (revision 3140) +++ tests/morpho/general.cc (working copy) @@ -97,14 +97,28 @@ out = morpho::impl::general_directional(dil, lena, rec, 1); mln_assertion(out == ref); - /* // Hline. ref = morpho::impl::generic::general_on_function(ero, lena, hline); + out = morpho::impl::general_directional(ero, lena, hline, 1); + mln_assertion(out == ref); + + out = morpho::impl::general_line(ero, lena, hline); + mln_assertion(out == ref); + + // Vline. ref = morpho::impl::generic::general_on_function(ero, lena, vline); + out = morpho::impl::general_directional(ero, lena, vline, 0); + mln_assertion(out == ref); + + out = morpho::impl::general_line(ero, lena, vline); + mln_assertion(out == ref); + + /* + // Diag2d. ref = morpho::impl::generic::erosion_on_function(lena, diag2d);

15 years, 11 months

3140: Fix accu::histo_h and cleanup level::median.

by Thierry Geraud

https://svn.lrde.epita.fr/svn/oln/trunk/milena Index: ChangeLog from Thierry Geraud <thierry.geraud(a)lrde.epita.fr> Fix accu::histo_h and cleanup level::median. * mln/level/median.hh (internal::median_tests): New. (median_dir): Remove; useless, better replace by handling win::line! (impl::median): Rename as... (impl::generic::median): ...this. Update. (impl::median_line): New. (internal::mediant_dispatch): New. (include): Update. * mln/accu/transform_line.hh: New. * mln/accu/all.hh: Update. * tests/level/median_dir.cc: Remove. There is no median_dir.hh file so having this test is dull! * tests/level/median_hline2d.cc: Likewise. * tests/level/median.cc: Merge tests from removed files. * tests/level/Makefile.am: Update. * mln/accu/histo.hh (init): Fix. Forgetting to set sum_ to 0 leads to errors in median filtering... * mln/accu/median_h.hh: Upgrade file doc style. * mln/canvas/browsing/dir_struct_elt_incr_update.hh: Add some debug information; I think that this code is bugged... * tests/accu/transform_snake.cc, * tests/accu/transform_diagonal.cc, * tests/accu/transform_directional.cc (ref): Remove unused object. * tests/accu/median_h.cc: Upgrade file doc style. * tests/accu/transform_line.cc: New. * tests/accu/Makefile.am: Update. mln/accu/all.hh | 1 mln/accu/histo.hh | 6 mln/accu/median_h.hh | 3 mln/accu/transform_line.hh | 245 ++++++++++++++++++++++ mln/canvas/browsing/dir_struct_elt_incr_update.hh | 19 + mln/level/median.hh | 198 +++++++---------- tests/accu/Makefile.am | 2 tests/accu/median_h.cc | 12 - tests/accu/transform_diagonal.cc | 8 tests/accu/transform_directional.cc | 4 tests/accu/transform_line.cc | 51 ++++ tests/accu/transform_snake.cc | 5 tests/level/Makefile.am | 4 tests/level/median.cc | 31 +- 14 files changed, 436 insertions(+), 153 deletions(-) Index: mln/level/median.hh --- mln/level/median.hh (revision 3139) +++ mln/level/median.hh (working copy) @@ -41,10 +41,11 @@ # include <mln/win/shift.hh> # include <mln/win/diff.hh> +# include <mln/win/line.hh> # include <mln/canvas/browsing/snake_fwd.hh> -# include <mln/canvas/browsing/dir_struct_elt_incr_update.hh> # include <mln/accu/median_h.hh> +# include <mln/accu/transform_line.hh> namespace mln @@ -62,36 +63,33 @@ * * \pre \p input and \p output have to be initialized. */ - template <typename I, typename W, typename O> - void median(const Image& input, const Window<W>& win, - Image<O>& output); + template <typename I, typename W> + mln_concrete(I) + median(const Image& input, const Window<W>& win); - /*! Compute in \p output the median filter of image \p input in - * the direction \p dir with strength \p length. - * - * \param[in] input The image to be filtered. - * \param[in] dir The filtering direction. - * \param[in] length The filtering strength. - * \param[out] output The output image. - * - * \pre \p input and \p output have to be initialized. - * \pre \p dir is between 0 and less than the image dimension. - * \pre \p length has to be odd. - */ - template <typename I, typename O> - void median_dir(const Image& input, unsigned dir, unsigned length, - Image<O>& output); +# ifndef MLN_INCLUDE_ONLY + namespace internal + { + template <typename I, typename W> + void + median_tests(const Image& input, const Window<W>& win) + { + mln_precondition(exact(input).is_valid()); + // mln_precondition(exact(win).is_valid()); + (void) input; + (void) win; + } + + } // end of namespace level::internal -# ifndef MLN_INCLUDE_ONLY