[Olena-patches] r3789: Add a morpho transformation before edges computation

URL: https://svn.lrde.epita.fr/svn/oln/trunk/milena/sandbox ChangeLog: 2009-05-12 Fabien Freling &lt;fabien.freling(a)lrde.epita.fr&gt; Add a morpho transformation before edges computation. * fabien/igr/smooth_fixed_seg/main.cc: New edge computation, using morpho transformations. --- main.cc | 177 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 177 insertions(+) Index: trunk/milena/sandbox/fabien/igr/smooth_fixed_seg/main.cc =================================================================== --- trunk/milena/sandbox/fabien/igr/smooth_fixed_seg/main.cc (revision 0) +++ trunk/milena/sandbox/fabien/igr/smooth_fixed_seg/main.cc (revision 3789) @@ -0,0 +1,177 @@ +#include <algorithm> + +#include <mln/core/image/image1d.hh> +#include <mln/core/alias/window1d.hh> +#include <mln/core/image/image2d.hh> +#include <mln/core/alias/neighb2d.hh> +#include <mln/core/image/image3d.hh> +#include <mln/core/image/slice_image.hh> +#include <mln/core/image/image_if.hh> +#include <mln/core/routine/duplicate.hh> +#include <mln/core/routine/extend.hh> +#include <mln/core/var.hh> + +#include <mln/io/dump/all.hh> +#include <mln/io/pgm/save.hh> +#include <mln/io/ppm/save.hh> + +#include <mln/value/int_u8.hh> +#include <mln/value/int_u12.hh> +#include <mln/value/label_16.hh> + +#include <mln/accu/sum.hh> +#include <mln/accu/mean.hh> +#include <mln/accu/image/all.hh> +#include <mln/data/fill.hh> +#include <mln/data/paste.hh> +#include <mln/convert/from_to.hh> +#include <mln/labeling/wrap.hh> +#include <mln/level/compute.hh> +#include <mln/level/convert.hh> +#include <mln/level/stretch.hh> +#include <mln/make/image2d.hh> +#include <mln/math/diff_abs.hh> +#include <mln/morpho/dilation.hh> +#include <mln/morpho/erosion.hh> +#include <mln/morpho/closing/structural.hh> +#include <mln/morpho/opening/structural.hh> +#include <mln/morpho/elementary/gradient.hh> +#include <mln/morpho/watershed/flooding.hh> +#include <mln/pw/all.hh> +#include <mln/util/array.hh> + +#include <mln/world/inter_pixel/display_edge.hh> +#include <mln/world/inter_pixel/compute.hh> +#include <mln/world/inter_pixel/immerse.hh> +#include <mln/world/inter_pixel/neighb2d.hh> +#include <mln/world/inter_pixel/all.hh> + +#include <mln/labeling/colorize.hh> +#include <mln/debug/println.hh> +#include <mln/trace/quiet.hh> + + +using namespace mln; +using value::int_u8; +using value::int_u12; +using value::label_16; + + + + +// Mean image. +//------------ +template <typename V> +inline +image1d<float> +mean_image(image1d<V>& input) +{ + window1d win_1; + win_1 + .insert(-2) + .insert(-1) + .insert(0) + .insert(1) + .insert(2); + + image1d<V> closing_ima = morpho::closing::structural(input, win_1); + image1d<V> opening_ima = morpho::opening::structural(input, win_1); + + image1d<accu::mean<float> > result; + + initialize(result, input); + + accu::image::init(result); + accu::image::take(result, closing_ima); + accu::image::take(result, opening_ima); + + return accu::image::to_result(result); +} + + + +// Distance function. +//------------------- + +struct dist_t : Function_vv2v<dist_t> +{ + typedef float result; + + template <typename V> + float operator()(util::array<V> v1, util::array<V> v2) const + { + float res = 0.f; + + accu::sum<V> accu_sum; + + image1d<V> tmp_ima; + convert::from_to(v1, tmp_ima); + image1d<float> morpho_ima = mean_image(tmp_ima); + float sum_v1 = level::compute(accu_sum, morpho_ima); + + image1d<V> tmp_ima2; + convert::from_to(v2, tmp_ima2); + image1d<float> morpho_ima2 = mean_image(tmp_ima2); + float sum_v2 = level::compute(accu_sum, morpho_ima2); + + mln_piter(image1d<float>) p(morpho_ima.domain()); + for_all(p) + res += std::min(morpho_ima(p), morpho_ima2(p)); + + res /= std::max(sum_v1, sum_v2); + + return 1 - res; + } +} dist; + + + + + + + + +int usage(const char* bin) +{ + std::cout << "Usage: " << bin << " input.dump" << std::endl; + return 1; +} + +int main(int argc, char* argv[]) +{ + if (argc != 2) + return usage(argv[0]); + + + // Initialization. + image3d<int_u12> input; + io::dump::load(input, argv[1]); + typedef image2d<util::array<int_u12> > I; + I ima_arr; + initialize(ima_arr, slice(input, 0)); + for (unsigned int i = 0; i < input.nslices(); ++i) + { + image2d<int_u12> tmp_slice = duplicate(slice(input, i)); + mln_piter_(image2d<int_u12>) p(tmp_slice.domain()); + for_all(p) + ima_arr(p).append(tmp_slice(p)); + } + + + // Edges image creation. + //image2d<float> edges = dist_on_edges(ima_arr); + typedef image_if<I, world::inter_pixel::is_pixel> Ix; + Ix imax = world::inter_pixel::immerse(ima_arr); + + // Edges distance computation. + mln_VAR(edges, world::inter_pixel::compute(imax, dist)); + + { + // Display. + mln_VAR(display_ima, world::inter_pixel::display_edge(edges.unmorph_(), 0.0, 3)); + io::pgm::save(level::stretch(int_u8(), display_ima), "edges.pgm"); + } + + + return 0; +}