Olena-patches February 2006

olena-patches@lrde.epita.fr

4 participants
32 discussions

399: Add some documentation and types to Metalic.

by Roland Levillain

https://svn.lrde.epita.fr/svn/oln/trunk/metalic Index: ChangeLog from Roland Levillain <roland(a)lrde.epita.fr> Add some documentation and types to Metalic. * mlc/cmp.hh: More documentation. (is_found, is_not_found, is_ok): New. * mlc/implies.hh, mlc/is_a.hh: Fix Doxygen comment. * mlc/flags.hh: More documentation. (dummy, locked): New. From Thierry G�raud. * mlc/value.hh: Remove dead code. cmp.hh | 35 ++++++++++++-- flags.hh | 149 +++++++++++++++++++++++++++++++++++++++++++++++++++---------- implies.hh | 4 - is_a.hh | 4 - value.hh | 19 ------- 5 files changed, 162 insertions(+), 49 deletions(-) Index: mlc/implies.hh --- mlc/implies.hh (revision 398) +++ mlc/implies.hh (working copy) @@ -31,9 +31,9 @@ # include <mlc/bool.hh> -/*! \macro mlc_implies(Left_BExpr, Right_BExpr) +/*! \def mlc_implies(Left_BExpr, Right_BExpr) ** -** Macro correponding to mlc::implies_<L, R>, for use in a template +** Macro corresponding to mlc::implies_<L, R>, for use in a template ** context. ** ** \see mlc::implies_<L, R> Index: mlc/is_a.hh --- mlc/is_a.hh (revision 398) +++ mlc/is_a.hh (working copy) @@ -205,7 +205,7 @@ -/*! \macro mlc_is_a(T, U) +/*! \def mlc_is_a(T, U) ** ** Macro that answers if T is an U. T should be a type and U can have ** different forms: class, template class, etc. The result is a @@ -240,7 +240,7 @@ mlc::wrap_<typename mlc::internal::is_a<sizeof(mlc::form::of())>::ret<T,U > > -/*! \macro mlc_is_a_(T, U) +/*! \def mlc_is_a_(T, U) ** ** Macro equivalent as mlc_is_a(T, U) for use in a non templated ** context. The result is a Boolean expression type. Index: mlc/flags.hh --- mlc/flags.hh (revision 398) +++ mlc/flags.hh (working copy) @@ -38,9 +38,15 @@ /*! \class mlc::abstract::flag ** - ** Abstract base class for types that are only flags. + ** Abstract base class for types that are flags. A flag type + ** expresses a particular property translated by the name of the + ** type. For instance, mlc::undefined is a flag type which + ** means "declared but not defined". ** - ** Example: mlc::undefined is a mlc::abstract::flag. + ** Flag types have no interface; they only serve as types. + ** + ** The flags provided in mlc are: dummy, locked, none, not_found, + ** undefined, and unknown. */ struct flag : public type {}; @@ -48,37 +54,91 @@ } // end of namespace mlc::abstract - /*! \class mlc::undefined + /*! \class mlc::dummy ** - ** Flag class to state that a type is undefined, that is, declared - ** but not defined. + ** Flag class to value a type when one knows that this value does + ** not matter and will not be used. ** - ** Sample use: you want to define a trait to get the signed version - ** of a type T. For that, you write: + ** The dummy type appears typically in some part of meta-program + ** that are ignored. In mlc_typedef_onlyif, for instance, dummy is + ** returned when the guard value is false. When defining a + ** pattern matching meta-program, if a clause is not a match, the + ** returned type for this clause is evaluated into dummy. + */ + struct dummy : public abstract::flag {}; + + + /*! \class mlc::locked + ** + ** Flag class whose purpose is to state and ensure that a type + ** should not be re-defined (or specialized) by the client. + ** + ** Let us consider a type that should not be re-defined or + ** specialized by the client. Such a type is defined having + ** mlc::locked as base class. Inserting the static check + ** mlc_is_a(type, locked) then ensures that this type is untouched. + ** + ** Sample use: First a type (set_foo) is declared for the user to + ** specialize it: + ** + ** template <typename T> struct set_foo; + ** + ** and the access to this specialization (handled by the type + ** get_foo), for use in a meta-program, is written once for all. + ** The access code should not be re-defined by the client so it is + ** tagged as locked: ** ** template <typename T> - ** struct signed_type_of - ** { - ** typedef mlc::undefined ret; + ** struct get_foo : public mlc::locked, + ** public set_foo<T> { + ** using set_foo<T>::ret; ** }; ** - ** which means that the return type (ret) is not defined by default. - ** Put differently, this trait is just declared. So far, the - ** type "signed_type_of<unsigned short>::ret" is "mlc::undefined". - ** - ** Other flags are mlc::unknown, mlc::none, and mlc::not_found. + ** The meta-program that reads the value of get_foo<T>::ret also + ** checks that get_foo<T> derives from mlc::locked. That thus + ** ensures that the client has not confuse set_foo with get_foo. */ - struct undefined : public abstract::flag {}; + struct locked : public abstract::flag {}; - struct unknown : public abstract::flag {}; + /*! \class mlc::none + ** + ** Flag class to state that there is no type corresponding to a + ** request. + ** + ** Sample use 1: In the context of a variadic parameter list, none + ** is the default value for every parameter after the first one. + ** + ** With: + ** template <typename P1, + ** typename P2 = none, + ** typename P3 = none> + ** struct foo { + ** typedef P1 param1; + ** typedef P2 param2; + ** typedef P3 param3; + ** }; + ** + ** instantiated into foo<int, float>, we thus have param3 set to + ** none. + ** + ** Sample use 2: The type none can be used as a trait value. For + ** instance: + ** + ** template<> + ** struct super_type_of <int> { + ** typedef none ret; + ** }; + */ struct none : public abstract::flag {}; /*! \class mlc::not_found ** - ** Flag class to state that a type is not found (for use in the - ** context of trying to retrieve a type). + ** Flag class to state that a type is not found. This class is for + ** use in the context of trying to retrieve a type. More precisely, + ** this flag type should only appear as a return of a piece of + ** meta-program. ** ** Design issue: this flag is used in some meta-code to handle the ** case of an "absent" typedef. For instance it is used in the @@ -86,14 +146,59 @@ ** mlc_typedef(std::vector<int>, value_type) is int, whereas ** mlc_typedef(std::vector<int>, walue_type) is mlc::not_found. ** - ** Other flags are mlc::undefined, mlc::unknown, and mlc::none. - ** ** \see mlc_typedef */ struct not_found : public abstract::flag {}; - // FIXME: add corresponding is_* types + /*! \class mlc::undefined + ** + ** Flag class to state that a type is undefined, that is, declared + ** but not defined. + ** + ** Sample use: When you want to define a trait to get the signed + ** version of a type T, you write: + ** + ** template <typename T> + ** struct signed_type_of + ** { + ** typedef mlc::undefined ret; + ** }; + ** + ** meaning that the return type (ret) is not defined by default. + ** Put differently, this trait is just declared. So far, the trait + ** value signed_type_of<unsigned short>::ret is mlc::undefined. If + ** it happens that this trait value is not specialized in some + ** following code, this value thus remains mlc::undefined, which + ** clearly denotes an error. + ** + ** \see mlc::abstract::flag. + */ + struct undefined : public abstract::flag {}; + + + /*! \class mlc::unknown + ** + ** Flag class to state that a result is yet unknown. + ** + ** Sample use: This flag can be used in a meta-program to express + ** that a sub-program fails to give the expected result. For + ** instance in: + ** + ** template <class T> + ** struct foo { + ** typedef sub_program_1 ret1; + ** typedef sub_program_2 ret2; + ** typedef typename if_< neq_<ret1, unknown>, + ** ret1, + ** ret2 >::ret ret; + ** }; + */ + struct unknown : public abstract::flag {}; + + + // FIXME: Doc. + struct not_ok : public abstract::flag {}; } // end of namespace mlc Index: mlc/value.hh --- mlc/value.hh (revision 398) +++ mlc/value.hh (working copy) @@ -164,23 +164,4 @@ # include <mlc/bool.hh> -// FIXME: the following code causes inclusion recursion... - -// # include <mlc/is_a.hh> - -// namespace mlc { - -// template <typename T> -// struct is_value : public mlc_is_a(T, mlc::abstract::value) -// { -// }; - -// template <typename T> -// struct is_not_value : public not_<mlc_is_a(T, mlc::abstract::value)> -// { -// }; - -// } // end of namespace mlc - - #endif // ! METALIC_VALUE_HH Index: mlc/cmp.hh --- mlc/cmp.hh (revision 398) +++ mlc/cmp.hh (working copy) @@ -39,13 +39,14 @@ namespace mlc { - // FIXME: code moved from the end of value.hh + /// Check whether \a T is a mlc::abstract::value. template <typename T> struct is_value : public mlc_is_a(T, mlc::abstract::value) { }; + /// Check whether \a T is not a mlc::abstract::value. template <typename T> struct is_not_value : public not_<mlc_is_a(T, mlc::abstract::value)> { @@ -54,7 +55,7 @@ /// Equality test between a couple of types. - + /// \{ template <typename T1, typename T2> struct eq_ : private ensure_list_< is_not_value<T1>, is_not_value<T2> >, @@ -67,10 +68,10 @@ public true_ { }; - + /// \} /// Inequality test between a couple of types. - + /// \{ template <typename T1, typename T2> struct neq_ : private ensure_list_< is_not_value<T1>, is_not_value<T2> >, @@ -83,7 +84,33 @@ public false_ { }; + /// \} + + + /*--------------------------------------. + | Syntactic sugar for flag comparison. | + `--------------------------------------*/ + + /// Shortcuts for comparison with mlc::not_found. + /// \{ + template <typename T> + struct is_found : public neq_<T, not_found> + { + }; + + template <typename T> + struct is_not_found : public neq_<T, not_found> + { + }; + /// \} + + /// Check whether a type is a sound (supposedly before using it). + struct is_ok : public ands_< neq_<T, not_found>, + neq_<T, not_ok>, + neq_<T, undefined > > + { + }; } // end of namespace mlc