namespace impl { - // Functors. @@ -184,140 +182,108 @@ - template <typename I_, typename O> - struct median_dir_t + namespace generic { - typedef I_ I; - enum { dim = I::site::dim }; - // i/o - const I& input; - const unsigned dir; - const unsigned length; - O& output; - - // aux data - mln_psite(I) p; - accu::median_h<mln_value(I)> med; - - // ctor + template <typename I, typename W> inline - median_dir_t(const I& input, unsigned dir, unsigned length, O& output) - : // i/o - input(input), - dir(dir), - length(length), - output(exact(output)), - // aux data - p(), - med() + mln_concrete(I) + median(const Image& input, const Window<W>& win) { - } + trace::entering("level::impl::generic::median"); - inline - void init() - { - } + mlc_equal(mln_trait_image_quant(I), + trait::image::quant::low)::check(); + internal::median_tests(input, win); - inline - void init_line() - { - med.init(); - } + extension::adjust(input, win); - inline - void add_point(mln_psite(I) pt) - { - med.take(input(pt)); - } + typedef mln_concrete(I) O; + O output; + initialize(output, input); + median_t<I,W,O> f(exact(input), exact(win), output); + canvas::browsing::snake_fwd(f); - inline - void remove_point(mln_psite(I) pu) - { - med.untake(input(pu)); + trace::exiting("level::impl::generic::median"); + return output; } - inline - void next() - { - if (output.has(p)) - output(p) = med.to_result(); - } + } // end of namespace mln::level::impl::generic + + template <typename I, + typename M, unsigned i, typename C> inline - void final() + mln_concrete(I) + median_line(const Image& input, const win::line<M,i,C>& win) { + trace::entering("level::impl::median_line"); + + mlc_equal(mln_trait_image_quant(I), + trait::image::quant::low)::check(); + internal::median_tests(input, win); + + accu::median_h<mln_value(I)> a; + mln_concrete(I) output = accu::transform_line(a, input, win.length(), i); + + trace::exiting("level::impl::median_line"); + return output; } - }; // end of median_dir_t + + } // end of namespace mln::level::impl - template <typename I, typename O> + namespace internal + { + + template <typename I, typename W> inline - void median_dir_(const Image& input, unsigned dir, unsigned length, O& output) + mln_concrete(I) + median_dispatch_wrt_win(const Image& input, const Window<W>& win) { - median_dir_t<I,O> f(exact(input), dir, length, output); - canvas::browsing::dir_struct_elt_incr_update(f); + return impl::generic::median(input, win); } - - template <typename I, typename W, typename O> + template <typename I, + typename M, unsigned i, typename C> inline - void median_(const Image& input, const Window<W>& win, O& output) + mln_concrete(I) + median_dispatch_wrt_win(const Image& input, const win::line<M,i,C>& win) { - // FIXME: resize border! - median_t<I,W,O> f(exact(input), exact(win), output); - canvas::browsing::snake_fwd(f); + return impl::median_line(input, win); } -# ifdef MLN_CORE_WIN_LINE_HH - template <typename I, typename M, unsigned i, typename C, typename O> + template <typename I, typename W> inline - void median_(const Image& input, const win::line<M,i,C>& win, O& output) + mln_concrete(I) + median_dispatch(const Image& input, const Window<W>& win) { - median_dir(input, i, win.length(), output); // FIXME: Make 1 explicit! + return median_dispatch_wrt_win(input, exact(win)); } -# endif // ! MLN_CORE_WIN_LINE_HH - - } // end of namespace mln::level::impl + } // end of namespace level::internal - // Facades. + // Facade. - template <typename I, typename W, typename O> - void median(const Image& input, const Window<W>& win, - Image<O>& output) + template <typename I, typename W> + mln_concrete(I) + median(const Image& input, const Window<W>& win) { trace::entering("level::median"); - mln_assertion(exact(output).domain() == exact(input).domain()); - impl::median_(exact(input), exact(win), exact(output)); - - trace::exiting("level::median"); - } - - template <typename I, typename O> - void median_dir(const Image& input, unsigned dir, unsigned length, - Image<O>& output) - { - trace::entering("level::median_dir"); - - mlc_is(mln_trait_image_value_io(O), trait::image::value_io::read_write)::check(); - mlc_is(mln_trait_image_localization(I), - trait::image::localization::basic_grid)::check(); - mlc_converts_to(mln_value(I), mln_value(O))::check(); - - mln_precondition(exact(output).domain() == exact(input).domain()); - typedef