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oln::topo Namespace Reference

Topological algorithms. More...


Classes

struct  chamfer
class  dmap

Functions

template<int d10, int d11> const chamfer< int > & mk_chamfer_3x3 (float coef=1.f)
const chamfer< float > & mk_chamfer_3x3 (float d10, float d11)
template<int d10, int d11, int d21> const chamfer< int > & mk_chamfer_5x5 (float coef=1.f)
const chamfer< float > & mk_chamfer_5x5 (float d10, float d11, float d21)
const chamfer< int > & chamfer_1_1 ()
const chamfer< int > & chamfer_1_2 ()
const chamfer< int > & chamfer_2_3 ()
const chamfer< int > & chamfer_5_7 ()
const chamfer< int > & chamfer_12_17 ()
const chamfer< int > & chessboard ()
const chamfer< int > & cityblock ()
const chamfer< int > & chamfer_4_6_9 ()
const chamfer< int > & chamfer_5_7_11 ()
const chamfer< int > & chamfer_9_13_20 ()
const chamfer< int > & chamfer_16_23_36 ()
const chamfer< float > & best_set_3x3 ()
const chamfer< float > & best_set_5x5 ()
const chamfer< int > & mchamfer_1_1 ()
const chamfer< int > & mchamfer_1_2 ()
const chamfer< int > & mchamfer_2_3 ()
const chamfer< int > & mchamfer_5_7 ()
const chamfer< int > & mchamfer_12_17 ()
const chamfer< int > & mchessboard ()
const chamfer< int > & mcityblock ()
const chamfer< int > & mchamfer_4_6_9 ()
const chamfer< int > & mchamfer_5_7_11 ()
const chamfer< int > & mchamfer_9_13_20 ()
const chamfer< int > & mchamfer_17_24_38 ()
const chamfer< float > & mbest_set_3x3 ()
const chamfer< float > & mbest_set_5x5 ()
template<class I> image2d< float > exact_dmap (const abstract::image< I > &input)
 Distance map using the Euclidean distance.

float euclidian_dist2 (const point2d &p1, const point2d &p2)

Detailed Description

Topological algorithms.

Function Documentation

const chamfer< float > & oln::topo::best_set_3x3 (   )  [inline]
 

Best set 3x3


    ** Example of oln::topo::best_set_3x3() w;
    ** w.delta(): 1
    ** w.coef: 1
    ** w.fwd:
    **  1.3408  0.9481  1.3408
    **  0.9481  .  .
    **  .  .  .
    ** w.bkd:
    **  .  .  .
    **  .  .  0.9481
    **  1.3408  0.9481  1.3408
    **

Definition at line 170 of file dmap.hxx.

References mk_chamfer_3x3(). 

00171     { return mk_chamfer_3x3(0.9481, 1.3408); }

const chamfer< float > & oln::topo::best_set_5x5 (   )  [inline]
 

Best set 5x5


    ** Example of oln::topo::best_set_5x5() w;
    ** w.delta(): 2
    ** w.coef: 1
    ** w.fwd:
    **  .  2.2044  .  2.2044  .
    **  2.2044  1.406  0.9801  1.406  2.2044
    **  .  0.9801  .  .  .
    **  .  .  .  .  .
    **  .  .  .  .  .
    ** w.bkd:
    **  .  .  .  .  .
    **  .  .  .  .  .
    **  .  .  .  0.9801  .
    **  2.2044  1.406  0.9801  1.406  2.2044
    **  .  2.2044  .  2.2044  .
    **

Definition at line 172 of file dmap.hxx.

References mk_chamfer_5x5(). 