18 years, 10 months

proto-1.0 398: Update Anisotropic diffusion for a generic use.

by Nicolas Widynski

https://svn/svn/oln/prototypes/proto-1.0/olena Index: ChangeLog from Nicolas Widynski <nicolas.widynski(a)lrde.epita.fr> Update Anisotropic diffusion for a generic use. * oln/level/anisotropic_diffusion.hh: Update. * oln/makefile.src: Update. level/anisotropic_diffusion.hh | 90 ++++++++++++++++++++++++++--------------- makefile.src | 5 +- 2 files changed, 62 insertions(+), 33 deletions(-) Index: oln/level/anisotropic_diffusion.hh --- oln/level/anisotropic_diffusion.hh (revision 397) +++ oln/level/anisotropic_diffusion.hh (working copy) @@ -31,6 +31,7 @@ # include <oln/basics.hh> # include <oln/utils/clone.hh> # include <oln/morpho/gradient_morpho.hh> +# include <oln/utils/clean_boundaries.hh> # define SQR(u) u*u # define ABS(u) u >= 0 ? u : -u @@ -41,59 +42,82 @@ namespace impl { - template <typename I> - oln_ch_concrete_type(I, std::vector<double>) - gradient_on_each_side_(const abstract::image& input) + // version 2d of the 4nbhs gradient + template <typename T> + image2d<std::vector<double> > + gradient_on_each_side_(const image2d<T>& input) { - oln_ch_concrete_type(I, std::vector<double>) g(input.size(), "gradient"); - oln_type_of(I, fwd_piter) p(input.size()); - oln_type_of(I, point) pt; + image2d<std::vector<double> > g(input.size(), "gradient"); + fwd_piter2d p(input.size()); + point2d pt; for_all_p(p) { pt = p; // N - g.at(p).push_back((double)input[oln_type_of(I, point)((coord_t)(pt.row() - 1), pt.col())].value() - - input[oln_type_of(I, point)((coord_t)(pt.row()), pt.col())].value()); + g.at(p).push_back((input(pt.row() - 1, pt.col()) - input[p]) / 2); // S - g.at(p).push_back((double)input[oln_type_of(I, point)((coord_t)(pt.row() + 1), pt.col())].value() - - input[oln_type_of(I, point)((coord_t)(pt.row()), pt.col())].value()); + g.at(p).push_back((input(pt.row() + 1, pt.col()) - input[p]) / 2); // E - g.at(p).push_back((double)input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col() + 1))].value() - - input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col()))].value()); + g.at(p).push_back((input(pt.row(), pt.col() + 1) - input[p]) / 2); // W - g.at(p).push_back((double)input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col() - 1))].value() - - input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col()))].value()); + g.at(p).push_back((input(pt.row(), pt.col() - 1) - input[p]) / 2); } return g; } - template <typename T> - void clean_ima(image2d<T>& ima) + template <typename I> + double compute_capa(const abstract::image& input) { - for (int j = 0; j < ima.size().ncols(); j++) + // static version of cappa (near the variance) + return 6; + + + // 4 nbhs version of gradient + + /* + double K = 0; + double seuil = 0; + + oln_type_of(I, concrete) grad(input.size()); + oln_type_of(I, fwd_piter) p(input.size()); + oln_type_of(I, point) pt; + + for_all_p(p) { - ima(-1, j) = ima(0, j); - ima(ima.size().nrows(), j) = ima(ima.size().nrows() - 1, j); + pt = p; + + grad[p] = (double) ((ABS((double) (input[oln_type_of(I, point)(pt.row() - 1, pt.col())].value()))) + + (ABS((double) (input[oln_type_of(I, point)(pt.row() + 1, pt.col())].value()))) + + (ABS((double) (input[oln_type_of(I, point)(pt.row(), pt.col() + 1)].value()))) + + (ABS((double) (input[oln_type_of(I, point)(pt.row(), pt.col() - 1)].value()))) + + (ABS((double) (- 4 * input[oln_type_of(I, point)((coord_t)(pt.row()), pt.col())].value())))) / 8; + + seuil = grad[p] > seuil ? grad[p] : seuil; } - for (int j = 0; j < ima.size().nrows(); j++) + seuil *= 0.9; + + for_all_p(p) { - ima(j, -1) = ima(j, 0); - ima(j, ima.size().ncols()) = ima(j, ima.size().ncols() - 1); - } + // if (grad[p] < (int)seuil) + if (grad[p] > (int)seuil) + K++; } + std::cout << K << std::endl; + return K; + */ - template <typename I> - double compute_capa(const abstract::image& input) - { + // morphologic version of gradient + + /* double K = 0; double seuil = 0.9 * 255; @@ -103,9 +127,11 @@ for_all_p(p) { if (grad[p] < (int)seuil) + // if (grad[p] > (int)seuil) K++; } return K; + */ } @@ -114,6 +140,7 @@ return 1 / (1 + SQR(grad / K)); } + // generic function of the anisotropic diffusion template <typename I> oln_type_of(I, concrete) anisotropic_diffusion_(const abstract::image& input, unsigned nb_it) @@ -134,8 +161,8 @@ while (conv == false) { - clean_ima(a_d.exact()); - grad = gradient_on_each_side_(a_d); + utils::clean_boundaries(a_d.exact()); + grad = gradient_on_each_side_(a_d.exact()); K = compute_capa(a_d); change = false; error = 0; @@ -162,7 +189,7 @@ std::cout << "error " << error << std::endl; - if (it >= nb_it or error < 0.1 or change == false) + if ((it >= nb_it and nb_it != 0) or error < 0.1 or change == false) conv = true; it++; @@ -171,14 +198,13 @@ return a_d; } - - } // end of namespace oln::level::impl + // nb_it = 0 signifies until algorithm convergence. template <typename I> oln_type_of(I, concrete) - anisotropic_diffusion(const abstract::image& input, unsigned nb_it) + anisotropic_diffusion(const abstract::image& input, unsigned nb_it = 0) { return impl::anisotropic_diffusion_(input.exact(), nb_it); } Index: oln/makefile.src --- oln/makefile.src (revision 397) +++ oln/makefile.src (working copy) @@ -12,6 +12,8 @@ \ appli/denoising/nl_means.hh \ \ + appli/inpainting/image_inpainting.hh \ + \ basics1d.hh \ basics2d.hh \ basics3d.hh \ @@ -170,6 +172,7 @@ io/vectorial.hh \ io/write_image.hh \ \ + level/anisotropic_diffusion.hh \ level/arith.hh \ level/compare.hh \ level/extrema_components.hh \ @@ -177,7 +180,6 @@ level/invert.hh \ level/level_components.hh \ level/logic.hh \ - level/anisotropic_diffusion.hh \ \ morpho/closing.hh \ morpho/dilation.hh \ @@ -209,6 +211,7 @@ \ utils/buffer.hh \ utils/clone.hh \ + utils/clean_boundaries.hh \ utils/invert.hh \ utils/key.hh \ utils/md5.hh \

18 years, 10 months

proto-1.0 397: Util function : set outsides boundaries at the same value of image boundaries.

by Nicolas Widynski

https://svn/svn/oln/prototypes/proto-1.0/olena Index: ChangeLog from Nicolas Widynski <nicolas.widynski(a)lrde.epita.fr> Util function : set outsides boundaries at the same value of image boundaries. * oln/utils/clean_boundaries.hh: New. To clean image boundaries. clean_boundaries.hh | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) Index: oln/utils/clean_boundaries.hh --- oln/utils/clean_boundaries.hh (revision 0) +++ oln/utils/clean_boundaries.hh (revision 0) @@ -0,0 +1,79 @@ +// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this library; see the file COPYING. If not, write to +// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, +// MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to +// produce an executable, this file does not by itself cause the +// resulting executable to be covered by the GNU General Public +// License. This exception does not however invalidate any other +// reasons why the executable file might be covered by the GNU General +// Public License. + +#ifndef OLN_UTILS_CLEAN_BOUNDARIES_HH +# define OLN_UTILS_CLEAN_BOUNDARIES_HH + +# include <oln/core/abstract/image.hh> +# include <oln/core/1d/image1d.hh> +# include <oln/core/2d/image2d.hh> + +namespace oln { + + namespace utils { + + namespace impl { + + template <typename T> + void clean_boundaries_(image1d<T>& ima) + { + ima(-1) = ima(0); + ima(ima.size().nindices()) = ima(ima.size().nindices() - 1); + } + + template <typename T> + void clean_boundaries_(image2d<T>& ima) + { + for (int j = 0; j < ima.size().ncols(); j++) + { + ima(-1, j) = ima(0, j); + ima(ima.size().nrows(), j) = ima(ima.size().nrows() - 1, j); + } + for (int j = 0; j < ima.size().nrows(); j++) + { + ima(j, -1) = ima(j, 0); + ima(j, ima.size().ncols()) = ima(j, ima.size().ncols() - 1); + } + } + + + } // end of namespace oln::utils::impl + + + // set outsides boundaries of the image at the boundary value. + template <typename I> + void clean_boundaries(abstract::image& input) + { + if (input.size().border() != 0) + impl::clean_boundaries_(input.exact()); + } + + } // end of namespace oln::utils + +} // end of namespace oln + +#endif // ! OLN_UTILS_CLEAN_BOUNDARIES_HH

18 years, 10 months

proto-1.0 396: Add Image Inpainting algorithm.