mln_psite(I) P; - mln_precondition(dir < P::dim); - mln_precondition(length % 2 == 1); + mlc_equal(mln_trait_image_quant(I), + trait::image::quant::low)::check(); - impl::median_dir_(exact(input), dir, length, exact(output)); + internal::median_tests(input, win); + mln_concrete(I) output; + output = internal::median_dispatch(input, win); - trace::exiting("level::median_dir"); + trace::exiting("level::median"); + return output; } # endif // ! MLN_INCLUDE_ONLY Index: mln/accu/transform_line.hh --- mln/accu/transform_line.hh (revision 0) +++ mln/accu/transform_line.hh (revision 0) @@ -0,0 +1,245 @@ +// Copyright (C) 2008 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_ACCU_TRANSFORM_LINE_HH +# define MLN_ACCU_TRANSFORM_LINE_HH + +/// \file mln/accu/transform_line.hh +/// +/// Run an accumulator over a line (in a particular direction). +/// +/// \todo Import code from sandox/geraud/browsing/fwd.cc to handle the +/// case of no-domain-extension. +/// +/// \todo Specialize for fastest images. + +# include <mln/core/concept/image.hh> +# include <mln/core/concept/meta_accumulator.hh> +# include <mln/extension/adjust.hh> + + + +namespace mln +{ + + namespace accu + { + + + template <typename A, typename I> + mln_ch_value(I, mln_result(A)) + transform_line(const Accumulator<A>& a, + const Image& input, + unsigned length, unsigned dir); + + template <typename A, typename I> + mln_ch_value(I, mln_accu_with(A, mln_value(I))::result) + transform_line(const Meta_Accumulator<A>& a, + const Image& input, + unsigned length, unsigned dir); + + + +# ifndef MLN_INCLUDE_ONLY + + // Tests. + + namespace internal + { + + template <typename A, typename I> + void transform_line_tests(const Accumulator<A>& a_, const Image& input_) + { + A a = exact(a_); + const I& input = exact(input_); + + mln_precondition(input.is_valid()); + mln_psite(I)* p; + mln_precondition(sizeof(a.take(input(*p)), 0) == sizeof(int)); + + (void) p; + (void) a; + (void) input; + } + + } // end of namespace mln::accu::internal + + + namespace impl + { + + namespace generic + { + + template <typename A, typename I> + inline + mln_ch_value(I, mln_result(A)) + transform_line(const Accumulator<A>& a_, + const Image& input_, + unsigned length, unsigned dir) + { + trace::entering("accu::impl::transform_line"); + + const I& input = exact(input_); + A a = exact(a_); + + internal::transform_line_tests(a, input); + + mln_ch_value(I, mln_result(A)) output; + initialize(output, input); + + typedef mln_psite(I) P; + const P + pmin = input.domain().pmin(), + pmax = input.domain().pmax(); + const def::coord + pmax_dir = pmax[dir], + pmin_dir = pmin[dir]; + + P p = pmin, // Starting point. + qt, qu; + def::coord& p_dir = p [dir]; + def::coord& qt_dir = qt[dir]; + def::coord& qu_dir = qu[dir]; + + do + { + + // Start the run. + // --------------- + + qt = p; + qt_dir = p_dir - length / 2; + qu = qt; + a.init(); + + for (unsigned i = 0; i < length; ++i) + { + if (input.has(qt)) + a.take(input(qt)); + qt_dir++; + } + if (input.has(p)) + output(p) = a.to_result(); + + // Browse the run. + // --------------- + + while (p_dir < pmax_dir) + { + ++p_dir; + if (input.has(qt)) + a.take(input(qt)); + if (input.has(qu)) + a.untake(input(qu)); + if (input.has(p)) + output(p) = a.to_result(); + qt_dir++; + qu_dir++; + } + + p_dir = pmin_dir; + + + // Go to the next run. + // ------------------- + + for (int c = P::dim - 1; c >= 0; --c) + { + if (c == int(dir)) + continue; + if (p[c] != pmax[c]) + { + ++p[c]; + break; + } + p[c] = pmin[c]; + } + + } while (p != pmin); + + trace::exiting("accu::impl::transform_line"); + return output; + } + + } // end of namespace mln::accu::impl::generic + + } // end of namespace mln::accu::impl + + + + template <typename A, typename I> + inline + mln_ch_value(I, mln_result(A)) + transform_line(const Accumulator<A>& a, + const Image& input, + unsigned length, unsigned dir) + { + trace::entering("accu::transform_line"); + + internal::transform_line_tests(a, input); + + extension::adjust(input, length); + mln_ch_value(I, mln_result(A)) output; + output = impl::generic::transform_line(a, input, length, dir); + + trace::exiting("accu::transform_line"); + return output; + } + + + template <typename A, typename I> + inline + mln_ch_value(I, mln_accu_with(A, mln_value(I))::result) + transform_line(const Meta_Accumulator<A>& a, + const Image& input, + unsigned length, unsigned dir) + { + trace::entering("accu::transform_line"); + + typedef mln_accu_with(A, mln_value(I)) A_; + A_ a_ = accu::unmeta(exact(a), mln_value(I)()); + + internal::transform_line_tests(a_, input); + + extension::adjust(input, length); + mln_ch_value(I, mln_result(A_)) output; + output = impl::generic::transform_line(a_, input, length, dir); + + trace::exiting("accu::transform_line"); + return output; + } + + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace mln::accu + +} // end of namespace mln + + +#endif // ! MLN_ACCU_TRANSFORM_LINE_HH Index: mln/accu/all.hh --- mln/accu/all.hh (revision 3139) +++ mln/accu/all.hh (working copy) @@ -89,6 +89,7 @@ # include <mln/accu/transform_directional.hh> # include <mln/accu/transform_diagonal.hh> +# include <mln/accu/transform_line.hh> # include <mln/accu/transform_snake.hh> Index: mln/accu/histo.hh --- mln/accu/histo.hh (revision 3139) +++ mln/accu/histo.hh (working copy) @@ -1,4 +1,5 @@ -// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory (LRDE) +// Copyright (C) 2007, 2008 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 @@ -34,7 +35,6 @@ /// /// \todo Use histo::data instead of std::vector! - # include <vector> # include <algorithm> @@ -44,6 +44,7 @@ # include <mln/value/set.hh> # include <mln/histo/data.hh> + namespace mln { @@ -161,6 +162,7 @@ histo<V>::init() { h_.clear(); + sum_ = 0; } template <typename V> Index: mln/accu/median_h.hh --- mln/accu/median_h.hh (revision 3139) +++ mln/accu/median_h.hh (working copy) @@ -1,4 +1,5 @@ -// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory (LRDE) +// Copyright (C) 2007, 2008 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 Index: mln/canvas/browsing/dir_struct_elt_incr_update.hh --- mln/canvas/browsing/dir_struct_elt_incr_update.hh (revision 3139) +++ mln/canvas/browsing/dir_struct_elt_incr_update.hh (working copy) @@ -137,34 +137,53 @@ f.init_line(); // initialization (before first point of the line) + std::cout << "init" << std::endl; for (ct = pmin_dir; ct < pmin_dir_plus_half_length; ++ ct) if (f.input.has(pt)) + { + std::cout << '+' << pt << ' '; f.add_point(pt); + } // left columns (just take new points) + std::cout << "left" << std::endl; for (p_dir = pmin_dir; p_dir <= pmin_dir_plus_half_length; ++p_dir, ++ct) { if (f.input.has(pt)) + { + std::cout << '+' << pt << ' '; f.add_point(pt); + } f.next(); } // middle columns (both take and untake) + std::cout << "middle" << std::endl; cu = pmin_dir; for (; p_dir <= pmax_dir_minus_half_length; ++cu, ++p_dir, ++ct) { if (f.input.has(pt)) + { + std::cout << '+' << pt << ' '; f.add_point(pt); + } if (f.input.has(pu)) + { + std::cout << '-' << pu << ' '; f.remove_point(pu); + } f.next(); } // right columns (now just untake old points) + std::cout << "right" << std::endl; for (; p_dir <= pmax_dir; ++cu, ++p_dir) { if (f.input.has(pu)) + { + std::cout << '-' << pu << ' '; f.remove_point(pu); + } f.next(); } Index: tests/level/median.cc --- tests/level/median.cc (revision 3139) +++ tests/level/median.cc (working copy) @@ -1,4 +1,5 @@ -// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory (LRDE) +// Copyright (C) 2007, 2008 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 @@ -25,10 +26,9 @@ // reasons why the executable file might be covered by the GNU General // Public License. -/*! \file tests/level/median.cc - * - * \brief Test on mln::level::median. - */ +/// \file tests/level/median.cc +/// +/// Test on mln::level::median. #include <mln/core/image/image2d.hh> #include <mln/win/rectangle2d.hh> @@ -47,13 +47,20 @@ using namespace mln; using value::int_u8; - win::rectangle2d rect(5, 5); - border::thickness = 6; - image2d<int_u8> lena; io::pgm::load(lena, MLN_IMG_DIR "/lena.pgm"); - image2d<int_u8> out(lena.domain()); - - level::median(lena, rect, out); - io::pgm::save(out, "out.pgm"); + { + win::rectangle2d rect(51, 51); + image2d<int_u8> out = level::median(lena, rect); + io::pgm::save(out, "out_rect.pgm"); + } + { + win::rectangle2d rect(1, 51); + win::hline2d line(51); + image2d<int_u8> + ref = level::median(lena, rect), + out = level::median(lena, line); + mln_assertion(out == ref); + io::pgm::save(out, "out_line.pgm"); + } } Index: tests/level/Makefile.am --- tests/level/Makefile.am (revision 3139) +++ tests/level/Makefile.am (working copy) @@ -13,9 +13,7 @@ convert \ median \ median_ \ - median_dir \ median_fast \ - median_hline2d \ saturate \ sort_psites \ stretch \ @@ -31,9 +29,7 @@ convert_SOURCES = convert.cc median_SOURCES = median.cc median__SOURCES = median_.cc -median_dir_SOURCES = median_dir.cc median_fast_SOURCES = median_fast.cc -median_hline2d_SOURCES = median_hline2d.cc saturate_SOURCES = saturate.cc sort_psites_SOURCES = sort_psites.cc stretch_SOURCES = stretch.cc Index: tests/accu/transform_snake.cc --- tests/accu/transform_snake.cc (revision 3139) +++ tests/accu/transform_snake.cc (working copy) @@ -44,9 +44,6 @@ image2d<int> ima(4, 5); win::rectangle2d rec(3, 3); - image2d<unsigned> - out = accu::transform_snake(accu::meta::count(), ima, rec), - ref(ima.domain()); - + image2d<unsigned> out = accu::transform_snake(accu::meta::count(), ima, rec); mln_assertion(out == (pw::cst(rec.size()) | ima.domain())); } Index: tests/accu/median_h.cc --- tests/accu/median_h.cc (revision 3139) +++ tests/accu/median_h.cc (working copy) @@ -1,4 +1,5 @@ -// Copyright (C) 2007, 2008 EPITA Research and Development Laboratory (LRDE) +// Copyright (C) 2007, 2008 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 @@ -25,16 +26,16 @@ // reasons why the executable file might be covered by the GNU General // Public License. -/*! \file tests/accu/median_h.cc - * - * \brief Tests on mln::accu::median_h. - */ +/// \file tests/accu/median_h.cc +/// +/// Tests on mln::accu::median_h. #include <mln/core/image/image2d.hh> #include <mln/value/int_u8.hh> #include <mln/accu/median_h.hh> + int main() { using namespace mln; @@ -66,4 +67,5 @@ mln_assertion(med.to_result() == 7u); } + } Index: tests/accu/transform_diagonal.cc --- tests/accu/transform_diagonal.cc (revision 3139) +++ tests/accu/transform_diagonal.cc (working copy) @@ -44,17 +44,13 @@ { win::diag2d w(3); - image2d<unsigned> - out = accu::transform_diagonal(accu::meta::count(), ima, w), - ref(ima.domain()); + image2d<unsigned> out = accu::transform_diagonal(accu::meta::count(), ima, w); mln_assertion(out == (pw::cst(w.size()) | ima.domain())); } { win::backdiag2d w(3); - image2d<unsigned> - out = accu::transform_diagonal(accu::meta::count(), ima, w), - ref(ima.domain()); + image2d<unsigned> out = accu::transform_diagonal(accu::meta::count(), ima, w); mln_assertion(out == (pw::cst(w.size()) | ima.domain())); } Index: tests/accu/transform_line.cc --- tests/accu/transform_line.cc (revision 0) +++ tests/accu/transform_line.cc (revision 0) @@ -0,0 +1,51 @@ +// Copyright (C) 2008 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. + +/// \file tests/accu/transform_line.cc +/// +/// Tests on mln::accu::transform_line. + +#include <mln/core/image/image2d.hh> +#include <mln/accu/transform_line.hh> +#include <mln/accu/count.hh> +#include <mln/pw/all.hh> +#include <mln/level/compare.hh> + + +int main() +{ + using namespace mln; + + image2d<unsigned> ima(4, 5); + unsigned len = 3; + for (unsigned dir = 0; dir < 2; ++dir) + { + image2d<unsigned> out = accu::transform_line(accu::meta::count(), ima, len, dir); + mln_assertion(out == (pw::cst(3) | ima.domain())); + } + +} Index: tests/accu/Makefile.am --- tests/accu/Makefile.am (revision 3139) +++ tests/accu/Makefile.am (working copy) @@ -22,6 +22,7 @@ transform \ transform_diagonal \ transform_directional \ + transform_line \ transform_snake \ tuple @@ -44,6 +45,7 @@ transform_SOURCES = transform.cc transform_diagonal_SOURCES = transform_diagonal.cc transform_directional_SOURCES = transform_directional.cc +transform_line_SOURCES = transform_line.cc transform_snake_SOURCES = transform_snake.cc tuple_SOURCES = tuple.cc Index: tests/accu/transform_directional.cc --- tests/accu/transform_directional.cc (revision 3139) +++ tests/accu/transform_directional.cc (working copy) @@ -46,9 +46,7 @@ for (unsigned dir = 0; dir < 2; ++dir) { - image2d<unsigned> - out = accu::transform_directional(accu::meta::count(), ima, rec, dir), - ref(ima.domain()); + image2d<unsigned> out = accu::transform_directional(accu::meta::count(), ima, rec, dir); mln_assertion(out == (pw::cst(rec.size()) | ima.domain())); } }

15 years, 11 months

3139: Add more details in step 4 in tutorial.

