[Olena-patches] proto-1.0 484: Update Watersnake for multi segmentation.

https://svn/svn/oln/prototypes/proto-1.0/olena Index: ChangeLog from Nicolas Widynski &lt;nicolas.widynski(a)lrde.epita.fr&gt; Update Watersnake for multi segmentation. * oln/morpho/watersnakes.hh: Update for multi segmentation. watersnakes.hh | 44 +++++++++++++++++++++++++++----------------- 1 file changed, 27 insertions(+), 17 deletions(-) Index: oln/morpho/watersnakes.hh --- oln/morpho/watersnakes.hh (revision 483) +++ oln/morpho/watersnakes.hh (working copy) @@ -29,6 +29,7 @@ # define OLENA_MORPHO_WATERSNAKES_HH # include <string> +# include <map> # include <oln/basics.hh> # include <oln/morpho/erosion.hh> @@ -409,7 +410,7 @@ } template<typename T, typename T2> - std::vector<point2d> + std::vector<std::vector<point2d> > watershed_line(const image2d<T>& input, const image2d<T>& orig, const image2d<T2>& marqueur, @@ -417,12 +418,14 @@ int b, version v) { - image2d<int> final(input.size()); image2d<int> label; image2d<T2> mark(input.size()); oln_iter_type(image2d<T>) p(input); image2d<bool> is_wshed_line(input.size()); - std::vector<point2d> res; + std::vector<point2d> tmp; + std::vector<std::vector<point2d> > res; + std::map<std::pair<int, int>, int> num_wshed; + int cpt = 0; unsigned nb_compo = 0; for_all(p) @@ -432,7 +435,6 @@ propagate_minima_(input, mark, ng, p); image2d<T> recon; - if (v == NORMAL) recon = reconstruction_by_erosion(input, mark); else @@ -441,10 +443,9 @@ op_type op(marqueur, input, ng); recon = op.output; } - image2d<float> LS = lower_slope(recon, ng); + image2d<float> LS = lower_slope(recon, ng); label = init_watershed_(recon, mark, ng, nb_compo); - image2d<float*> topo = topographic_distance(recon, LS, mark, label, ng, nb_compo); for_all(p) @@ -463,21 +464,30 @@ while (snake_iteration(label, topo, b)) ; - level::fill(final, 0); for_all(p) { oln_neighb_type(window2d) q(win_c4p(), p); for_all (q) if (input.hold(q)) - if (label[p] != label[q] and final[q] != WSHED) - final[p] = WSHED; - if (final[p] == 0) - final[p] = orig[p]; + if (label[p] != label[q]) + { + int p1 = std::min(label[p], label[q]); + int p2 = std::max(label[p], label[q]); + if (num_wshed.find(std::pair<int, int>(p1, p2)) == num_wshed.end()) + { + num_wshed[std::pair<int, int>(p1, p2)] = cpt++; + std::vector<point2d> tmp; + tmp.push_back(p); + res.push_back(tmp); + } + else + { + if (res[(*(num_wshed.find(std::pair<int, int>(p1, p2)))).second].back() != p) + if (label[p] == p1) + res[(*(num_wshed.find(std::pair<int, int>(p1, p2)))).second].push_back(p); + } + } } - - for_all(p) - if (final[p] == WSHED) - res.push_back(p); return res; } @@ -485,7 +495,7 @@ template<typename T, typename T2> - std::vector<point2d> + std::vector<std::vector<point2d> > watersnakes_(const image2d<T>& input, const image2d<T2>& marqueur, const window2d& ng, @@ -503,7 +513,7 @@ template<typename T, typename T2> - std::vector<point2d> + std::vector<std::vector<point2d> > watersnakes(const image2d<T>& input, const image2d<T2>& marqueur, const window2d& ng,