by Nicolas Widynski

https://svn/svn/oln/prototypes/proto-1.0/olena Index: ChangeLog from Nicolas Widynski <nicolas.widynski(a)lrde.epita.fr> Add Image Inpainting algorithm. * oln/appli/inpainting/image_inpainting.hh: New. Based on Bertalmio algorithm. image_inpainting.hh | 330 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 330 insertions(+) Index: oln/appli/inpainting/image_inpainting.hh --- oln/appli/inpainting/image_inpainting.hh (revision 0) +++ oln/appli/inpainting/image_inpainting.hh (revision 0) @@ -0,0 +1,330 @@ +// Copyright (C) 2001-2006 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this library; see the file COPYING. If not, write to +// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, +// MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to +// produce an executable, this file does not by itself cause the +// resulting executable to be covered by the GNU General Public +// License. This exception does not however invalidate any other +// reasons why the executable file might be covered by the GNU General +// Public License. + +#ifndef OLENA_IMAGE_INPAINTING_HH +# define OLENA_IMAGE_INPAINTING_HH + +# include <mlc/is_a.hh> +# include <oln/basics.hh> +# include <oln/basics2d.hh> +# include <ntg/all.hh> +# include <oln/convolution/laplacian.hh> +# include <oln/utils/clone.hh> +# include <oln/morpho/gradient_morpho.hh> +# include <oln/level/anisotropic_diffusion.hh> +# include <vector> + +# define get_data(STR, ITER, ATTR) STR[ITER].call(ATTR) +# define get_data2(STR, X, Y, ATTR) STR(X,Y).call(ATTR) +# define set_data(STR, ITER, ATTR, VAL) STR[ITER].call(ATTR, VAL) +# define SQUARE(u) u*u + +namespace oln { + + namespace inpainting { + + + // Fwd decl of the image inpainting computation + + template <typename I> + oln_type_of(I, concrete) + image_inpainting(const abstract::image& input); + + + namespace impl { + + + template <typename I, typename II> + oln_ch_concrete_type(I, std::vector<double>) + vect_laplacian_(const abstract::image& lpl, + const abstract::image<II>& mb) + { + oln_ch_concrete_type(I, std::vector<double>) v_lpl(lpl.size(), "laplacian_vector"); + oln_type_of(I, fwd_piter) p(lpl.size()); + oln_type_of(I, point) pt; + + for_all_p(p) + { + if (mb[p] == false) + { + pt = p; + set_data(v_lpl, p, &std::vector<double>::push_back, + (lpl[oln_type_of(I, point)((coord_t)(pt.row() + 1), pt.col())].value() - + lpl[oln_type_of(I, point)((coord_t)(pt.row() - 1), pt.col())].value()) / 2); + + set_data(v_lpl, p, &std::vector<double>::push_back, + (lpl[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col() + 1))].value() - + lpl[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col() - 1))].value()) / 2); + } + } + return v_lpl; + } + + + template <typename I, typename II> + oln_ch_concrete_type(I, std::vector<double>) + compute_direction_(const abstract::image& input, + const abstract::image<II>& mb) + { + oln_ch_concrete_type(I, std::vector<double>) n(input.size(), "direction_vector"); + oln_type_of(I, fwd_piter) p(input.size()); + oln_type_of(I, point) pt; + double Iyn, Ixn; + + for_all_p(p) + { + if (mb[p] == false) + { + pt = p; + + Iyn = (-input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col() + 1))].value() + + input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col() - 1))].value()) / 2; + + Ixn = (input[oln_type_of(I, point)((coord_t)(pt.row() + 1), pt.col())].value() - + input[oln_type_of(I, point)((coord_t)(pt.row() - 1), pt.col())].value()) / 2; + + set_data(n, p, &std::vector<double>::push_back, Iyn); + set_data(n, p, &std::vector<double>::push_back, Ixn); + } + } + return n; + } + + // do the inner product between lpl and n + template <typename I, typename II, typename III> + oln_ch_concrete_type(I, double) + compute_b_(const abstract::image& v_lpl, + const abstract::image<II>& n, + const abstract::image<III>& mb) + { + oln_ch_concrete_type(I, double) b(v_lpl.size(), "beta"); + oln_type_of(I, fwd_piter) p(v_lpl.size()); + + for_all_p(p) + { + if (mb[p] == false) + b[p] = (double) get_data(n, p, &std::vector<double>::front) * get_data(v_lpl, p, &std::vector<double>::front) + + get_data(n, p, &std::vector<double>::back) * get_data(v_lpl, p, &std::vector<double>::back); + } + return b; + } + + double min(double a, double b) + { + return a b ? a : b; + } + + template <typename I, typename II> + oln_type_of(I, concrete) + compute_grad_(const abstract::image& input, + const abstract::image& b, + const