https://svn.lrde.epita.fr/svn/oln/trunk/milena/sandbox Index: ChangeLog from Thierry Geraud &lt;thierry.geraud(a)lrde.epita.fr&gt; Split ismm2009 into routines and main. * laurent/ismm2009.cc: Copy to... * laurent/ismm2009.v0.cc: ...this new file (memorization). * laurent/ismm2009.cc: Copy routines to... * laurent/ismm2009.hh: ...this new file. * laurent/ismm2009.cc: Remove routines. ismm2009.cc | 379 +-------------------------------------------------------- ismm2009.hh | 275 +++-------------------------------------- ismm2009.v0.cc | 33 +--- 3 files changed, 35 insertions(+), 652 deletions(-) Index: laurent/ismm2009.cc --- laurent/ismm2009.cc (revision 3155) +++ laurent/ismm2009.cc (working copy) @@ -1,11 +1,4 @@ -#include <vector> -#include <algorithm> - -#include <mln/core/var.hh> -#include <mln/core/image/image2d.hh> -#include <mln/core/image/image_if.hh> -#include <mln/core/alias/neighb2d.hh> -#include <mln/make/double_neighb2d.hh> +#include "ismm2009.hh" #include <mln/value/int_u8.hh> #include <mln/value/label_8.hh> @@ -13,340 +6,11 @@ #include <mln/io/pgm/load.hh> #include <mln/util/ord_pair.hh> #include <mln/debug/println.hh> - -#include <mln/core/routine/extend.hh> #include <mln/core/routine/duplicate.hh> -#include <mln/data/fill.hh> -#include <mln/data/paste.hh> -#include <mln/labeling/regional_minima.hh> #include <mln/labeling/compute.hh> - #include <mln/accu/count.hh> -#include <mln/morpho/gradient.hh> -#include <mln/morpho/meyer_wst.hh> - - - -namespace mln -{ - - // Functions. - - inline - bool is_row_odd(const point2d& p) - { - return p.row() % 2; - } - - inline - bool is_edge(const point2d& p) - { - return p.row() % 2 + p.col() % 2 == 1; - } - - inline - bool is_pixel(const point2d& p) - { - return p.row() % 2 == 0 && p.col() % 2 == 0; - } - - inline - bool is_point(const point2d& p) - { - return p.row() % 2 && p.col() % 2; - } - - - // Neighborhoods. - - typedef neighb< win::multiple<window2d, bool(*)(const point2d&)> > dbl_neighb2d; - - const dbl_neighb2d& e2p() // Edge (1D face) to neighboring original pixels (2D faces). - { - static bool e2p_h[] = { 0, 1, 0, - 0, 0, 0, - 0, 1, 0 }; - static bool e2p_v[] = { 0, 0, 0, - 1, 0, 1, - 0, 0, 0 }; - static dbl_neighb2d nbh = make::double_neighb2d(is_row_odd, e2p_h, e2p_v); - return nbh; - } - - const dbl_neighb2d& e2e() // Edge to neighboring edges. - { - static 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 }; - static 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 }; - static dbl_neighb2d nbh = make::double_neighb2d(is_row_odd, e2e_h, e2e_v); - return nbh; - } - - - inline - point2d p1_from_e(const point2d& e) - { - return e + (is_row_odd(e) ? up : left); - } - - inline - point2d p2_from_e(const point2d& e) - { - return e + (is_row_odd(e) ? down : right); - } - - - // Transform to make room for edges. - - template <typename T> - image2d<T> - add_edges(const image2d<T>& input) - { - image2d<T> output(2 * input.nrows() - 1, - 2 * input.ncols() - 1); - data::fill(output, 0); // Useless but for display! - 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 I, typename N> - mln_concrete(I) - magnitude(const I& input, const N& nbh) - { - mln_concrete(I) 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(); - mln_value(I) v1 = input(n); - n.next(); - mln_value(I) v2 = input(n); - output(p) = v2 > v1 ? v2 - v1 : v1 - v2; - } - - return