00173     { return mk_chamfer_5x5(0.9801, 1.4060, 2.2044); }

const chamfer< int > & oln::topo::chamfer_12_17 (   )  [inline]
 

Chamfer_12_17


    ** Example of oln::topo::chamfer_12_17() w;
    ** w.delta(): 1
    ** w.coef: 12.6684
    ** w.fwd:
    **  17  12  17
    **  12   .   .
    **  .   .   .
    ** w.bkd:
    **  .  .  .
    **  .  .  12
    **  17  12  17
    **

Definition at line 151 of file dmap.hxx. 

00155 {

const chamfer< int > & oln::topo::chamfer_16_23_36 (   )  [inline]
 

Chamfer_16_23_36


    ** Example of oln::topo::chamfer_16_23_36() w;
    ** w.delta(): 2
    ** w.coef: 16.3351
    ** w.fwd:
    **  .   36  .   36  .
    **  36  23  16  23  36
    **  .   16  .   .   .
    **  .   .   .   .   .
    **  .   .   .   .   .
    ** w.bkd:
    **  .   .   .   .   .
    **  .   .   .   .   .
    **  .   .   .   16  .
    **  36  23  16  23  36
    **  .   36  .   36  .
    **

Definition at line 168 of file dmap.hxx. 

00171 { return mk_chamfer_3x3(0.9481, 1.3408); }

const chamfer< int > & oln::topo::chamfer_1_1 (   )  [inline]
 

Chamfer_1_1


    ** Example of oln::topo::chamfer_1_1() w;
    ** w.delta(): 1
    ** w.coef: 0.9003
    ** w.fwd:
    **  1  1  1
    **  1  .  .
    **  .  .  .
    ** w.bkd:
    **  .  .  .
    **  .  .  1
    **  1  1  1
    **

Definition at line 147 of file dmap.hxx.

Referenced by chessboard(). 

00155 {

const chamfer< int > & oln::topo::chamfer_1_2 (   )  [inline]
 

Chamfer_1_2


    ** Example of oln::topo::chamfer_1_2() w;
    ** w.delta(): 1
    ** w.coef: 1.2732
    ** w.fwd:
    **  2  1  2
    **  1  .  .
    **  .  .  .
    ** w.bkd:
    **  .  .  .
    **  .  .  1
    **  2  1  2
    **

Definition at line 148 of file dmap.hxx.

Referenced by cityblock(). 

00155 {

const chamfer< int > & oln::topo::chamfer_2_3 (   )  [inline]
 

Chamfer_2_3


    ** Example of oln::topo::chamfer_2_3() w;
    ** w.delta(): 1
    ** w.coef: 2.1736
    ** w.fwd:
    **  3  2  3
    **  2  .  .
    **  .  .  .
    ** w.bkd:
    **  .  .  .
    **  .  .  2
    **  3  2  3
    **

Definition at line 149 of file dmap.hxx. 

00155 {

const chamfer< int > & oln::topo::chamfer_4_6_9 (   )  [inline]
 

Chamfer_4_6_9


    ** Example of oln::topo::chamfer_4_6_9() w;
    ** w.delta(): 2
    ** w.coef: 4.1203
    ** w.fwd:
    **  .  9  .  9  .
    **  9  6  4  6  9
    **  .  4  .  .  .
    **  .  .  .  .  .
    **  .  .  .  .  .
    ** w.bkd:
    **  .  .  .  .  .
    **  .  .  .  .  .
    **  .  .  .  4  .
    **  9  6  4  6  9
    **  .  9  .  9  .
    **

Definition at line 165 of file dmap.hxx. 

00171 { return mk_chamfer_3x3(0.9481, 1.3408); }

const chamfer< int > & oln::topo::chamfer_5_7 (   )  [inline]
 

Chamfer_5_7


    ** Example of oln::topo::chamfer_5_7() w;
    ** w.delta(): 1
    ** w.coef: 5.2474
    ** w.fwd:
    **  7  5  7
    **  5  .  .
    **  .  .  .
    ** w.bkd:
    **  .  .  .
    **  .  .  5
    **  7  5  7
    **

Definition at line 150 of file dmap.hxx. 

