--- scribo/sandbox/ChangeLog | 4 + scribo/sandbox/z/skewness/skewness2.cc | 154 ++++++++++++++++++++++++++++++++ 2 files changed, 158 insertions(+), 0 deletions(-) create mode 100644 scribo/sandbox/z/skewness/skewness2.cc diff --git a/scribo/sandbox/ChangeLog b/scribo/sandbox/ChangeLog index 10376fc..c87381c 100644 --- a/scribo/sandbox/ChangeLog +++ b/scribo/sandbox/ChangeLog @@ -1,5 +1,9 @@ 2012-08-23 Guillaume Lazzara <z@lrde.epita.fr> + * z/skewness/skewness2.cc: New. + +2012-08-23 Guillaume Lazzara <z@lrde.epita.fr> + * z/skewness/skewness.cc: New. 2010-11-25 Guillaume Lazzara <z@lrde.epita.fr> diff --git a/scribo/sandbox/z/skewness/skewness2.cc b/scribo/sandbox/z/skewness/skewness2.cc new file mode 100644 index 0000000..642ae3f --- /dev/null +++ b/scribo/sandbox/z/skewness/skewness2.cc @@ -0,0 +1,154 @@ +#include <mln/io/pgm/all.hh> +#include <mln/io/pbm/all.hh> +#include <mln/core/image/dmorph/image_if.hh> +#include <mln/core/image/dmorph/sub_image.hh> +#include <mln/pw/all.hh> +#include <mln/value/int_u8.hh> +#include <mln/core/image/image2d.hh> +#include <mln/core/neighb.hh> +#include <mln/win/rectangle2d.hh> +#include <mln/extension/adjust.hh> +#include <mln/border/mirror.hh> +#include <mln/extension/duplicate.hh> +#include <mln/core/alias/window2d.hh> + +#include <mln/data/convert.hh> +#include <mln/data/stretch.hh> +#include <mln/debug/println.hh> +#include <mln/data/transform.hh> +#include <mln/io/dump/save.hh> +#include <mln/accu/math/sumpow.hh> +#include <mln/accu/stat/mean.hh> +#include <mln/data/compute_in_window.hh> +#include <mln/core/var.hh> +#include <mln/data/saturate.hh> +#include <mln/fun/v2b/threshold_le.hh> +#include <mln/arith/revert.hh> +#include <mln/util/timer.hh> + +mln::image2d<double> skewness; + +#include <scribo/binarization/sauvola_ms.hh> + +mln::image2d<bool> skewness_pbm; +std::string prefix; + + +int main(int argc, char *argv[]) +{ + using namespace mln; + + if (argc != 4) + { + std::cerr << "Usage: " << argv[0] << " <input.pgm> <prefix> <win_size>" << std::endl; + return 1; + } + + util::timer tt; + tt.start(); + util::timer t; + + t.start(); + image2d<value::int_u8> input; + io::pgm::load(input, argv[1]); + + prefix = argv[2]; + + int win_size = atoi(argv[3]); + win::rectangle2d wr = win::rectangle2d(win_size,win_size); + window2d win; + win.insert(wr); + + accu::pair<accu::stat::mean<value::int_u8,double>, + accu::pair<accu::math::sumpow<2,value::int_u8,double>, + accu::math::sumpow<3,value::int_u8,double> > > accu; + t.stop(); + std::cout << "initialization - " << t << std::endl; + + + t.restart(); + mln_VAR(res, data::compute_in_window(accu, input, win)); + t.stop(); + std::cout << "compute in window - " << t << std::endl; + + initialize(skewness, res); + data::fill(skewness, 0); + + + point2d pc = input.domain().pcenter(); + std::cout << pc << " - sum_2 = " << res(pc).second.first << " - sum_3 = " << res(pc).second.second << " - mean = " << res(pc).first << std::endl; + + t.restart(); + { + int n; + mln_pixter_(image2d<double>) p(skewness); + for_all(p) + { + n = win.size(); + mln_VAR(d, res.element(p.offset())); + double m = d.first; + double sum_3 = d.second.second; + double sum_2 = d.second.first; + p.val() = (sum_3 - 3. * m * sum_2) / (double) n + 2. * std::pow(m, 3); + } + } + t.stop(); + std::cout << "Compute unskew - " << t << std::endl; + + + // t.restart(); + // skewness_pbm = data::transform(skewness, fun::v2b::threshold_le<double>(0)); + // t.stop(); + // std::cout << "binarize - " << t << std::endl; + + // { + // io::dump::save(skewness, prefix + "skewness.dump"); + // io::pgm::save(data::convert(value::int_u8(), skewness), prefix + "skewness_u8.pgm"); + // io::pgm::save(data::stretch(value::int_u8(), skewness), prefix + "skewness_stretch.pgm"); + // io::pbm::save(skewness_pbm, prefix + "skewness.pbm"); + // } + + t.restart(); + { + border::resize(skewness, input.border()); + mln_pixter_(image2d<value::int_u8>) p(input); + for_all(p) + { + if (skewness.element(p.offset()) > 0) + p.val() = mln_max(value::int_u8) - p.val(); + } + } + t.stop(); + std::cout << "Negate parts of input image - " << t << std::endl; + + t.restart(); + image2d<bool> bin = scribo::binarization::sauvola_ms(input, 101, 2); + std::cout << "sauvola_ms - " << t << std::endl; + + + std::cout << "Total time : " << tt << std::endl; + // prefix += "i_"; + + // image2d<bool> bin_i = scribo::binarization::sauvola(arith::revert(input), 51); + + // prefix = argv[2]; + + io::pbm::save(bin, prefix + "bin.pbm"); + // io::pbm::save(bin_i, prefix + "bin_i.pbm"); + + // image2d<bool> out; + // initialize(out, bin); + // mln_piter_(image2d<bool>) p(out.domain()); + // for_all(p) + // if (skewness_pbm(p)) + // out(p) = bin(p); + // else + // out(p) = bin_i(p); + + // io::pbm::save(out, prefix + "output.pbm"); + + // io::dump::save(scribo::binarization::internal::debug_stddev, prefix + "stddev.dump"); + // io::dump::save(scribo::binarization::internal::debug_mean, prefix + "mean.dump"); + // io::dump::save(scribo::binarization::internal::debug_threshold, prefix + "threshold.dump"); + +} -- 1.7.2.5