[Olena-patches] last-svn-commit-170-g9f19274 upsampling/eagle.hh: Add a new upsampling algorithm.

--- scribo/ChangeLog | 12 ++- scribo/upsampling/{bs2x.hh => eagle.hh} | 108 +++++++++++++++---------------- 2 files changed, 61 insertions(+), 59 deletions(-) copy scribo/upsampling/{bs2x.hh => eagle.hh} (50%) diff --git a/scribo/ChangeLog b/scribo/ChangeLog index 609abf5..b03b8e4 100644 --- a/scribo/ChangeLog +++ b/scribo/ChangeLog @@ -1,11 +1,15 @@ +2010-06-25 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + + * upsampling/eagle.hh: Add a new upsampling algorithm. + 2010-06-23 Arthur Crepin-Leblond &lt;crepin(a)stockholm.lrde.epita.fr&gt; Add extensions to ICDAR XML format. - + * io/xml/save_text_lines.hh: Rename as... * io/xml/save.hh: ...this. - - * src/pbm_text_in_doc.cc: update call to io::xml::save. + + * src/pbm_text_in_doc.cc: update call to io::xml::save. 2010-06-18 green &lt;jacquelet(a)lrde.epita.fr&gt; @@ -14,7 +18,7 @@ * sandbox: New experimental directory. * sandbox/green: New green'work. * sandbox/green/ChangeLog: New ChangeLog file. - + 2010-06-15 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; Small fixes. diff --git a/scribo/upsampling/bs2x.hh b/scribo/upsampling/eagle.hh similarity index 50% copy from scribo/upsampling/bs2x.hh copy to scribo/upsampling/eagle.hh index c701e47..eab1989 100644 --- a/scribo/upsampling/bs2x.hh +++ b/scribo/upsampling/eagle.hh @@ -23,34 +23,32 @@ // exception does not however invalidate any other reasons why the // executable file might be covered by the GNU General Public License. -#ifndef SCRIBO_UPSAMPLING_BS2X_HH -# define SCRIBO_UPSAMPLING_BS2X_HH +#ifndef SCRIBO_UPSAMPLING_EAGLE_HH_ +# define SCRIBO_UPSAMPLING_EAGLE_HH_ /// \file /// /// Scale 2x algorithm for binary images. # include <mln/core/concept/image.hh> -# include <mln/core/alias/box2d.hh> +# include <mln/core/def/coord.hh> # include <mln/opt/at.hh> -# include <mln/geom/all.hh> - - +# include <mln/make/box2d.hh> namespace scribo { namespace upsampling { - using namespace mln; + using namespace mln; /// \brief Scale 2x algorithm for binary images. /// // template <typename I> mln_concrete(I) - bs2x(const Image<I>& input); + eagle(const Image<I>& ima); @@ -59,80 +57,81 @@ namespace scribo template <typename I> mln_concrete(I) - bs2x(const mln::Image<I>& input_) + eagle(const Image<I>& input_) { - trace::entering("scribo::upsampling::bs2x"); + trace::entering("scribo::upsampling::eagle"); + typedef mln_value(I) V; const I& input = exact(input_); - mlc_is(mln_domain(I), mln::box2d)::check(); - mlc_is(mln_value(I), bool)::check(); - mln_precondition(input.is_valid()); - typedef mln_value(I) V; - mln::def::coord mrow = geom::min_row(input), - mcol = geom::min_col(input); + mcol = geom::min_col(input), + mxrow = geom::max_row(input), + mxcol = geom::max_col(input); mln_piter(I) p(input.domain()); - mln_concrete(I) output(mln::make::box2d(mrow, mcol, - mrow + 2 * input.nrows() - 1, - mcol + 2 * input.ncols() - 1)); + mln_concrete(I) + output(mln::make::box2d(mrow, mcol, + mrow + 2 * input.nrows() - 1, + mcol + 2 * input.ncols() - 1)); + for_all(p) { mln::def::coord - row = mrow + 2 * (p.row() - mrow), - col = mcol + 2 * (p.col() - mcol); + prow = p.row() - mrow, + pcol = p.col() - mcol; - if(p.row() == geom::min_row(input) - || p.col() == geom::min_col(input) - || p.row() == geom::max_row(input) - || p.col() == geom::max_col(input)) + if (p.row() == mrow + || p.col() == mcol + || p.row() == mxrow + || p.col() == mxcol) { - mln::box2d b = mln::make::box2d(row, col, - row + 1, col + 1); + box2d b = mln::make::box2d(2 * prow, 2 * pcol, + 2 * prow + 1, 2 * pcol + 1); + mln_piter_(box2d) pb(b); V value = opt::at(input, p.row(), p.col()); - data::fill((output | b).rw(), value); + for_all(pb) + opt::at(output, mrow + pb.row(), mcol + pb.col()) = value; } else { - // nw n ne - // - // w value e - // - // sw s se - - V n = input(p + mln::up), - s = input(p + mln::down), - e = input(p + mln::right), - w = input(p + mln::left), - nw = input(p + mln::up_left), - ne = input(p + mln::up_right), - sw = input(p + mln::down_left), - se = input(p + mln::down_right), - value = input(p); - - if(e != w && n != s) + V + n = opt::at(input, p.row() - 1, p.col()), + s = opt::at(input, p.row() + 1, p.col()), + e = opt::at(input, p.row(), p.col() + 1), + w = opt::at(input, p.row(), p.col() - 1), + nw = opt::at(input, p.row() - 1, p.col() - 1), + ne = opt::at(input, p.row() - 1, p.col() + 1), + sw = opt::at(input, p.row() + 1, p.col() - 1), + se = opt::at(input, p.row() + 1, p.col() + 1), + value = opt::at(input, p.row(), p.col()); + + if (e != w || n != s || e != n) { - opt::at(output, row, col) = (w == n &&((se != nw) || !value)) ? w : value; - opt::at(output, row, col + 1) = (e == n &&((sw != ne) || !value)) ? e : value; - opt::at(output, row + 1, col) = (w == s &&((ne != sw) || !value)) ? w : value; - opt::at(output, row + 1, col + 1) = (e == s &&((nw != se) || !value)) ? e : value; + opt::at(output, mrow + 2 * prow, mcol + 2 * pcol) = ((w == n && w == nw && nw == n) ? nw : value); + opt::at(output, mrow + 2 * prow, mcol + 2 * pcol + 1) = ((e == n && e == ne && ne == n) ? ne : value); + opt::at(output, mrow + 2 * prow + 1, mcol + 2 * pcol) = ((w == s && w == sw && sw == s) ? sw : value); + opt::at(output, mrow + 2 * prow + 1, mcol + 2 * pcol + 1) = ((e == s && e == se && se == s) ? se : value); } else { - mln::box2d b = mln::make::box2d(row, col, - row + 1, col + 1); - data::fill((output | b).rw(), value); + box2d b = mln::make::box2d(2 * prow, 2 * pcol, + 2 * prow + 1, 2 * pcol + 1); + mln_piter_(box2d) pb(b); + V value = opt::at(input, p.row(), p.col()); + + for_all(pb) + opt::at(output, mrow + pb.row(), mcol + pb.col()) = value; } } } - trace::exiting("scribo::upsampling::bs2x"); + trace::exiting("scribo::upsampling::eagle"); return output; } @@ -143,5 +142,4 @@ namespace scribo } // end of namespace scribo - -#endif // ! SCRIBO_UPSAMPLING_BS2X_HH +#endif // ! SCRIBO_UPSAMPLING_EAGLE_HH_ -- 1.5.6.5