* apps/graph-morpho/morpho.hh (impl::dilation_e2v(const mln::image2d<T>&)) (impl::erosion_v2e(const mln::image2d<T>&)) (impl::erosion_e2v(const mln::image2d<T>&)) (impl::dilation_v2e(const mln::image2d<T>&)): New functions. --- milena/ChangeLog | 11 ++++++ milena/apps/graph-morpho/morpho.hh | 71 ++++++++++++++++++++++++++++++++++++ 2 files changed, 82 insertions(+), 0 deletions(-) diff --git a/milena/ChangeLog b/milena/ChangeLog index b623361..116f75a 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,5 +1,16 @@ 2009-09-21 Roland Levillain <roland@lrde.epita.fr> + Add implementations of dilations/erosions on mln::image2d<T>. + + * apps/graph-morpho/morpho.hh + (impl::dilation_e2v(const mln::image2d<T>&)) + (impl::erosion_v2e(const mln::image2d<T>&)) + (impl::erosion_e2v(const mln::image2d<T>&)) + (impl::dilation_v2e(const mln::image2d<T>&)): + New functions. + +2009-09-21 Roland Levillain <roland@lrde.epita.fr> + Introduce a ``tolerant'' image_if morpher. * apps/graph-morpho/image_if_large.hh: New. diff --git a/milena/apps/graph-morpho/morpho.hh b/milena/apps/graph-morpho/morpho.hh index 277bd36..8457c55 100644 --- a/milena/apps/graph-morpho/morpho.hh +++ b/milena/apps/graph-morpho/morpho.hh @@ -47,6 +47,8 @@ # include <mln/data/paste.hh> +# include "apps/graph-morpho/image_if_large.hh" + // FIXME: Careful, cplx2d.hh is a symlink to a file in Théo's sandbox, // and might be changed. # include "apps/graph-morpho/cplx2d.hh" @@ -327,6 +329,75 @@ namespace impl return output; } + // ------------------------------------------------------------- // + // Implementations on (mln::image2d-based) cubical 2-complexes. // + // ------------------------------------------------------------- // + + /* Note the operator `||' in the following routines: we have to use + our own ``tolerant'' version of mln::image_if (namely + mln::image_if_large) for these dilations and erosions to + work. */ + + /// Dilation from edges to vertices (\f$\delta^\bullet\f$) on + /// an mln::image2d<T>-based cubical complex. + template <typename T> + inline + mln::image2d<T> + dilation_e2v(const mln::image2d<T>& input) + { + mln::image2d<T> output(input.domain()); + mln::data::fill(output, false); + mln::data::paste(dilation(input || mln::cplx2d::is_pixel, + mln::cplx2d::p2e()), + output); + return output; + } + + /// Erosion from vertices to edges (\f$\epsilon^\times\f$) on an + /// mln::image2d<T>-based cubical complex. + template <typename T> + inline + mln::image2d<T> + erosion_v2e(const mln::image2d<T>& input) + { + mln::image2d<T> output(input.domain()); + mln::data::fill(output, false); + mln::data::paste(erosion(input || mln::cplx2d::is_edge, + mln::cplx2d::e2p()), + output); + return output; + } + + /// Erosion from edges to vertices (\f$\epsilon^\bullet\f$) on an + /// mln::image2d<T>-based cubical complex. + template <typename T> + inline + mln::image2d<T> + erosion_e2v(const mln::image2d<T>& input) + { + mln::image2d<T> output(input.domain()); + mln::data::fill(output, false); + mln::data::paste(erosion(input || mln::cplx2d::is_pixel, + mln::cplx2d::p2e()), + output); + return output; + } + + /// Dilation from vertices to edges (\f$\delta^\times\f$) on an + /// mln::image2d<T>-based cubical complex. + template <typename T> + inline + mln::image2d<T> + dilation_v2e(const mln::image2d<T>& input) + { + mln::image2d<T> output(input.domain()); + mln::data::fill(output, false); + mln::data::paste(dilation(input || mln::cplx2d::is_edge, + mln::cplx2d::e2p()), + output); + return output; + } + } /// Dilation from edges to vertices (\f$\delta^\bullet\f$). -- 1.6.4.2