Add a small tool to map text components to lines.
* icdar/2009/hsc/input_lines_to_lines.cc: new.
---
milena/sandbox/ChangeLog | 6 ++
.../sandbox/icdar/2009/hsc/input_lines_to_lines.cc | 63 ++++++++++++++++++++
2 files changed, 69 insertions(+), 0 deletions(-)
create mode 100644 milena/sandbox/icdar/2009/hsc/input_lines_to_lines.cc
diff --git a/milena/sandbox/ChangeLog b/milena/sandbox/ChangeLog
index f1350d6..f6e6e15 100644
--- a/milena/sandbox/ChangeLog
+++ b/milena/sandbox/ChangeLog
@@ -1,3 +1,9 @@
+2009-04-06 Guillaume Lazzara <z(a)lrde.epita.fr>
+
+ Add a small tool to map text components to lines.
+
+ * icdar/2009/hsc/input_lines_to_lines.cc: new.
+
2009-04-06 Edwin Carlinet <carlinet(a)lrde.epita.fr>
Add function to perform component tree computation until.
diff --git a/milena/sandbox/icdar/2009/hsc/input_lines_to_lines.cc
b/milena/sandbox/icdar/2009/hsc/input_lines_to_lines.cc
new file mode 100644
index 0000000..eb46b36
--- /dev/null
+++ b/milena/sandbox/icdar/2009/hsc/input_lines_to_lines.cc
@@ -0,0 +1,63 @@
+#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/accu/lbl_maj.hh>
+#include <mln/labeling/compute.hh>
+#include <mln/pw/all.hh>
+#include <mln/core/image/image_if.hh>
+#include <mln/data/fill.hh>
+
+void usage(char* argv[])
+{
+ std::cerr << "usage: " << argv[0] << " input.pbm
lines.pgm output.pgm" << std::endl
+ << " HSC @ ICDAR'2009" << std::endl
+ << " Rebuild splitted components from a label image." <<
std::endl;
+ << " input.pbm: input 2D binary image (text is black; background is
white)" << std::endl
+ << " lines.pgm: output image where line components are labeled
(int_u8)" << std::endl
+ << " 0 is the background label." << std::endl
+ << " output.pgm output image where line components are labeled
(int_u8)" << std::endl
+ << " 0 is the background label." << std::endl;
+ std::abort();
+}
+
+
+int main(int argc, char *argv[])
+{
+ using namespace mln;
+ using namespace mln::value;
+
+ if (argc < 4)
+ usage(argv);
+
+ image2d<bool> input;
+ io::pbm::load(input, argv[1]);
+
+ 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::lbl_maj<label_16, int_u8> accu(nlabels.next());
+ mln_piter_(image2d<int_u8>) p(lines.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() >= 0.9f)
+ data::fill(((lines | bboxes[i]).rw() | (pw::value(lbl) != 0u)).rw(),
res[i].first());
+
+ // Save result.
+ io::pgm::save(lines, argv[3]);
+}
--
1.5.6.5
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