abstract::image<II>& mb) + { + oln_type_of(I, concrete) g(input.size(), "gradient"); + oln_type_of(I, fwd_piter) p(input.size()); + oln_type_of(I, point) pt; + + for_all_p(p) + { + if (mb[p] == false) + { + pt = p; + g[p] = 0; + + if (b[p] > 0) + { + + g[p] = (sqrt(SQUARE(min(input[p].value() - + input[oln_type_of(I, point)((coord_t)(pt.row() - 1), pt.col())].value(), 0)) + + + SQUARE(max(input[oln_type_of(I, point)((coord_t)(pt.row() + 1), pt.col())].value() - + input[p].value(), 0)) + + + SQUARE(min(input[p].value() - + input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col() - 1))].value(), 0)) + + + SQUARE(max(input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col() + 1))].value() - + input[p].value(), 0))) / 2); + + if (g[p] > 10) + g[p] = 10; + } + + if (b[p] < 0) + { + g[p] = (sqrt(SQUARE(max(input[p].value() - + input[oln_type_of(I, point)((coord_t)(pt.row() - 1), pt.col())].value(), 0)) + + + SQUARE(min(input[oln_type_of(I, point)((coord_t)(pt.row() + 1), pt.col())].value() - + input[p].value(), 0)) + + + SQUARE(max(input[p].value() - + input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col() - 1))].value(), 0)) + + + SQUARE(min(input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col() + 1))].value() - + input[p].value(), 0))) / 2); + + if (g[p] > 10) + g[p] = 10; + + } + } + } + return g; + } + + template <typename T> + std::ostream& operator<<(std::ostream& ostr, const image2d<std::vector<T> >& ima) + { + for (int i = 0; i < 9; i++) + { + for (int j = 0; j < 9; j++) + { + ostr << "(" << ima(i,j).value()[0] << "," << ima(i,j).value()[1] << ") " << "\t"; + if ((ima(i,j).value()[0] == 0 or ima(i,j).value()[0] == 1) and + (ima(i,j).value()[1] == 0 or ima(i,j).value()[1] == 1)) + ostr << "\t"; + } + + ostr << std::endl; + } + return ostr; + } + + + template <typename T> + std::ostream& operator<<(std::ostream& ostr, const image2d<T>& ima) + { + for (int i = 0; i < 9; i++) + { + for (int j = 0; j < 9; j++) + ostr << ima(i,j).value() << "\t"; + ostr << std::endl; + } + return ostr; + } + + + template <typename T> + void clean_ima(image2d<T>& ima) + { + for (int j = 0; j < ima.size().ncols(); j++) + { + ima(-1, j) = ima(0, j); + ima(ima.size().nrows(), j) = ima(ima.size().nrows() - 1, j); + } + + for (int j = 0; j < ima.size().nrows(); j++) + { + ima(j, -1) = ima(j, 0); + ima(j, ima.size().ncols()) = ima(j, ima.size().ncols() - 1); + } + } + + + template <typename I, typename II> + oln_ch_concrete_type(I, ntg::int_u8) + image_inpainting_(const abstract::image& input, + const abstract::image<II>& mask) + { + oln_ch_concrete_type(I, ntg::int_u8) res(input.size(), "res"); + oln_type_of(I, concrete) ii(input.size(), "image_inpainting"); + oln_type_of(II, concrete) dil = morpho::erosion(morpho::erosion(mask.exact(), win_c8p()), win_c8p()); + oln_type_of(I, concrete) lpl(input.size(), "laplacian"); + oln_ch_concrete_type(I, std::vector<double>) v_lpl(input.size(), "laplacian_vector"); + oln_ch_concrete_type(I, std::vector<double>) n(input.size(), "direction_vector"); + oln_type_of(I, concrete) g(input.size(), "gradient"); + oln_type_of(I, concrete) b(input.size(), "beta"); + oln_type_of(I, fwd_piter) p(input.size()); + + bool conv = false; + double error = 0; + double norm = 0; + int i = 0; + + ii = clone(input.exact()); + ii = level::anisotropic_diffusion(ii, 1); + + while (conv == false) + { + clean_ima(ii); + error = 0; + lpl = convolution::laplacian(ii); + v_lpl = vect_laplacian_(lpl, dil); + n = compute_direction_(ii, dil); + b = compute_b_(v_lpl, n, dil); + g = compute_grad_(ii, b, dil); + + for_all_p(p) + { + if (mask[p] == false) + { + ii[p] = ii[p] + 0.1 * (g[p] * b[p] > 0 ? (g[p] / 255.0) * b[p] : (g[p] / 255.0) * b[p]); + error += b[p] > 0 ? b[p] : -b[p]; + } + } + + std::cerr << "erreur :" << error << std::endl; + + if (i % 15 == 0) + ii = level::anisotropic_diffusion(ii, 1); + + if (error < 0.1 or ++i > 10000000) + { + for_all_p(p) + { + res[p] = ii[p].value() < 0 ? 0 : (ii[p].value() > 255 ? 255 : ii[p].value()); + } + conv = true; + } + + }; + return res; + } + + } // end of namespace oln::impl::inpainting + + template <typename I, typename II> + oln_ch_concrete_type(I, ntg::int_u8) + image_inpainting(const abstract::image& input, + const abstract::image2d<II>& mask) + { + return impl::image_inpainting_(input.exact(), mask.exact()); + } + + } // end of namespace oln::appli + +} // end of namespace oln + + +#endif // ! OLENA_IMAGE_INPAINTING_HH