00155 {

const chamfer< int > & oln::topo::chamfer_5_7_11 (   )  [inline]
 

Chamfer_5_7_11


    ** Example of oln::topo::chamfer_5_7_11() w;
    ** w.delta(): 2
    ** w.coef: 5.0206
    ** w.fwd:
    **  .  11  .  11  .
    **  11  7  5  7  11
    **  .  5  .  .  .
    **  .  .  .  .  .
    **  .  .  .  .  .
    ** w.bkd:
    **  .  .  .  .  .
    **  .  .  .  .  .
    **  .  .  .  5  .
    **  11  7  5  7  11
    **  .  11  .  11  .
    **

Definition at line 166 of file dmap.hxx. 

00171 { return mk_chamfer_3x3(0.9481, 1.3408); }

const chamfer< int > & oln::topo::chamfer_9_13_20 (   )  [inline]
 

Chamfer_9_13_20


    ** Example of oln::topo::chamfer_9_13_20() w;
    ** w.delta(): 2
    ** w.coef: 9.1409
    ** w.fwd:
    **  .   20  .  20  .
    **  20  13  9  13  20
    **  .   9   .   .  .
    **  .   .   .  .   .
    **  .   .   .  .   .
    ** w.bkd:
    **  .   .   .  .   .
    **  .   .   .  .   .
    **  .   .   .  9   .
    **  20  13  9  13  20
    **  .   20  .  20  .
    **

Definition at line 167 of file dmap.hxx. 

00171 { return mk_chamfer_3x3(0.9481, 1.3408); }

const chamfer< int > & oln::topo::chessboard (   )  [inline]
 

Chessboard


    ** Example of oln::topo::chessboard() w;
    ** w.delta(): 1
    ** w.coef: 0.9003
    ** w.fwd:
    **  1  1  1
    **  1  .  .
    **  .  .  .
    ** w.bkd:
    **  .  .  .
    **  .  .  1
    **  1  1  1
    **

Definition at line 154 of file dmap.hxx.

References chamfer_1_1(). 

00155     {
00156       return chamfer_1_1();
00157     }

const chamfer< int > & oln::topo::cityblock (   )  [inline]
 

Cityblock


    ** Example of oln::topo::cityblock() w;
    ** w.delta(): 1
    ** w.coef: 1.2732
    ** w.fwd:
    **  2  1  2
    **  1  .  .
    **  .  .  .
    ** w.bkd:
    **  .  .  .
    **  .  .  1
    **  2  1  2
    **

Definition at line 160 of file dmap.hxx.

References chamfer_1_2(). 

00161     {
00162       return chamfer_1_2();
00163     }

const chamfer< float > & oln::topo::mk_chamfer_3x3 (  float  d10,
float  d11
)  [inline]
 

Produce a chamfer mask 3x3

Todo:
FIXME: This highly not thread safe ! 

    ** Example of oln::topo::mk_chamfer_3x3(1.5, 2.5) w;
    ** w.delta(): 1
    ** w.coef: 1
    ** w.fwd:
    **  2.5  1.5  2.5
    **  1.5   .    .
    **   .    .    .
    ** w.bkd:
    **   .    .    .
    **   .    .   1.5
    **  2.5  1.5  2.5
    **

Definition at line 79 of file dmap.hxx. 

00080               : add (?)  , float coef = 1.f
00081     {
00082       static const w_window2d<float> w_win_fwd = ( mlc::floats_2d =
00083                                                  d11, d10, d11, mlc::lbrk,
00084                                                  d10, mlc::x(), 0.f, end );
00085       static const w_window2d<float> w_win_bkd = ( mlc::floats_2d =
00086                                                  0.f, mlc::x(),  d10, mlc::lbrk,
00087                                                  d11, d10,  d11, end );
00088       static const chamfer<float> ch_ =
00089         chamfer<float>(w_win_fwd, w_win_bkd, 1.f);
00090       return ch_;
00091     }

template<int d10, int d11>
const chamfer< int > & oln::topo::mk_chamfer_3x3 (  float  coef = 1.f  )  [inline]
 

Produce a chamfer mask 3x3

Todo:
FIXME: This highly not thread safe ! 

