[Olena-patches] milena r1662: Fix bug in extract_character

URL: https://svn.lrde.epita.fr/svn/oln/trunk/milena ChangeLog: 2008-01-15 Guillaume Duhamel &lt;guillaume.duhamel(a)lrde.epita.fr&gt; Fix bug in extract_character. * sandbox/nivault/extract_character.cc: Fix. --- extract_character.cc | 106 +++++++++++++++++++++++++-------------------------- 1 file changed, 52 insertions(+), 54 deletions(-) Index: trunk/milena/sandbox/nivault/extract_character.cc =================================================================== --- trunk/milena/sandbox/nivault/extract_character.cc (revision 1661) +++ trunk/milena/sandbox/nivault/extract_character.cc (revision 1662) @@ -154,22 +154,21 @@ point2d start = text_image.domain().pmin (); point2d end = text_image.domain().pmax (); + int limits = 50; - unsigned limits = 50; - - for (unsigned r = start[1]; r < end[1]; ++r) + for (int r = start[0]; r < end[0]; ++r) { - for (unsigned c = start[0]; c < end[0]; ++c) + for (int c = start[1]; c < end[1]; ++c) { bool ok = false; - unsigned i = 0; + int i = 0; accu::bbox<point2d> accu; { bool okk = true; while (okk) { okk = false; - for (i = c; i < end[0] && i < c + limits; ++i) + for (i = c; i < end[1] && i < c + limits; ++i) { unsigned value = image(point2d(r, i)); if (value != 0) @@ -333,54 +332,53 @@ extract_lines(text_image, output, vec_bbox); -// /// Generation of the graph from text image. -// I_LABEL zi_image = geom::seeds2tiling(text_image, c4 ()); -// mesh_p<point2d> m = make::voronoi(zi_image, text_image, c4()); -// I_LABEL gr_image (label_image.domain ()); -// I_LABEL gr_image2 (label_image.domain ()); -// draw::mesh(gr_image, m, 255, 128); -// draw::mesh(gr_image2, m, 255, 0); - - -// /// Dilation of node of the graph. -// win::disk2d win (30); -// I_LABEL pr = morpho::dilation(gr_image2, win); -// I bool_ima (label_image.domain ()); -// level::paste(pr, bool_ima); - -// /// Labeling the dilated image. -// unsigned nb_dilated_node_labels; -// I_LABEL label_image2 = labeling::blobs(bool_ima, c8(), nb_dilated_node_labels); -// std::cout << "nb_dilated_node_labels = " << nb_dilated_node_labels << std::endl; -// std::vector< accu::bbox <point2d> > vec_bbox2 (nb_dilated_node_labels + 1); - -// /// Extract area of text. -// mln_piter_(I_LABEL) pl (label_image.domain ()); -// for_all (pl) -// vec_bbox2[label_image2(pl)].take (pl); - - -// /// Draw the bounding box of area of text in output. -// for (unsigned i = 0; i <= nb_dilated_node_labels; ++i) -// draw_bbox(output, vec_bbox2[i].to_result(), literal::red); - -// image2d<int_u8> out (label_image.domain ()); - -// /// Save the influence area of the node of the graphe (seed2tiling result). -// level::stretch (zi_image, out); -// io::pgm::save(out, path_output + ".text_area.approx.pgm"); -// std::cout << path_output + ".text_area.approx.pgm" << " generated" << std::endl; - -// /// Save the graph of the text. -// level::stretch (gr_image, out); -// io::pgm::save(out, path_output + ".text_graph.pgm"); -// std::cout << path_output + ".text_graph.pgm" << " generated" << std::endl; - -// /// Save the graph of the text. -// level::stretch (text_image, out); -// io::pgm::save(out, path_output + ".text.pgm"); -// std::cout << path_output + ".text.pgm" << " generated" << std::endl; - + /// Generation of the graph from text image. + I_LABEL zi_image = geom::seeds2tiling(text_image, c4 ()); + mesh_p<point2d> m = make::voronoi(zi_image, text_image, c4()); + I_LABEL gr_image (label_image.domain ()); + I_LABEL gr_image2 (label_image.domain ()); + draw::mesh(gr_image, m, 255, 128); + draw::mesh(gr_image2, m, 255, 0); + + + /// Dilation of node of the graph. + win::disk2d win (30); + I_LABEL pr = morpho::dilation(gr_image2, win); + I bool_ima (label_image.domain ()); + level::paste(pr, bool_ima); + + /// Labeling the dilated image. + unsigned nb_dilated_node_labels; + I_LABEL label_image2 = labeling::blobs(bool_ima, c8(), nb_dilated_node_labels); + std::cout << "nb_dilated_node_labels = " << nb_dilated_node_labels << std::endl; + std::vector< accu::bbox <point2d> > vec_bbox2 (nb_dilated_node_labels + 1); + + /// Extract area of text. + mln_piter_(I_LABEL) pl (label_image.domain ()); + for_all (pl) + vec_bbox2[label_image2(pl)].take (pl); + + + /// Draw the bounding box of area of text in output. + for (unsigned i = 0; i <= nb_dilated_node_labels; ++i) + draw_bbox(output, vec_bbox2[i].to_result(), literal::red); + + image2d<int_u8> out (label_image.domain ()); + + /// Save the influence area of the node of the graphe (seed2tiling result). + level::stretch (zi_image, out); + io::pgm::save(out, path_output + ".text_area.approx.pgm"); + std::cout << path_output + ".text_area.approx.pgm" << " generated" << std::endl; + + /// Save the graph of the text. + level::stretch (gr_image, out); + io::pgm::save(out, path_output + ".text_graph.pgm"); + std::cout << path_output + ".text_graph.pgm" << " generated" << std::endl; + + /// Save the graph of the text. + level::stretch (text_image, out); + io::pgm::save(out, path_output + ".text.pgm"); + std::cout << path_output + ".text.pgm" << " generated" << std::endl; /// Save the output image (input image + bounding box text in red). io::ppm::save(output, path_output + ".ppm");