18 years, 10 months

proto-1.0 395: Update anisotropic diffusion filter.

by Nicolas Widynski

https://svn/svn/oln/prototypes/proto-1.0/olena Index: ChangeLog from Nicolas Widynski <nicolas.widynski(a)lrde.epita.fr> Update anisotropic diffusion filter. * oln/level/anisotropic_diffusion.hh: Fix bug. anisotropic_diffusion.hh | 41 ++++++++++++++++++++++++++++------------- 1 file changed, 28 insertions(+), 13 deletions(-) Index: oln/level/anisotropic_diffusion.hh --- oln/level/anisotropic_diffusion.hh (revision 394) +++ oln/level/anisotropic_diffusion.hh (working copy) @@ -31,8 +31,9 @@ # include <oln/basics.hh> # include <oln/utils/clone.hh> # include <oln/morpho/gradient_morpho.hh> + # define SQR(u) u*u -# define ABS(u) u > 0 ? u : -u +# define ABS(u) u >= 0 ? u : -u namespace oln { @@ -94,7 +95,6 @@ double compute_capa(const abstract::image& input) { double K = 0; - // on admet un 255 dans l'image double seuil = 0.9 * 255; oln_type_of(I, concrete) grad = morpho::gradient_morpho(input); @@ -108,25 +108,27 @@ return K; } + double diffusion_coefficient(double grad, double K) { - std::cout << "----------------" << std::endl; - std::cout << grad << std::endl; - std::cout << K << std::endl; return 1 / (1 + SQR(grad / K)); } template <typename I> oln_type_of(I, concrete) - anisotropic_diffusion_(const abstract::image& input) + anisotropic_diffusion_(const abstract::image& input, unsigned nb_it) { oln_type_of(I, concrete) a_d(input.size(), "gradient"); oln_ch_concrete_type(I, std::vector<double>) grad(input.size(), "gradient"); oln_type_of(I, fwd_piter) p(input.size()); bool conv = false; + bool change = false; double K = 0; double modify = 0; + double error = 0; + double tmp = 0; + unsigned it = 1; a_d = clone(input.exact()); @@ -135,6 +137,8 @@ clean_ima(a_d.exact()); grad = gradient_on_each_side_(a_d); K = compute_capa(a_d); + change = false; + error = 0; for_all_p(p) { @@ -142,17 +146,28 @@ typename std::vector<double>::const_iterator it; - for (it = grad[p].value().begin(); it != grad[p].value().end(); it++) - modify += *it * diffusion_coefficient(ABS((double)*it), K); + for (it = grad.at(p).begin(); it != grad.at(p).end(); it++) + modify += (double)(*it) * diffusion_coefficient((double)*it, K); - if (a_d[p] + 0.14 * modify >= 0 and a_d[p] + 0.14 * modify <= 255) + if (modify != 0 and a_d[p] + 0.14 * modify >= 0 and a_d[p] + 0.14 * modify <= 255) + { + tmp = a_d[p]; a_d[p] = a_d[p] + 0.14 * modify; + if ((double)a_d[p] != tmp) + change = true; + } + + error += ABS(modify); } - std::cout << modify << std::endl; - if (not modify) + std::cout << "error " << error << std::endl; + + if (it >= nb_it or error < 0.1 or change == false) conv = true; + + it++; }; + return a_d; } @@ -163,9 +178,9 @@ template <typename I> oln_type_of(I, concrete) - anisotropic_diffusion(const abstract::image& input) + anisotropic_diffusion(const abstract::image& input, unsigned nb_it) { - return impl::anisotropic_diffusion_(input.exact()); + return impl::anisotropic_diffusion_(input.exact(), nb_it); } } // end of namespace oln::level

