[Olena-patches] 3640: Add clean_lines routine.

* icdar/2009/hsc/clean_lines.hh: new routine. * icdar/2009/hsc/input_lines_to_lines.cc: use this new routine. --- milena/sandbox/ChangeLog | 7 ++ milena/sandbox/icdar/2009/hsc/clean_lines.hh | 72 ++++++++++++++++++++ .../sandbox/icdar/2009/hsc/input_lines_to_lines.cc | 23 +------ 3 files changed, 81 insertions(+), 21 deletions(-) create mode 100644 milena/sandbox/icdar/2009/hsc/clean_lines.hh diff --git a/milena/sandbox/ChangeLog b/milena/sandbox/ChangeLog index 681b6bf..2d8698f 100644 --- a/milena/sandbox/ChangeLog +++ b/milena/sandbox/ChangeLog @@ -1,3 +1,10 @@ +2009-04-08 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + + Add clean_lines routine. + + * icdar/2009/hsc/clean_lines.hh: new routine. + * icdar/2009/hsc/input_lines_to_lines.cc: use this new routine. + 2009-04-07 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; Add icdar2ppm. diff --git a/milena/sandbox/icdar/2009/hsc/clean_lines.hh b/milena/sandbox/icdar/2009/hsc/clean_lines.hh new file mode 100644 index 0000000..956c150 --- /dev/null +++ b/milena/sandbox/icdar/2009/hsc/clean_lines.hh @@ -0,0 +1,72 @@ +#ifndef CLEAN_LINES_HH +# define CLEAN_LINES_HH + +#include <mln/core/image/image2d.hh> +#include <mln/core/alias/neighb2d.hh> +#include <mln/labeling/background.hh> +#include <mln/value/int_u8.hh> +#include <mln/value/label_8.hh> +#include <mln/value/label_16.hh> +#include <mln/io/pbm/load.hh> +#include <mln/io/pgm/all.hh> +#include <mln/labeling/compute.hh> +#include <mln/pw/all.hh> +#include <mln/core/image/image_if.hh> +#include <mln/data/fill.hh> +#include "label_maj.hh" + + +namespace mln +{ + + template <typename I, typename L> + mln_concrete(L) + clean_lines(const Image<I>& input, const Image<L>& lines_, + float maj_threshold); + + +# ifndef MLN_INCLUDE_ONLY + + template <typename I, typename L> + mln_concrete(L) + clean_lines(const Image<I>& input, const Image<L>& lines_, + float maj_threshold) + { + trace::entering("clean_lines"); + + const L& lines = exact(lines_); + mln_precondition(lines.is_valid()); + typedef value::label_16 LV; + + LV nlabels; + mln_ch_value(L,LV) lbl = labeling::background(input, c8(), nlabels); + util::array<box<mln_site(L)> > bboxes = labeling::compute(accu::meta::bbox(), lbl, nlabels); + + /// Compute the most represented label for each component. + accu::label_maj<LV, mln_value(L)> accu(nlabels.next()); + mln_piter(image2d<mln_value(L)>) p(lbl.domain()); + for_all(p) + if (lines(p) != 0u) + accu.take(lbl(p), lines(p)); + + mln_concrete(L) output = duplicate(lines); + + // Rebuild components. + util::array<util::couple<mln_value(L), float> > res = accu.to_result(); + for (unsigned i = 1; i < res.nelements(); ++i) + if (res[i].second() >= maj_threshold) + data::fill(((output | bboxes[i]).rw() + | (pw::value(lbl) != pw::cst(literal::zero))).rw(), + res[i].first()); +// else +// std::cout << res[i].first() << " - " << res[i].second() << std::endl; + + trace::exiting("clean_lines"); + return output; + } + +# endif // ! MLN_INCLUDE_ONLY + +} // end of namespace mln + +#endif // CLEAN_LINES_HH diff --git a/milena/sandbox/icdar/2009/hsc/input_lines_to_lines.cc b/milena/sandbox/icdar/2009/hsc/input_lines_to_lines.cc index 56aafab..18f7d3a 100644 --- a/milena/sandbox/icdar/2009/hsc/input_lines_to_lines.cc +++ b/milena/sandbox/icdar/2009/hsc/input_lines_to_lines.cc @@ -11,6 +11,7 @@ #include <mln/core/image/image_if.hh> #include <mln/data/fill.hh> #include "label_maj.hh" +#include "clean_lines.hh" void usage(char* argv[]) { @@ -40,26 +41,6 @@ int main(int argc, char *argv[]) image2d<int_u8> lines; io::pgm::load(lines, argv[2]); - label_16 nlabels; - image2d<label_16> lbl = labeling::background(input, c8(), nlabels); - util::array<box2d> bboxes = labeling::compute(accu::meta::bbox(), lbl, nlabels); - - /// Compute the most represented label for each component. - accu::label_maj<label_16, int_u8> accu(nlabels.next()); - mln_piter_(image2d<int_u8>) p(lbl.domain()); - for_all(p) - if (lines(p) != 0u) - accu.take(lbl(p), lines(p)); - - - // Rebuild components. - util::array<util::couple<int_u8, float> > res = accu.to_result(); - for (unsigned i = 1; i < res.nelements(); ++i) - if (res[i].second() >= 0.70f) - data::fill(((lines | bboxes[i]).rw() | (pw::value(lbl) != 0u)).rw(), res[i].first()); - else - std::cout << res[i].first() << " - " << res[i].second() << std::endl; - // Save result. - io::pgm::save(lines, argv[3]); + io::pgm::save(clean_lines(input, lines, 0.7f), argv[3]); } -- 1.5.6.5