[Olena-patches] proto-1.0 452: Update for opened and closed snakes.

https://svn/svn/oln/prototypes/proto-1.0/olena Index: ChangeLog from Nicolas Widynski &lt;nicolas.widynski(a)lrde.epita.fr&gt; Update for opened and closed snakes. * oln/appli/snakes/snakes.hh: Update for opened and closed snakes. snakes.hh | 58 ++++++++++++++++++++++++++++++++++++++++++++++------------ 1 file changed, 46 insertions(+), 12 deletions(-) Index: oln/appli/snakes/snakes.hh --- oln/appli/snakes/snakes.hh (revision 451) +++ oln/appli/snakes/snakes.hh (working copy) @@ -51,6 +51,7 @@ return sqr(x1 - x2) + sqr(y1 - y2); } + template <typename T> void verify_integrity_(const image2d<T>& grad, int &x1, @@ -206,6 +207,7 @@ x2 = p2.row() + dmax; y2 = p2.col(); } + verify_integrity_(grad, x1, x2, y1, y2); return draw_line_(point2d(x1, y1), point2d(x2, y2)); @@ -229,11 +231,15 @@ const std::vector<point2d>& v, unsigned int fen, float lambda, - unsigned int dmax) + unsigned int dmax, + unsigned int type) { std::vector<point2d>::const_iterator it = v.begin(); std::vector<point2d> res; + if (type) + res.push_back(v[0]); + for (; (it + 2) != v.end(); it++) { point2d p1 = *it; @@ -257,9 +263,13 @@ res.push_back(n_pt); } + if (type == 0) + { res.push_back(res[0]); res.push_back(res[1]); - + } + else + res.push_back(*(v.end() - 1)); if (lambda != 0) { @@ -272,6 +282,7 @@ std::vector<point2d>::iterator it3 = res.begin(); std::vector<point2d>::iterator p_s; point2d n_pt(0,0); + for (; (it3 + 2) != res.end(); it3++) { point2d p1 = *it3; @@ -282,7 +293,6 @@ std::vector<point2d>::const_iterator it2 = v_normal.begin(); float angle_ref = angle_force(p1, p2, p3); - float force_ref = grad[p2] - (180 - angle_ref) * lambda; for (; it2 != v_normal.end(); it2++) @@ -302,6 +312,8 @@ if (max > 0) { conv = false; + if (type == 0) + { if (p_s == (res.begin() + 1)) // 2nd { (*(res.end() - 1)).col() = n_pt.col(); @@ -313,6 +325,7 @@ (*(res.begin())).col() = n_pt.col(); (*(res.begin())).row() = n_pt.row(); } + } (*p_s).col() = n_pt.col(); (*p_s).row() = n_pt.row(); } @@ -322,8 +335,8 @@ return res; } - - std::vector<point2d> regen_snaxels(std::vector<point2d>& v) + std::vector<point2d> regen_snaxels(std::vector<point2d>& v, + int type) { std::vector<point2d> res; std::vector<point2d> tmp; @@ -338,15 +351,24 @@ } int nb_pts = v.size() * 2; - int cpt = 1; + int cpt = 0; for (it2 = tmp.begin(); it2 != tmp.end(); it2++, cpt++) if ((cpt % (tmp.size() / nb_pts)) == 0) res.push_back(*it2); + if (type == 0) + { + res.push_back(res[0]); + res.push_back(res[1]); + } + else + res.push_back(*(v.end() - 1)); + return res; } + template <typename T> void clean_ima(image2d<T>& ima) { @@ -367,25 +389,35 @@ template <typename T> std::vector<point2d> snakes_(const image2d<T>& input, + const std::vector<point2d>& v_init, unsigned int fen, unsigned int nb_gen, float lambda, - unsigned int dmax) + unsigned int dmax, + unsigned int type) { image2d<T> grad = morpho::gradient_morpho(input, win_c4p()); clean_ima(grad); std::vector<point2d> res; + std::vector<point2d>::const_iterator it = v_init.begin(); + for (it = v_init.begin(); it != v_init.end(); it++) + res.push_back(*it); - // build init points + 2 (close snake) + if (type == 0) + { + res.push_back(res[0]); + res.push_back(res[1]); + } int i = 0; + while (i < nb_gen) { - res = gen_snakes_(grad, res, fen, lambda, dmax); + res = gen_snakes_(grad, res, fen, lambda, dmax, type); i++; if (i < nb_gen) - res = regen_snaxels(res); + res = regen_snaxels(res, type); } return res; @@ -397,12 +429,14 @@ template <typename T> std::vector<point2d> snakes(const image2d<T>& input, + const std::vector<point2d>& v_init, unsigned int fen, unsigned int nb_gen, float lambda, - unsigned int dmax) + unsigned int dmax, + unsigned int type) // 0 : ferme, 1 : ouvert { - return impl::snakes_(input, fen, nb_gen, lambda, dmax); + return impl::snakes_(input, v_init, fen, nb_gen, lambda, dmax, type); } } // end of namespace oln::appli