18 years, 10 months

394: Add implies, comma, typedef ret handling; then update.

by Thierry Geraud

https://svn.lrde.epita.fr/svn/oln/trunk/metalic Index: ChangeLog from Thierry Geraud <theo(a)lrde.epita.fr> Add implies, comma, typedef ret handling; then update. * mlc/implies.hh: New file. * mlc/is_a.hh: Update. * mlc/comma.hh: New file. * mlc/typedef.hh (in_, in_onlyif_): Rename as... (from_, from_only_if_): ...this. (mlc_typedef_in, mlc_typedef_in_): New macros. (mlc_ret): New macro. comma.hh | 39 +++++++++++++++++++++++++++++++++ implies.hh | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ is_a.hh | 4 +-- typedef.hh | 41 +++++++++++++++++++++++++++-------- 4 files changed, 144 insertions(+), 11 deletions(-) Index: mlc/implies.hh --- mlc/implies.hh (revision 0) +++ mlc/implies.hh (revision 0) @@ -0,0 +1,71 @@ +// Copyright (C) 2005, 2006 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this library; see the file COPYING. If not, write to +// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, +// MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to +// produce an executable, this file does not by itself cause the +// resulting executable to be covered by the GNU General Public +// License. This exception does not however invalidate any other +// reasons why the executable file might be covered by the GNU General +// Public License. + +#ifndef METALIC_IMPLIES_HH +# define METALIC_IMPLIES_HH + +# include <mlc/bool.hh> + + +/*! \macro mlc_implies(Left_BExpr, Right_BExpr) +** +** Macro correponding to mlc::implies_<L, R>, for use in a template +** context. +** +** \see mlc::implies_<L, R> +*/ + +# define mlc_implies(Left_BExpr, Right_BExpr) \ + typename mlc::implies_<Left_BExpr, Right_BExpr>::ret + +# define mlc_implies_(Left_BExpr, Right_BExpr) \ + mlc::implies_<Left_BExpr, Right_BExpr>::ret + + +namespace mlc +{ + + /*! \class mlc::implies_<L, R> + ** + ** Logical implication "L => R" with L and R being Boolean + ** expression types. This class is also a Boolean expression type. + ** + ** Sample use: + ** mlc::implies_< mlc_is_builtin(T), mlc_eq(T, int) >::ensure(); + ** which means "if T is a buit-in type, it has to be int". + */ + + template <typename L, typename R> + struct implies_ + : public bool_<( !mlc_bool(L) || mlc_bool(R) )> + {}; + +} // end of namespace mlc + + + +#endif // ! METALIC_IMPLIES_HH Index: mlc/is_a.hh --- mlc/is_a.hh (revision 393) +++ mlc/is_a.hh (working copy) @@ -237,7 +237,7 @@ */ # define mlc_is_a(T, U) \ -mlc::wrap<typename mlc::internal::is_a<sizeof(mlc::form::of())>::ret<T,U > > +mlc::wrap_<typename mlc::internal::is_a<sizeof(mlc::form::of())>::ret<T,U > > /*! \macro mlc_is_a_(T, U) @@ -249,7 +249,7 @@ */ # define mlc_is_a_(T, U) \ -mlc::wrap<mlc::internal::is_a< sizeof(mlc::form::of())>::ret<T,U > > +mlc::wrap_<mlc::internal::is_a< sizeof(mlc::form::of())>::ret<T,U > > #endif // ! METALIC_IS_A_HH Index: mlc/comma.hh --- mlc/comma.hh (revision 0) +++ mlc/comma.hh (revision 0) @@ -0,0 +1,39 @@ +// Copyright (C) 2006 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this library; see the file COPYING. If not, write to +// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, +// MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to +// produce an executable, this file does not by itself cause the +// resulting executable to be covered by the GNU General Public +// License. This exception does not however invalidate any other +// reasons why the executable file might be covered by the GNU General +// Public License. + +#ifndef METALIC_COMMA_HH +# define METALIC_COMMA_HH + + +// FIXME: doc + +# define mlc_comma_1(a, b) a, b +# define mlc_comma_2(a, b, c) a, b, c +# define mlc_comma_3(a, b, c, d) a, b, c, d + + +#endif // ! METALIC_COMMA_HH Index: mlc/typedef.hh --- mlc/typedef.hh (revision 393) +++ mlc/typedef.hh (working copy) @@ -169,7 +169,7 @@ struct TypedefName \ { \ template <class T> \ - struct in_ \ + struct from_ \ { \ private: \ typedef internal::TypedefName helper_; \ @@ -184,17 +184,17 @@ }; \ \ template <class T, bool b> \ - struct in_onlyif_; \ + struct from_onlyif_; \ \ \ template <class T> \ - struct in_onlyif_ <T, true> \ + struct from_onlyif_ <T, true> \ { \ - typedef typename in_<T>::ret ret; \ + typedef typename from_<T>::ret ret; \ }; \ \ template <class T> \ - struct in_onlyif_ <T, false> \ + struct from_onlyif_ <T, false> \ { \ typedef mlc::dummy ret; \ }; \ @@ -214,13 +214,25 @@ */ #define mlc_typedef(Type, TypedefName) \ - typename typedef_::TypedefName::in_<Type>::ret + typename typedef_::TypedefName::from_<Type>::ret #define mlc_typedef_(Type, TypedefName) \ - typedef_::TypedefName::in_<Type>::ret + typedef_::TypedefName::from_<Type>::ret +/*! \macro mlc_typedef_in(Namespace, Type, TypedefName) +** +** FIXME: doc +*/ + +# define mlc_typedef_in(Namespace, Type, TypedefName) \ + typename Namespace::typedef_::TypedefName::from_<Type>::ret + +# define mlc_typedef_in_(Namespace, Type, TypedefName) \ + Namespace::typedef_::TypedefName::from_<Type>::ret + + /*! \macro mlc_typedef_onlyif(Type, TypedefName, Bexpr) ** @@ -228,11 +240,22 @@ */ #define mlc_typedef_onlyif(Type, TypedefName, Bexpr) \ - typename typedef_::TypedefName::in_onlyif_<Type, mlc_bool(Bexpr)>::ret + typename typedef_::TypedefName::from_onlyif_<Type, mlc_bool(Bexpr)>::ret #define mlc_typedef_onlyif_(Type, TypedefName, Bexpr) \ - typedef_::TypedefName::in_onlyif_<Type, mlc_bool(Bexpr)>::ret + typedef_::TypedefName::from_onlyif_<Type, mlc_bool(Bexpr)>::ret + + + +/*! \FIXME: what's the correct comment flag here? +** +** Since we often rely on having a typedef named "ret" in types, we offer +** a default equipment for this particular typedef. FIXME: doc +*/ + +mlc_decl_typedef(ret); +# define mlc_ret(Type) typename typedef_::ret::from_<Type>::ret

