--- scribo/ChangeLog | 5 ++ scribo/src/text_in_photo_fast.cc | 79 ++++++++++++++++++++++++++++--------- 2 files changed, 65 insertions(+), 19 deletions(-)

diff --git a/scribo/ChangeLog b/scribo/ChangeLog index 34a258f..ffd4a39 100644 --- a/scribo/ChangeLog +++ b/scribo/ChangeLog @@ -1,5 +1,10 @@ 2010-04-13 Guillaume Lazzara z@lrde.epita.fr

+ * scribo/src/text_in_photo_fast.cc: Group routine parameters in a + global structure. + +2010-04-13 Guillaume Lazzara z@lrde.epita.fr + Add new Sauvola overloads and update examples.

* scribo/binarization/internal/first_pass_functor.hh, diff --git a/scribo/src/text_in_photo_fast.cc b/scribo/src/text_in_photo_fast.cc index 68b2014..d61cc6f 100644 --- a/scribo/src/text_in_photo_fast.cc +++ b/scribo/src/text_in_photo_fast.cc @@ -57,8 +57,6 @@

#include <mln/subsampling/antialiased.hh>

-#include <mln/subsampling/antialiased_rgb.hh> - #include <scribo/draw/bounding_boxes.hh> #include <scribo/draw/groups_bboxes.hh>

@@ -112,6 +110,7 @@ const char *args_desc[][2] = { { "input.ppm", "A color image." }, + { "ouput.ppm", "A color image where the text is highlighted." }, { "debug_output_dir", "Directory were debug images will be saved" }, { "lambda", "Lambda value used for foreground extraction" }, {0, 0} @@ -121,6 +120,38 @@ const char *args_desc[][2] = namespace mln {

+ + struct config + { + config() + { + sauvola_s = 3u; + sauvola_min_w = 51u; + + // Group Filtering + bbox_h_ratio = 1.50f; + bbox_overlap = 0.80f; + small_groups = 3; + v_thickness = 8; + regroup_dmax = 30; + group_min_holes = 3; + } + + + // Sauvola ms + unsigned sauvola_s; + unsigned sauvola_min_w; + + // Group Filtering + float bbox_h_ratio; + float bbox_overlap; + unsigned small_groups; + unsigned v_thickness; + unsigned regroup_dmax; + unsigned group_min_holes; + }; + + struct mask_non_text : Function_v2v<mask_non_text> { typedef value::rgb8 result; @@ -239,10 +270,9 @@ int main(int argc, char* argv[]) if (argc < 3 || argc > 10) return scribo::debug::usage(argv, "Find text in a photo.\n\n\ -Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1", +Common usage: ./text_in_photo_fast input.ppm output.ppm 1 1 1 1 1", "input.ppm output.ppm <bg/fg enabled> <sauvola_ms enabled> <Bg comp filter enabled> <small group filter enabled> <thin group filter enabled> [debug_output_dir] [lambda]", - args_desc, - "A color image where the text is highlighted."); + args_desc);

std::string out_base_dir; bool debug = false; @@ -255,6 +285,8 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1",

trace::entering("main");

+ config conf; + image2dvalue::rgb8 input_rgb; io::magick::load(input_rgb, argv[1]);

@@ -264,7 +296,7 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1",

std::cout << "Original domain: " << input_rgb.domain() << std::endl;

- input_rgb = mln::subsampling::impl::antialiased_2d_rgb(input_rgb, factor); + input_rgb = mln::subsampling::antialiased(input_rgb, factor);

std::cout << "Resized domain: " << input_rgb.domain() << std::endl;