output; - } - - - template <typename I, typename N> - mln_ch_value(I, util::ord_pair<mln_value(I)>) - adjacency(const I& input, const N& nbh) - { - typedef mln_value(I) L; - typedef util::ord_pair<L> LL; - - mln_ch_value(I, LL) output; - initialize(output, input); - - mln_piter(I) p(input.domain()); - mln_niter(N) n(nbh, p); - for_all(p) - { - if (input(p) == 0) // Watershed edge. - { - L l1 = 0, l2 = 0; - for_all(n) - if (input.has(n) && input(n) != 0) - { - if (l1 == 0) // First label to be stored. - l1 = input(n); - else - if (input(n) != l1 && l2 == 0) // Second label to be stored. - l2 = input(n); - else - mln_invariant(input(n) == l1 || input(n) == l2); - } - mln_invariant(l1 != 0 && l2 != 0); - output(p) = LL(l1, l2); - } - else - { - L l = input(p); - output(p) = LL(l, l); - // Tests: - for_all(n) - if (input.has(n)) - mln_invariant(input(n) == 0 || input(n) == l); - } - } - - return output; - } - - - - - // Get the smallest edge out of a basin. - // - // Version with the watershed extended to all faces. - - template <typename W, typename N, typename G> - std::vector<mln_site(W)> // FIXME: Use p_array! - smallest_edges(const W& wst, unsigned nlabels, - const N& nbh, // edge (1D-face) -> pixels (2D-faces) - const G& g) - { - typedef mln_value(W) L; - std::vector<mln_site(W)> edge(nlabels + 1); - std::vector<L> g_min(nlabels + 1); - std::fill(g_min.begin(), g_min.end(), mln_max(mln_value(G))); - mln_piter(W) e(wst.domain()); - mln_niter(N) n(nbh, e); - for_all(e) - { - mln_invariant(wst(e) == 0); // Watershed line only. - n.start(); - L l1 = wst(n); - n.next(); - L l2 = wst(n); - if (g(e) < g_min[l1]) - { - g_min[l1] = g(e); - edge[l1] = e; - } - if (g(e) < g_min[l2]) - { - g_min[l2] = g(e); - edge[l2] = e; - } - } - return edge; - } - - - - // Get the smallest edge out of a basin. - // - // Version with the watershed on edges only (not extended to other faces). - // This is an ALTERNATE version (just to test that we get the same result - // as the "regular" version given above). - - template <typename W, typename N, typename G> - std::vector<mln_site(W)> - smallest_edges_alt(const W& wst, unsigned nlabels, - const N& nbh, // edge -> edges - const G& g) - { - typedef mln_value(W) L; - std::vector<mln_site(W)> edge(nlabels + 1); - std::vector<L> g_min(nlabels + 1); - std::fill(g_min.begin(), g_min.end(), mln_max(mln_value(G))); - mln_piter(W) e(wst.domain()); - mln_niter(N) n(nbh, e); - for_all(e) if (wst(e) == 0) // Watershed edge. - { - L l1 = 0, l2 = 0; - for_all(n) - if (wst.has(n) && wst(n) != 0) - { - if (l1 == 0) // First label. - l1 = wst(n); - else - if (wst(n) != l1 && l2 == 0) // Second label. - l2 = wst(n); - else - mln_invariant(wst(n) == l1 || wst(n) == l2); - } - mln_invariant(l1 != 0 && l2 != 0); - if (g(e) < g_min[l1]) - { - g_min[l1] = g(e); - edge[l1] = e; - } - if (g(e) < g_min[l2]) - { - g_min[l2] = g(e); - edge[l2] = e; - } - } - return edge; - } - - - - // Sort attributes. - - template <typename A, typename L> - std::vector< std::pair<A,L> > - sort_attributes(const util::array<A>& a, L n_basins) - { - typedef std::pair<A,L> pair_t; - std::vector<pair_t> v(n_basins.next()); - - v[0] = pair_t(mln_min(A), 0); // First elt, even after sorting. - - for (L l = 1; l <= n_basins; ++l) - v[l] = pair_t(a[l], l); - - std::sort(v.begin(), v.end()); - - return v; - } - - - // Find root. - - template <typename L> - inline - L find_root(std::vector<L>& par, L l) - { - if (par[l] == l) - return l; - else - return par[l] = find_root(par, par[l]); - } - - - - // Display. - - 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; - } - - -} // end of namespace mln - void usage(char* argv[]) @@ -369,59 +33,30 @@ image2d<int_u8> raw_f; io::pgm::load(raw_f, argv[1]); - debug::println("raw_f:", raw_f); image2d<int_u8> f_ = add_edges(raw_f); - debug::println("f_:", f_); mln_VAR(f, f_ | is_pixel); - debug::println("f:", f); + // debug::println("f:", f); mln_VAR(g, f_ | is_edge); - data::fill(g, magnitude(extend(f_ | is_edge, pw::value(f_)), - e2p())); - debug::println("g:", g); - - // surprise: - debug::println("g without the 'edge' predicate:", g.unmorph_()); - typedef label_8 L; // Type of labels. - - L n_regmins; - mln_VAR( regmin_g, - labeling::regional_minima(g, e2e(), n_regmins) ); - debug::println("regmin(g):", regmin_g); - L n_basins; mln_VAR( wst_g, - morpho::meyer_wst(g, e2e(), n_basins) ); - mln_invariant(n_basins == n_regmins); + f_to_wst_g(f, g, e2p(), e2e(), n_basins) ); + + // debug::println("g:", g); debug::println("wst(g):", wst_g); + // Just to see things. mln_VAR(adj, adjacency(wst_g, e2e())); debug::println("adjacency:", adj | (pw::value(wst_g) == pw::cst(0))); - /* // Délire! - { - box2d b = make::box2d(1,1, n_basins, n_basins); - point2d null(0, 0); - image2d<point2d> adj_edge(b); - data::fill(adj_edge, null); - - mln_piter_(adj_t) e(adj.domain()); - for_all(e) - if (adj(e).first() != adj(e).second()) - adj_edge.at_(adj(e).first(), adj(e).second()) = e; - - debug::println(adj_edge); - } - */ - image2d<L> wst_g_full = wst_g.unmorph_(); { @@ -445,7 +80,7 @@ - // Get the smallest esge out of every basin. + // Get the smallest edge out of every basin. std::vector<point2d> edge = smallest_edges(extend(wst_g | is_line, wst_g_full), n_basins, e2p(), g); Index: laurent/ismm2009.v0.cc --- laurent/ismm2009.v0.cc (revision 3155) +++ laurent/ismm2009.v0.cc (working copy) @@ -122,29 +122,6 @@ template <typename I, typename N> - mln_concrete(I) - magnitude(const I& input, const N& nbh) - { - mln_concrete(I) 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(); - mln_value(I) v1 = input(n); - n.next(); - mln_value(I) v2 = input(n); - output(p) = v2 > v1 ? v2 - v1 : v1 - v2; - } - - return output; - } - - - template <typename I, typename N> mln_ch_value(I, util::ord_pair<mln_value(I)>) adjacency(const I& input, const N& nbh) { @@ -378,12 +355,16 @@ debug::println("f:", f); mln_VAR(g, f_ | is_edge); - data::fill(g, magnitude(extend(f_ | is_edge, pw::value(f_)), - e2p())); + + data::paste(morpho::gradient(extend(g, f), + e2p().win()), + g); debug::println("g:", g); // surprise: debug::println("g without the 'edge' predicate:", g.unmorph_()); + std::cout << "great: we actually encode both f and g in the same image" + << "so we do save memory!" << std::endl; typedef label_8 L; // Type of labels. @@ -445,7 +426,7 @@ - // Get the smallest esge out of every basin. + // Get the smallest edge out of every basin. std::vector<point2d> edge = smallest_edges(extend(wst_g | is_line, wst_g_full), n_basins, e2p(), g); Index: laurent/ismm2009.hh --- laurent/ismm2009.hh (revision 3155) +++ laurent/ismm2009.hh (working copy) @@ -7,22 +7,13 @@ #include <mln/core/alias/neighb2d.hh> #include <mln/make/double_neighb2d.hh> -#include <mln/value/int_u8.hh> -#include <mln/value/label_8.hh> - -#include <mln/io/pgm/load.hh> #include <mln/util/ord_pair.hh> -#include <mln/debug/println.hh> #include <mln/core/routine/extend.hh> -#include <mln/core/routine/duplicate.hh> #include <mln/data/fill.hh> #include <mln/data/paste.hh> #include <mln/labeling/regional_minima.hh> -#include <mln/labeling/compute.hh> - -#include <mln/accu/count.hh> #include <mln/morpho/gradient.hh> #include <mln/morpho/meyer_wst.hh> @@ -122,29 +113,6 @@ template <typename I, typename N> - mln_concrete(I) - magnitude(const I& input, const N& nbh) - { - mln_concrete(I) 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(); - mln_value(I) v1 = input(n); - n.next(); - mln_value(I) v2 = input(n); - output(p) = v2 > v1 ? v2 - v1 : v1 - v2; - } - - return output; - } - - - template <typename I, typename N> mln_ch_value(I, util::ord_pair<mln_value(I)>) adjacency(const I& input, const N& nbh) { @@ -345,238 +313,37 @@ } -} // end of namespace mln + template < typename F, + typename G, + typename N_e2p, + typename N_e2e, + typename L > + mln_ch_value(G, L) + f_to_wst_g(F& f, // On pixels. + G& g, // On edges. + const N_e2p& e2p, + const N_e2e& e2e, + L& n_basins) + { + data::paste(morpho::gradient(extend(g, f), + e2p.win()), + g); -void usage(char* argv[]) -{ - std::cerr << "usage: " << argv[0] << " input.pgm" << std::endl; - std::cerr << "Laurent ISMM 2009 scheme." << std::endl; - abort(); -} - - + mln_VAR( wst_g, + morpho::meyer_wst(g, e2e, n_basins) ); -int main(int argc, char* argv[]) + // Test the consistency with regional minima. { - using namespace mln; - using value::int_u8; - using value::label_8; - - if (argc != 2) - usage(argv); - - image2d<int_u8> raw_f; - io::pgm::load(raw_f, argv[1]); - debug::println("raw_f:", raw_f); - - image2d<int_u8> f_ = add_edges(raw_f); - debug::println("f_:", f_); - - mln_VAR(f, f_ | is_pixel); - debug::println("f:", f); - - mln_VAR(g, f_ | is_edge); - data::fill(g, magnitude(extend(f_ | is_edge, pw::value(f_)), - e2p())); - debug::println("g:", g); - - // surprise: - debug::println("g without the 'edge' predicate:", g.unmorph_()); - - - typedef label_8 L; // Type of labels. - - L n_regmins; mln_VAR( regmin_g, - labeling::regional_minima(g, e2e(), n_regmins) ); - debug::println("regmin(g):", regmin_g); - - L n_basins; - mln_VAR( wst_g, - morpho::meyer_wst(g, e2e(), n_basins) ); + labeling::regional_minima(g, e2e, n_regmins) ); mln_invariant(n_basins == n_regmins); - debug::println("wst(g):", wst_g); - - - // Just to see things. - mln_VAR(adj, adjacency(wst_g, e2e())); - debug::println("adjacency:", adj | (pw::value(wst_g) == pw::cst(0))); - - - /* // Délire! - { - box2d b = make::box2d(1,1, n_basins, n_basins); - point2d null(0, 0); - image2d<point2d> adj_edge(b); - data::fill(adj_edge, null); - - mln_piter_(adj_t) e(adj.domain()); - for_all(e) - if (adj(e).first() != adj(e).second()) - adj_edge.at_(adj(e).first(), adj(e).second()) = e; - - debug::println(adj_edge); } - */ - - image2d<L> wst_g_full = wst_g.unmorph_(); - { - // edges (1D-faces) -> pixels (2D-faces) - mln_VAR(w_pixels, wst_g_full | is_pixel); - data::paste(morpho::dilation(extend(w_pixels, pw::value(wst_g_full)), - c4().win()), - wst_g_full); - // edges (1D-faces) -> points (0D-faces) - mln_VAR(w_points, wst_g_full | is_point); - data::paste(morpho::erosion(extend(w_points, pw::value(wst_g_full)), - c4().win()), - wst_g_full); + return