by Guillaume Lazzara

* samples/fill-proto.cc.raw: new file. Inline code inserted in tutorial. * samples/tuto4_genericity_and_algorithms.cc: Add more code. * tutorial.tex: add more details. Explain the code. --- milena/ChangeLog | 10 + milena/doc/tutorial/samples/fill-proto.cc.raw | 7 + .../samples/tuto4_genericity_and_algorithms.cc | 13 ++ milena/doc/tutorial/tutorial.tex | 181 +++++++++++++++++--- 4 files changed, 183 insertions(+), 28 deletions(-) create mode 100644 milena/doc/tutorial/samples/fill-proto.cc.raw diff --git a/milena/ChangeLog b/milena/ChangeLog index 9472f63..e9d3d63 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,3 +1,13 @@ +2009-01-08 Guillaume Lazzara <z(a)lrde.epita.fr> + + Add more details in step 4 in tutorial. + + * samples/fill-proto.cc.raw: new file. Inline code inserted in tutorial. + + * samples/tuto4_genericity_and_algorithms.cc: Add more code. + + * tutorial.tex: add more details. Explain the code. + 2009-01-06 Guillaume Lazzara <z(a)lrde.epita.fr> Add fun::meta::green and fun::meta::blue. diff --git a/milena/doc/tutorial/samples/fill-proto.cc.raw b/milena/doc/tutorial/samples/fill-proto.cc.raw new file mode 100644 index 0000000..f0bd0fe --- /dev/null +++ b/milena/doc/tutorial/samples/fill-proto.cc.raw @@ -0,0 +1,7 @@ +namespace data +{ + + template <typename I, typename D> + void fill(Image& ima, const D& data); + +} diff --git a/milena/doc/tutorial/samples/tuto4_genericity_and_algorithms.cc b/milena/doc/tutorial/samples/tuto4_genericity_and_algorithms.cc index ca5e7f4..1c80453 100644 --- a/milena/doc/tutorial/samples/tuto4_genericity_and_algorithms.cc +++ b/milena/doc/tutorial/samples/tuto4_genericity_and_algorithms.cc @@ -36,6 +36,19 @@ int main() lena = duplicate(lena_bak); // \{ + p_array<point2d> arr; + for (def::coord row = geom::min_row(lena); row < geom::max_row(lena); ++row) + for (def::coord col = geom::min_row(lena); col < geom::max_col(lena); ++col) + if (((row + col) % 2) == 0) + arr.append(point2d(row, col)); + // \} + // \{ + for (def::coord row = geom::min_row(lena); row < geom::max_row(lena); ++row) + for (def::coord col = geom::min_row(lena); col < geom::max_col(lena); ++col) + if (((row + col) % 2) == 0) + opt::at(lena, row, col) = literal::green; + // \} + // \{ data::fill((lena | fun::p2b::chess()).rw(), literal::green); // \} doc::ppmsave(lena, "tuto4_genericity_and_algorithms"); diff --git a/milena/doc/tutorial/tutorial.tex b/milena/doc/tutorial/tutorial.tex index d3aca8e..8cae3af 100644 --- a/milena/doc/tutorial/tutorial.tex +++ b/milena/doc/tutorial/tutorial.tex @@ -58,6 +58,7 @@ % #1 : section name % #2 : section title \newcommand{\doxysection}[2]{% +\vspace{1cm} \label{#1} \backslash endhtmlonly% \backslash section #1 #2% @@ -302,14 +303,14 @@ $$ \backslash endhtmlonly \backslash page tutorial Tutorial -- \backslash subpage tutoforeword -- \backslash subpage loadnsave -- \backslash subpage tutofirstimage -- \backslash subpage tutochangeimage -- \backslash subpage tutogenericity -- \backslash subpage tutoconvimage -- \backslash subpage tutowinneighb -- \backslash subpage tutograph +- \backslash subpage tuto0 +- \backslash subpage tuto1 +- \backslash subpage tuto2 +- \backslash subpage tuto3 +- \backslash subpage tuto4 +- \backslash subpage tuto5 +- \backslash subpage tuto6 +- \backslash subpage tuto7 \backslash page quickref Quick Reference Guide - \backslash subpage installation @@ -323,6 +324,7 @@ $$ - \backslash subpage imamemmgmt - \backslash subpage basicops - \backslash subpage graphandima +- \backslash subpage functions - \backslash subpage arithmops - \backslash subpage mathtools - \backslash subpage debugtools @@ -350,19 +352,19 @@ A copy of the license is provided in the file COPYING.DOC. \begin{htmlonly} %==================================== -\doxychapter{tutoforeword}{Step 0: Foreword} +\doxychapter{tuto0}{Step 0: Foreword} - image2d - typical use case \begin{center}% - \hspace{1cm} Go to \doxyref{loadnsave}~ \longrightarrow% + \hspace{1cm} Go to \doxyref{tuto1}~ \longrightarrow% \end{center}% %==================================== -\doxychapter{loadnsave}{Step 1: Load and save images} +\doxychapter{tuto1}{Step 1: Load and save images} After this step you shoud know how to: \begin{itemize} @@ -396,12 +398,12 @@ The supported file formats and their associated image value types are listed in section \doxyref{imaio}. \vspace{2cm} -\tutotoc{tutoforeword}{tutofirstimage} +\tutotoc{tuto0}{tuto2} %==================================== -\doxychapter{tutofirstimage}{Step 2: Create your first image} +\doxychapter{tuto2}{Step 2: Create your first image} After this step you should know how to: \begin{itemize} @@ -409,7 +411,7 @@ After this step you should know how to: \item display an image in console mode. \end{itemize} -\doxysee{tuto2_first_image.cc}. +\doxysee{tuto2_first_image.cc} \vspace{2cm} @@ -444,12 +446,12 @@ though. A more detailed description can be found in section \vspace{2cm} \begin{center} - \tutotoc{loadnsave}{tutochangeimage} + \tutotoc{tuto1}{tuto3} \end{center} %==================================== -\doxychapter{tutochangeimage}{Step 3: Read and write images} +\doxychapter{tuto3}{Step 3: Read and write images} After this step you should know how to: \begin{itemize} @@ -458,7 +460,7 @@ After this step you should know how to: \end{itemize} -\doxysee{tuto3_rw_image.cc}. +\doxysee{tuto3_rw_image.cc} \vspace{2cm} First create an empty color image with a \var{box2d} of 40x40 as domain. @@ -499,12 +501,12 @@ the reference guide. \vspace{2cm} \begin{center} - \tutotoc{tutofirstimage}{tutogenericity} + \tutotoc{tuto2}{tuto4} \end{center} %==================================== -\doxychapter{tutogenericity}{Step 4: Genericity and algorithms} +\doxychapter{tuto4}{Step 4: Regions of interest} After this step you should know how to: \begin{itemize} @@ -512,14 +514,55 @@ After this step you should know how to: \item work only on a region of interest in an image. \end{itemize} -\doxysee{tuto4_genericity_and_algorithms.cc}. +\doxysee{tuto4_genericity_and_algorithms.cc} \vspace{2cm} +In the previous step, we used the routine \code{data::fill} in order to change +the values of an image. It was convenient since we did not need to write any +loop by hand. The problem was that we could not specificy which region to fill +with data. This point leads us to talk about the genericity in Olena. +All along this example we will use the routine \code{data::fill} to illustrate +the possibilities in Olena but note that every image types passed to the +routine in this example could be passed to any algorithm in the library +expecting an image. + +One main feature of Olena is to be able to easily work on regions of interest in +images. According to the way a region of interest is defined, a specific image +type is associated. Therefore, each algorithm knows exactly what it is working +on and can behave differently in order to be the most efficient as possible. + + +All along this step, we will use the following image \var{lena} declared as +follow: + \doxycode[1]{tuto4_genericity_and_algorithms} \doxyimg{small-enlarged} +\code{data::fill} has the following prototype: +\doxyrawcode{fill-proto} +So keep in mind that the first argument we will try to construct in each +example is an image. Note that this image \must be writable, e.g. non-const. + + +%************************** +\doxysection{tuto4imadomainsiteset}{Image domain restricted by a site set} + +Here, we would like to fill a small square with green in \var{lena}. We want +this square to be of size 20x20 and to be located at (20,20). +First, we just need to declare this square which is actually a site set, a +\type{box2d}. \doxycode[2]{tuto4_genericity_and_algorithms} + +Then, we just need to tell \code{data::fill} that we would like to fill the +image \var{lena} but only in this restricted part of the image domain. \doxycode[3]{tuto4_genericity_and_algorithms} +Operator '|' can be read 'restricted to'. So below, we wrote 'image \var{lena} +restricted to the region of interest \var{roi}'. Actually this is not directly +\var{lena} which is restricted but its domain. + +Note the use of \code{rw()} which is mandatory due to C++ limitations. In C++, +the image created by \code{lena | roi} is \code{const}, e.g. read-only, though +\code{data::fill} expect a \code{non-const} image, e.g. read-write. \begin{center} \begin{tabular}{c c c} @@ -530,7 +573,21 @@ After this step you should know how to: \end{center} +%************************** +\doxysection{tuto4imadomainfun}{Image domain restricted by a function} + +Sometimes it may not be easy to construct a site set to restrict an image. For +instance, if we would like to fill with green one point out of two in the whole +image, we \textbf{do not want} to write anyloop or construct any site set by hand: \doxycode[4]{tuto4_genericity_and_algorithms} +\doxycode[5]{tuto4_genericity_and_algorithms} + +A shorter way to get exactly the same result, is to define that behavior by a +function. In Milena, a function \code{fun::p2v::chess} is available and does +exactly what we want. Like if it was a site set, simply restrict the image with +the function. + +\doxycode[6]{tuto4_genericity_and_algorithms} \begin{center} \begin{tabular}{c c c} \doxyimg{small-enlarged} & ~\huge{\rightarrow}~ & \doxyfigure[2]{tuto4_genericity_and_algorithms}{3cm} \\ @@ -539,9 +596,41 @@ After this step you should know how to: \end{tabular} \end{center} +Note that the functions provided by default in Olena are actually functors. +Thus, they must be constructed like any object which why it is written +\code{lena | fun::p2v::chess()} and not \code{lena | fun::p2v::chess}. + + +FIXME: Talk about C functions once it is possible in Milena. + + +%************************** +\doxysection{tuto4imadomainmask}{Image domain restricted by a mask} + +Sometimes instead of having a site site or a function defining the regions of +interest we want to work on, we may have a binary image, e.g. a mask. When a +site has its value set to true, it means it will be considered as part of the +masked image domain. Otherwise, it will not. + +We construct a mask, \var{mask}. It is initialized with the same geometry properties as +\var{lena} +(domain, extension...). +\doxycode[7]{tuto4_genericity_and_algorithms} + +Then, we cannot restrict directly \var{lena} with \var{mask}. These two images +have the same domain, so \code{lena | mask.domain()} would not do anything. +\var{mask} is a classical image, there is not specific type for mask images. +Therefore, we need to express that we want that binary image to be considered as +a mask. +\doxycode[8]{tuto4_genericity_and_algorithms} +\code{pw::value(mask)} makes explicit the fact that \var{mask} is actually a +mask. It means, that for each site of \var{mask}, if its value is set to +\val{true}, then the value associated to this site in \var{lena} must be set +to green. +In this example, we use two images for two different use case: \var{lena} store +the result and the modifications make by the algorithm and \var{mask} allows the +algorithm to know whether it must treat a site or not. -\doxycode[5]{tuto4_genericity_and_algorithms} -\doxycode[6]{tuto4_genericity_and_algorithms} \begin{center} \begin{tabular}{c c c c} \doxyimg{small-enlarged} & @@ -553,8 +642,34 @@ After this step you should know how to: \end{tabular} \end{center} -\doxycode[7]{tuto4_genericity_and_algorithms} -\doxycode[8]{tuto4_genericity_and_algorithms} + +%************************** +\doxysection{tuto4imadomainpredicate}{Image domain restricted by a predicate} + +Restricting by a predicate is exactly like restricting with a function. We want +to talk about that separately in order to present the small routines available. +They enable the user to write quick and efficient predicate/function. + +The two routines are : +\begin{itemize} + \item pw::value(Image), as seen in a previous section, it is a way to express + 'for each site value in Image'. + \item pw::cst(Value), it is a way to specify a value to which a site value can + be compared. +\end{itemize} + +Let's see a common use case. +First, we binarize lena according to specific criterions, only site values with +specific colors are set to true in \var{lena_bw}. Others are set to false. This +image will be used in order to label the components. +Let's consider a labeled image \var{label}. Each component of \var{lena} is labeled with a unique index. +Now, we consider that that our region of interest is a component with id 16. +Then we want to express 'for each site \var{fill} its value in \var{lena} if its +value in \var{label} is equal to 16'. +\doxycode[9]{tuto4_genericity_and_algorithms} + + +\doxycode[10]{tuto4_genericity_and_algorithms} \begin{center} \begin{tabular}{c c c c} @@ -571,19 +686,19 @@ After this step you should know how to: \vspace{2cm} \begin{center} - \tutotoc{tutochangeimage}{tutoconvimage} + \tutotoc{tuto3}{tuto5} \end{center} %==================================== -\doxychapter{tutoconvimage}{Step 5: Conversion between image values} +\doxychapter{tuto5}{Step 5: Conversion between image values} %==================================== -\doxychapter{tutowinneighb}{Step 6: Using structural elements with algorithms} +\doxychapter{tuto6}{Step 6: Using structural elements with algorithms} %==================================== -\doxychapter{tutograph}{Step 7: Handle graphes with an image} +\doxychapter{tuto7}{Step 7: Handle graphes with an image} \end{htmlonly} @@ -595,6 +710,7 @@ After this step you should know how to: \doxysection{requirements}{Requirements} +%---------------- \doxysubsection{compexample}{To compile the user examples} \begin{itemize} @@ -605,6 +721,7 @@ After this step you should know how to: +%---------------- \doxysubsection{compdoc}{To compile the documentation (Optional)} \begin{itemize} @@ -616,6 +733,7 @@ After this step you should know how to: \item the `texinfo' utilities from GNU \end{itemize} +%---------------- \doxysubsection{devolena}{To develop in Olena} \begin{itemize} \item GNU Autotools (Autoconf 2.54, Automake 1.10) @@ -2228,6 +2346,13 @@ Output: %==================================== \newpage \clearpage +\doxychapter{functions}{Functions} + +FIXME write it + +%==================================== +\newpage +\clearpage \doxychapter{arithmops}{Arithmetical operators} FIXME write it -- 1.5.6.5

15 years, 11 months

Jump to page:

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Olena-patches January 2009