    ** Example of oln::topo::mk_chamfer_3x3<1,2>(3) w;
    ** w.delta(): 1
    ** w.coef: 3
    ** w.fwd:
    **  2  1  2
    **  1  .  .
    **  .  .  .
    ** w.bkd:
    **  .  .  .
    **  .  .  1
    **  2  1  2
    **

Definition at line 65 of file dmap.hxx.

Referenced by best_set_3x3(). 

00066     {
00067       static const w_window2d<int> w_win_fwd = ( mlc::ints_2d =
00068                                                d11,      d10, d11, mlc::lbrk,
00069                                                d10, mlc::x(),   0, end );
00070       static const w_window2d<int> w_win_bkd = ( mlc::ints_2d =
00071                                                  0, mlc::x(),  d10, mlc::lbrk,
00072                                                d11,      d10,  d11, end );
00073       static const chamfer<int> ch_ = chamfer<int>(w_win_fwd, w_win_bkd, coef);
00074       return ch_;
00075     }

const chamfer< float > & oln::topo::mk_chamfer_5x5 (  float  d10,
float  d11,
float  d21
)  [inline]
 

Chamfer 5x5 using float

See also:
mk_chamfer_5x5

Definition at line 111 of file dmap.hxx. 

00112     {
00113       const float O = 0.f;
00114       static const w_window2d<float> w_win_fwd = ( mlc::floats_2d =
00115                                                  O,   d21,        O, d21,   O, mlc::lbrk,
00116                                                  d21, d11,      d10, d11, d21,
00117                                                  O,   d10, mlc::x(),   O,   O, end );
00118       static const w_window2d<float> w_win_bkd = ( mlc::floats_2d =
00119                                                  O,     O, mlc::x(), d10,   O, mlc::lbrk,
00120                                                  d21, d11,      d10, d11, d21,
00121                                                  O,   d21,        O, d21,   O, end );
00122       static const chamfer<float> ch_ =
00123         chamfer<float>(w_win_fwd, w_win_bkd, 1.f);
00124       return ch_;
00125     }

template<int d10, int d11, int d21>
const chamfer< int > & oln::topo::mk_chamfer_5x5 (  float  coef = 1.f  )  [inline]
 

Chamfer 5x5


    ** Example of oln::topo::mk_chamfer_5x5<1, 2, 3>(4) w;
    ** w.delta(): 2
    ** w.coef: 4
    ** w.fwd:
    **  .  3  .  3  .
    **  3  2  1  2  3
    **  .  1  .  .  .
    **  .  .  .  .  .
    **  .  .  .  .  .
    ** w.bkd:
    **  .  .  .  .  .
    **  .  .  .  .  .
    **  .  .  .  1  .
    **  3  2  1  2  3
    **  .  3  .  3  .
    **

Definition at line 95 of file dmap.hxx.

Referenced by best_set_5x5(). 

00096     {
00097       static const w_window2d<int> w_win_fwd = ( mlc::ints_2d =
00098                                                  0, d21,        0, d21,   0, mlc::lbrk,
00099                                                d21, d11,      d10, d11, d21,
00100                                                  0, d10, mlc::x(),   0,   0, end );
00101       static const w_window2d<int> w_win_bkd = ( mlc::ints_2d =
00102                                                  0,   0, mlc::x(), d10,   0, mlc::lbrk,
00103                                                d21, d11,      d10, d11, d21,
00104                                                  0, d21,        0, d21,   0, end );
00105       static const chamfer<int> ch_ = chamfer<int>(w_win_fwd, w_win_bkd, coef);
00106       return ch_;
00107     }

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