18 years, 10 months

proto-1.0 393: Add anisotropic diffusion.

by Nicolas Widynski

https://svn/svn/oln/prototypes/proto-1.0/olena Index: ChangeLog from Nicolas Widynski <nicolas.widynski(a)lrde.epita.fr> Add anisotropic diffusion. * oln/level/anisotropic_diffusion.hh: New. Anisotropic diffusion algorithm. * oln/makefile.src: Add anisotropic_diffusion.hh to the makefile. level/anisotropic_diffusion.hh | 175 +++++++++++++++++++++++++++++++++++++++++ makefile.src | 1 2 files changed, 176 insertions(+) Index: oln/level/anisotropic_diffusion.hh --- oln/level/anisotropic_diffusion.hh (revision 0) +++ oln/level/anisotropic_diffusion.hh (revision 0) @@ -0,0 +1,175 @@ +// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this library; see the file COPYING. If not, write to +// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, +// MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to +// produce an executable, this file does not by itself cause the +// resulting executable to be covered by the GNU General Public +// License. This exception does not however invalidate any other +// reasons why the executable file might be covered by the GNU General +// Public License. + +#ifndef OLENA_LEVEL_ANISOTROPIC_DIFFUSION_HH +# define OLENA_LEVEL_ANISOTROPIC_DIFFUSION_HH + +# include <oln/basics.hh> +# include <oln/utils/clone.hh> +# include <oln/morpho/gradient_morpho.hh> +# define SQR(u) u*u +# define ABS(u) u > 0 ? u : -u + +namespace oln { + + namespace level { + + namespace impl { + + template <typename I> + oln_ch_concrete_type(I, std::vector<double>) + gradient_on_each_side_(const abstract::image& input) + { + oln_ch_concrete_type(I, std::vector<double>) g(input.size(), "gradient"); + oln_type_of(I, fwd_piter) p(input.size()); + oln_type_of(I, point) pt; + + for_all_p(p) + { + pt = p; + + // N + g.at(p).push_back((double)input[oln_type_of(I, point)((coord_t)(pt.row() - 1), pt.col())].value() - + input[oln_type_of(I, point)((coord_t)(pt.row()), pt.col())].value()); + + // S + g.at(p).push_back((double)input[oln_type_of(I, point)((coord_t)(pt.row() + 1), pt.col())].value() - + input[oln_type_of(I, point)((coord_t)(pt.row()), pt.col())].value()); + + // E + g.at(p).push_back((double)input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col() + 1))].value() - + input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col()))].value()); + + // W + g.at(p).push_back((double)input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col() - 1))].value() - + input[oln_type_of(I, point)(pt.row(), (coord_t)(pt.col()))].value()); + } + + return g; + } + + + template <typename T> + void clean_ima(image2d<T>& ima) + { + for (int j = 0; j < ima.size().ncols(); j++) + { + ima(-1, j) = ima(0, j); + ima(ima.size().nrows(), j) = ima(ima.size().nrows() - 1, j); + } + + for (int j = 0; j < ima.size().nrows(); j++) + { + ima(j, -1) = ima(j, 0); + ima(j, ima.size().ncols()) = ima(j, ima.size().ncols() - 1); + } + } + + + template <typename I> + double compute_capa(const abstract::image& input) + { + double K = 0; + // on admet un 255 dans l'image + double seuil = 0.9 * 255; + + oln_type_of(I, concrete) grad = morpho::gradient_morpho(input); + oln_type_of(I, fwd_piter) p(input.size()); + + for_all_p(p) + { + if (grad[p] < (int)seuil) + K++; + } + return K; + } + + double diffusion_coefficient(double grad, double K) + { + std::cout << "----------------" << std::endl; + std::cout << grad << std::endl; + std::cout << K << std::endl; + return 1 / (1 + SQR(grad / K)); + } + + template <typename I> + oln_type_of(I, concrete) + anisotropic_diffusion_(const abstract::image& input) + { + oln_type_of(I, concrete) a_d(input.size(), "gradient"); + oln_ch_concrete_type(I, std::vector<double>) grad(input.size(), "gradient"); + oln_type_of(I, fwd_piter) p(input.size()); + + bool conv = false; + double K = 0; + double modify = 0; + + a_d = clone(input.exact()); + + while (conv == false) + { + clean_ima(a_d.exact()); + grad = gradient_on_each_side_(a_d); + K = compute_capa(a_d); + + for_all_p(p) + { + modify = 0; + + typename std::vector<double>::const_iterator it; + + for (it = grad[p].value().begin(); it != grad[p].value().end(); it++) + modify += *it * diffusion_coefficient(ABS((double)*it), K); + + if (a_d[p] + 0.14 * modify >= 0 and a_d[p] + 0.14 * modify <= 255) + a_d[p] = a_d[p] + 0.14 * modify; + } + + std::cout << modify << std::endl; + if (not modify) + conv = true; + }; + return a_d; + } + + + + } // end of namespace oln::level::impl + + + template <typename I> + oln_type_of(I, concrete) + anisotropic_diffusion(const abstract::image& input) + { + return impl::anisotropic_diffusion_(input.exact()); + } + + } // end of namespace oln::level + +} // end of namespace oln + +#endif // ! OLENA_LEVEL_ANISOTROPIC_DIFFUSION_HH Index: oln/makefile.src --- oln/makefile.src (revision 392) +++ oln/makefile.src (working copy) @@ -177,6 +177,7 @@ level/invert.hh \ level/level_components.hh \ level/logic.hh \ + level/anisotropic_diffusion.hh \ \ morpho/closing.hh \ morpho/dilation.hh \