@@ -318,11 +350,11 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1", unsigned w = std::min(intensity_ima.nrows() / 3, intensity_ima.ncols() / 3); if (! w % 2) ++w; - w = std::min(w, 51u); + w = std::min(w, conf.sauvola_min_w); if (argc > 4 && atoi(argv[4]) != 0) { std::cout << "** Using sauvola_ms with w_1 = " << w << std::endl; - input = scribo::binarization::sauvola_ms(intensity_ima, w, 3, 67); + input = scribo::binarization::sauvola_ms(intensity_ima, w, conf.sauvola_s); } else { @@ -420,7 +452,7 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1", timer_.restart(); object_links<L> hratio_filtered_links = filter::object_links_bbox_h_ratio(merged_links, - 1.50f); + conf.bbox_h_ratio);

@@ -431,7 +463,8 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1", image2dvalue::rgb8 hratio_decision_image = scribo::debug::decision_image(input, merged_links, - hratio_filtered_links); + hratio_filtered_links, + anchor::MassCenter); io::ppm::save(hratio_decision_image, scribo::make::debug_filename("hratio_links_decision_image.ppm")); } @@ -442,7 +475,8 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1",

//Remove links if bboxes overlap too much. object_links<L> overlap_filtered_links - = filter::object_links_bbox_overlap(hratio_filtered_links, 0.80f); + = filter::object_links_bbox_overlap(hratio_filtered_links, + conf.bbox_overlap);

@@ -453,7 +487,8 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1", image2dvalue::rgb8 overlap_decision_image = scribo::debug::decision_image(input, hratio_filtered_links, - overlap_filtered_links); + overlap_filtered_links, + anchor::MassCenter); io::ppm::save(overlap_decision_image, scribo::make::debug_filename("overlap_links_decision_image.ppm")); } @@ -514,7 +549,8 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1", if (argc > 6 && atoi(argv[6]) != 0) { std::cout << "** Using group too small" << std::endl; - filtered_small_groups = filter::object_groups_small(groups, 3); + filtered_small_groups = filter::object_groups_small(groups, + conf.small_groups); } else filtered_small_groups = groups; @@ -532,7 +568,7 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1",

scribo::draw::groups_bboxes(decision_image, groups, literal::red); scribo::draw::groups_bboxes(decision_image, filtered_small_groups, - literal::blue); + literal::green);

io::ppm::save(decision_image, @@ -549,7 +585,8 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1", { std::cout << "** Using group too thin" << std::endl; filtered_thin_groups - = filter::object_groups_v_thickness(filtered_small_groups, 8); + = filter::object_groups_v_thickness(filtered_small_groups, + conf.v_thickness); } else filtered_thin_groups = filtered_small_groups; @@ -565,7 +602,7 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1", scribo::draw::groups_bboxes(decision_image, filtered_small_groups, literal::red); scribo::draw::groups_bboxes(decision_image, filtered_thin_groups, - literal::blue); + literal::green);

io::ppm::save(decision_image, scribo::make::debug_filename("thin_groups_filter.ppm")); @@ -578,7 +615,8 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1", g_timer.restart();

// Grouping groups together if possible. - groups = primitive::regroup::from_single_left_link(filtered_thin_groups, 30); + groups = primitive::regroup::from_single_left_link(filtered_thin_groups, + conf.regroup_dmax);

// component_set<L> @@ -607,7 +645,8 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1", { std::cout << "** Using objects_with_two_holes" << std::endl;

- groups = scribo::filter::object_groups_with_holes(groups, 5); + groups = scribo::filter::object_groups_with_holes(groups, + conf.group_min_holes);

t_ = g_timer; std::cout << "Objects_with_holes " << t_ << std::endl; @@ -626,7 +665,9 @@ Common usage: ./ppm_text_in_photo input.ppm output.ppm 1 1 1 1 1", { decision_image = data::convert(value::rgb8(), input);

- scribo::draw::groups_bboxes(decision_image, groups, literal::blue); + scribo::draw::groups_bboxes(decision_image, filtered_thin_groups, + literal::red); + scribo::draw::groups_bboxes(decision_image, groups, literal::green);

io::ppm::save(decision_image, scribo::make::debug_filename("group_with_holes_filter.ppm")); }