wst_g; } - debug::println("wst(g) fully valuated:", wst_g_full); - - - // Depict the watershed line. - mln_VAR(is_line, pw::value(wst_g_full) == pw::cst(0)); - debug::println("wst(g) line:", wst_g | is_line); - - - - // Get the smallest esge out of every basin. - - std::vector<point2d> edge = smallest_edges(extend(wst_g | is_line, wst_g_full), - n_basins, e2p(), g); - for (L l = 1; l <= n_basins; ++l) - std::cout << int(l) << ": " << edge[l] << std::endl; -// { -// // Test the result with an alternate code. -// std::vector<point2d> edge_alt = smallest_edges_alt(wst_g, n_basins, e2e(), g); -// for (L l = 1; l <= n_basins; ++l) -// mln_invariant(edge_alt[l] == edge[l]); -// } - - - - // Compute an attribute per region. - - typedef unsigned A; - util::array<A> a = labeling::compute(accu::meta::count(), - g, - wst_g, - n_basins); - - typedef std::pair<A,L> pair_t; - std::vector<pair_t> v = sort_attributes(a, n_basins); // Sort regions. - - - std::cout << "attributes = "; - for (unsigned i = 1; i <= n_basins; ++i) - std::cout << v[i].first // Attribute (increasing). - << ':' - << v[i].second // Region label. - << " - "; - std::cout << std::endl; - - - std::vector<L> lpar(n_basins.next()); - for (L l = 1; l <= n_basins; ++l) - lpar[l] = l; // Make-set. - - - util::array<A> a_merged = a; - for (unsigned i = 1; i <= n_basins; ++i) - { - L l = v[i].second, // Region label. - lr = find_root(lpar, l); - - point2d e = edge[l]; // FIXME: Use the heap! - - mln_invariant(wst_g_full(p1_from_e(e)) == l || - wst_g_full(p2_from_e(e)) == l); - L l2 = ( wst_g_full(p1_from_e(e)) == l ? - wst_g_full(p2_from_e(e)) : - wst_g_full(p1_from_e(e)) ), - l2r = find_root(lpar, l2); - - if (lr == l2r) - continue; // Already merged. - if (l2r < lr) - std::swap(lr, l2r); - mln_invariant(l2r > lr); - lpar[lr] = l2r; - a_merged[l2r] += lr; // FIXME: We want accumulators here! - } - - for (unsigned i = 1; i <= n_basins; ++i) - { - L l = v[i].second; - std::cout << l << " -> " << lpar[l] << std::endl; - } - - -} // end of main - - - - -/* - - -for (i=0; i<V; i++) // Initialiser les heaps de fibonacci -{ - fh_setcmp(G->hp[i], cmp); // Chaque region a une heap de ses edges -} - -forall edges z that separates two regions v and w -{ - fh_insert(G->hp[v], (void *)(z)); // Ajouter les edges dans les heaps - fh_insert(G->hp[w], (void *)(z)); -} - -UFinit(G->V); // Initialiser l'union-find - -// Parcourir les regions par attribut croissant -for (j=0; j<V-1; j++) -{ - i = find(j); - - do - { // trouver l'edge minimum qui sorte de la region - e = fh_extractmin(G->hp[i]); - } - while ((UFfind(e->v, e->w)) && (e !=NULL)); - - if (e != NULL) - { // Normalement, e != NULL, sinon c'est un BIG pb!!! - int ui, uj, uk; - ui = find(e->v); - uj = find(e->w); - uk = UFunion(e->v,e->w); // Merger les regions - if (uk == ui) - { // et merger les edges - G->hp[ui] = fh_union(G->hp[ui], G->hp[uj]); - } - else - { - G->hp[uj] = fh_union(G->hp[uj], G->hp[ui]); - } - mst[k] = *e; // Garder l'arete - SaliencyWeight[k] = attribut[ui];// Poids dans la nouvelle hierarchie - OldWeight[k] = e->weight; // Poids dans l'ancienne hierarchie (inutile) - k++; - } - - // Calcul de la sortie - Pour toutes les edges separantes z=(x,y) - { - S[z] = max {SaliencyWeight[k] | sur le chemin reliant x a y dans mst} - } -} - - - */ +} // end of namespace mln