18 years, 10 months

Re: [Olena-patches] proto-1.0 391: Implementation of a denoising image processing algorithm : Non Local Means.

by Nicolas

This implementation is not generic but shows difficulties with the use of point and dpoint. For details, please see the topic in lrde.olena (coming soon :)) about the arguing of points and dpoints in Olena. -- Widynski Nicolas Promo 2007

18 years, 10 months

proto-1.0 391: Implementation of a denoising image processing algorithm : Non Local Means.

by Nicolas Widynski

https://svn/svn/oln/prototypes/proto-1.0/olena Index: ChangeLog from Nicolas Widynski <nicolas.widynski(a)lrde.epita.fr> Implementation of a denoising image processing algorithm : Non Local Means. * oln/appli/denoising/nl_means.hh: New. NL-means algorithm. * oln/makefile.src: Update for laplacian convolution and NL-means algorithm. appli/denoising/nl_means.hh | 141 ++++++++++++++++++++++++++++++++++++++++++++ makefile.src | 4 + 2 files changed, 145 insertions(+) Index: oln/appli/denoising/nl_means.hh --- oln/appli/denoising/nl_means.hh (revision 0) +++ oln/appli/denoising/nl_means.hh (revision 0) @@ -0,0 +1,141 @@ +// Copyright (C) 2001, 2002, 2004, 2005, 2006 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this library; see the file COPYING. If not, write to +// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, +// MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to +// produce an executable, this file does not by itself cause the +// resulting executable to be covered by the GNU General Public +// License. This exception does not however invalidate any other +// reasons why the executable file might be covered by the GNU General +// Public License. + +#ifndef OLENA_DENOISING_NLMEANS_HH +# define OLENA_DENOISING_NLMEANS_HH + +# define SQR(u) u*u +# define PI 3.141592653589793238462643 + +# include <cmath> +# include <oln/level/fill.hh> + +namespace oln { + + namespace denoising { + + namespace impl { + + + template<typename I> + const oln_type_of(I, concrete) gaussian_mask(double variance, + int rows, + int cols) + { + oln_type_of(I, concrete) g_m(rows, cols, 0); + + int i, j; + + for (i = 0; i < rows; i++) + for (j = 0; j < cols; j++) + g_m(i,j) = (1 / 2 * PI * SQR(variance)) * exp(-(SQR(rows / 2 - i) + SQR(cols / 2 - j))); + + return g_m; + } + + + template<typename I> + oln_type_of(I, concrete) nl_means_(const oln::abstract::image& input, + int window, + double variance, + int horizon) + { + oln_type_of(I, concrete) nl(input.size(), "nl_means"); + oln_type_of(I, concrete) g_m; + oln_type_of(I, fwd_piter) p(input.size()); + oln_type_of(I, point) pt1; + oln_type_of(I, point) pt2; + + int i, j, k, l, i2, j2, k2, l2; + double dist; + double w; + double Z; + double val; + + + level::fill(nl, 0); + + g_m = gaussian_mask(variance, window, window); + + for (i = 0; i < input.size().ncols(); i++) + { + for (j = 0; j < input.size().nrows(); j++) + { + Z = 0; + val = 0; + + for (k = i - horizon; k = 0 and k < (int)input.size().ncols() and l >= 0 and l < (int)input.size().nrows())) + continue; + + dist = 0; + w = 0; + + for (k2 = k - window / 2, i2 = i - window / 2; k2 < (k + window / 2 + window % 2); k2++, i2++) + for (l2 = l - window / 2, j2 = j - window / 2; l2 < (l + window / 2 + window % 2); l2++, j2++) + + if (i2 >= 0 and i2 < input.size().ncols() && j2 >= 0 and j2 < input.size().nrows() and + k2 >= 0 and k2 < input.size().ncols() && l2 >= 0 and l2 < input.size().nrows()) + { + dist += g_m.exact()(k2 + window / 2 - k, l2 + window / 2 - l) * + ((input.exact()(i2, j2) - input.exact()(k2, l2)) * + (input.exact()(i2, j2) - input.exact()(k2, l2))); + } + + w = exp(-dist/(SQR(variance))); + val += w * input.exact()(k, l).value(); + Z += w; + } + + nl(i,j) = val / Z; + } + + std::cout << (int)input.size().nrows() << " / " < + oln_type_of(I, concrete) nl_means(const oln::abstract::image& input, + int window, + double variance, + int horizon) + { + return impl::nl_means_(input.exact(), window, variance, horizon); + } + + + } // end of namespace oln::denoising + +} // end of namespace oln + +#endif // OLENA_DENOISING_NLMEANS_HH Index: oln/makefile.src --- oln/makefile.src (revision 390) +++ oln/makefile.src (working copy) @@ -10,6 +10,8 @@ appli/astro/tree_coherence_check.hh \ appli/astro/tree_statistics.hh \ \ + appli/denoising/nl_means.hh \ + \ basics1d.hh \ basics2d.hh \ basics3d.hh \ @@ -30,6 +32,8 @@ convert/stretch.hh \ convert/value_to_point.hh \ \ + convolution/laplacian.hh \ + \ core/1d/array1d.hh \ core/1d/bkd_piter1d.hh \ core/1d/dpoint1d.hh \

18 years, 10 months

proto-1.0 390: Update laplacian convolution.

by Nicolas Widynski

https://svn/svn/oln/prototypes/proto-1.0/olena Index: ChangeLog from Nicolas Widynski <nicolas.widynski(a)lrde.epita.fr> Update laplacian convolution. * oln/convolution/laplacian.hh: Update file. laplacian.hh | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) Index: oln/convolution/laplacian.hh --- oln/convolution/laplacian.hh (revision 389) +++ oln/convolution/laplacian.hh (working copy) @@ -45,13 +45,11 @@ namespace impl { - // FIXME : type I must be a ntg::int_s8 u8... - template <typename I> oln_type_of(I, concrete) laplacian_(const abstract::image2d& input) { - oln_type_of(I, concrete) lpl(input.size(), "laplacian second derivative"); + oln_type_of(I, concrete) lpl(input.size(), "laplacian"); oln_type_of(I, fwd_piter) p(input.size()); oln_type_of(I, point) pt; oln_type_of(I, value) v; @@ -73,7 +71,7 @@ template <typename I> oln_type_of(I, concrete) - laplacian_(const abstract::image& input) + laplacian(const abstract::image& input) { return impl::laplacian_(input.exact()); }

18 years, 10 months

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Olena-patches February 2006