oln::topo::tarjan::obsolete::flat_zone< I > Struct Template Reference

#include <flat-zone.hh>

Collaboration diagram for oln::topo::tarjan::obsolete::flat_zone< I >:

[legend]List of all members.

Public Types
typedef mlc::exact< I >::ret::point_type	point_type
typedef mlc::exact< I >::ret::value_type	data_type
typedef oln::mute< I >::ret	image_type
typedef tarjan::tarjan_set< image_type, tarjan::empty_class >	tarjan_cc
Public Member Functions
	flat_zone (const image_type &input_)
void	doit ()
	Compute the image of label.
const unsigned	get_label (const point_type &p) const
	Get the label of a point p.
const point_type &	get_root (unsigned l) const
	Get the root point of a label l.
const unsigned	nlabels () const
	Number of label.
void	merge (const int l1, const int l2)
Public Attributes
const image_type &	input
tarjan_cc	cc
image2d< unsigned >	label
	output image.
std::vector< point_type >	look_up_table
image2d< std::vector< oln::point2d > >	ima_region
unsigned	nlabels_

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Detailed Description

template<class I>
struct oln::topo::tarjan::obsolete::flat_zone< I >

Create an image of label of the flat zones.

Todo:

FIXME: many assertions are missing.

 #include <oln/basics2d.hh>
 #include <oln/topo/tarjan/flat-zone.hh>
 #include <oln/convert/stretch.hh>

 int main()
 {
   typedef oln::image2d<ntg::int_u8> img_type;
   img_type in = oln::load(IMG_IN "test-cmap.pgm");
   oln::topo::tarjan::obsolete::flat_zone<img_type> z(in);
   save(oln::convert::stretch_balance<ntg::int_u8>(z.label, 0, 255),
        IMG_OUT "oln_topo_flat_zone.pgm");
  }

input image

=>

output image

Definition at line 219 of file flat-zone.hh.

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Constructor & Destructor Documentation

template<class I> oln::topo::tarjan::obsolete::flat_zone< I >::flat_zone (  const image_type &  input_  )  [inline]

Initialize the flat-zone with an image. doit is called. Definition at line 241 of file flat-zone.hh. References oln::topo::tarjan::obsolete::flat_zone< I >::doit(), and oln::topo::tarjan::obsolete::flat_zone< I >::label. : input(input_), cc(input_), label(input_.size()), ima_region(input_.size()), nlabels_(0) { doit(); }

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Member Function Documentation

template<class I> void oln::topo::tarjan::obsolete::flat_zone< I >::merge (  const int  l1, const int  l2 )  [inline]

Merge two flat zone. Note: FIMXE: should be protected, shouldn't it? Definition at line 361 of file flat-zone.hh. References oln::topo::tarjan::tarjan_set< I, aux_data_type >::is_root(), oln::topo::tarjan::obsolete::flat_zone< I >::label, and oln::topo::tarjan::tarjan_set< I, aux_data_type >::uni(). { point_type root_l1 = look_up_table[l1]; point_type root_l2 = look_up_table[l2]; assertion(cc.is_root(root_l1)); assertion(cc.is_root(root_l2)); // merge cc.uni(root_l2, root_l1); // update our tables look_up_table[l2] = root_l1; for (typename std::vector<point_type>::iterator i = ima_region[root_l2].begin(); i != ima_region[root_l2].end(); ++i) label[*i] = l1; ima_region[root_l1].insert(ima_region[root_l1].end(), ima_region[root_l1].begin(), ima_region[root_l1].end()); ima_region[root_l2].clear(); --nlabels_; }

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The documentation for this struct was generated from the following file:

• flat-zone.hh

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