[Olena-patches] last-svn-commit-894-g3a15c02 scribo/primitive/extract/lines_h_thick_and_thin.hh: Improve result quality.

--- scribo/ChangeLog | 5 +++++ .../primitive/extract/lines_h_thick_and_thin.hh | 16 ++++++++++++---- 2 files changed, 17 insertions(+), 4 deletions(-) diff --git a/scribo/ChangeLog b/scribo/ChangeLog index 87364fc..b1be73d 100644 --- a/scribo/ChangeLog +++ b/scribo/ChangeLog @@ -1,5 +1,10 @@ 2011-05-26 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + * scribo/primitive/extract/lines_h_thick_and_thin.hh: Improve + result quality. + +2011-05-26 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + Add new hooks in toolchain functors. * toolchain/internal/toolchain_functor.hh: Here. diff --git a/scribo/scribo/primitive/extract/lines_h_thick_and_thin.hh b/scribo/scribo/primitive/extract/lines_h_thick_and_thin.hh index 511da9f..53a5c32 100644 --- a/scribo/scribo/primitive/extract/lines_h_thick_and_thin.hh +++ b/scribo/scribo/primitive/extract/lines_h_thick_and_thin.hh @@ -83,7 +83,7 @@ namespace scribo unsigned length, unsigned delta, float p_few = 0.2, // very tolerant (v. severe is 0.05) float p_enough = 0.6, // very tolerant (v. severe is 0.80) - unsigned filter_factor = 1); + float ratio = 8); # ifndef MLN_INCLUDE_ONLY @@ -469,7 +469,7 @@ namespace scribo lines_h_thick_and_thin(const Image<I>& binary_image_, unsigned length, unsigned delta, float p_few, float p_enough, - unsigned filter_factor) + float ratio) { trace::entering("scribo::primitive::extract::lines_h_thick_and_thin"); @@ -504,9 +504,17 @@ namespace scribo mln::util::array<box2d> bbox = labeling::compute(accu::shape::bbox<point2d>(), lbl, nlabels); + image2d<value::int_u8> debug; + initialize(debug, binary_image); + data::fill(debug, 0); for_all_ncomponents(e, nlabels) - if (bbox(e).width() < filter_factor * length || bbox(e).width() / bbox(e).height() < 3) - data::fill(((output | bbox(e)).rw() | (pw::value(lbl) == pw::cst(e))).rw(), false); + { + if (bbox(e).width() < length || + (std::max(bbox(e).width(), bbox(e).height()) / + std::min(bbox(e).width(), bbox(e).height()) + 0.49999) < ratio) + data::fill(((output | bbox(e)).rw() + | (pw::value(lbl) == pw::cst(e))).rw(), false); + } debug::logger().log_image(debug::Results, output, "lines_h_thick_and_thin_output"); -- 1.5.6.5