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brip_watershed Class Reference

#include <brip_watershed.h>

Inheritance diagram for brip_watershed:

Inheritance graph
[legend]
List of all members.

Detailed Description

Definition at line 40 of file brip_watershed.h.

Public Types

enum  label { UNLABELED = 0, BOUNDARY = 1 }

Public Member Functions

 brip_watershed (brip_watershed_params const &bwp)
 Constructors/destructor.
 ~brip_watershed ()
void set_image (vil1_memory_image_of< float > const &image)
 Accessors/Mutators.
unsigned int min_region_label ()
unsigned int max_region_label ()
vil1_image overlay_image ()
vbl_array_2d< unsigned int > & region_label_array ()
bool adjacent_regions (const unsigned int region, vcl_vector< unsigned int > &adj_regs)
bool compute_regions ()
 Main process method.
void print_region_array ()
 Debug methods.
void print_adjacency_map ()
bool SanityCheck ()
 Checks that parameters are within acceptable bounds.

Public Attributes

float sigma_
 Standard deviation of the smoothing kernel.
float thresh_
 Threshold (min grad difference for a seed).
bool eight_connected_
 Neighborhood connectivity (8 vs 4).
bool verbose_
 output debug messages

Protected Member Functions

void print_neighborhood (int col, int row, unsigned int lab)
 internal methods.
bool add_adjacency (const unsigned int reg, const unsigned int adj_reg)
 add a region adjacency relation. Returns false if relation is already known.
bool compute_seeds ()
 Find points of local minima in gradient magnitude.
bool initialize_queue ()
 Initialize the priority queue from the seeds give each region a new label.
bool grow_regions ()
 Process the priority queue and grow regions.
 brip_watershed ()
 members.
void InitParams (float sigma, float thresh, bool eight_connected, bool verbose)

Protected Attributes

int width_
int height_
unsigned int max_region_label_
vbl_array_2d< unsigned int > region_label_array_
vil1_memory_image_of< float > image_
vil1_memory_image_of< float > gradient_mag_image_
vcl_priority_queue< brip_region_pixel_sptr,
vcl_vector< brip_region_pixel_sptr >,
brip_region_pixel::compare > 		priority_queue_
vcl_map< unsigned int, vcl_vector<
unsigned int > * > 		region_adjacency_

Friends

vcl_ostream & operator<< (vcl_ostream &, const brip_watershed_params &wp)

Member Enumeration Documentation

enum brip_watershed::label
 

Enumerator:
UNLABELED 
BOUNDARY 

Definition at line 43 of file brip_watershed.h.

Constructor & Destructor Documentation

brip_watershed::brip_watershed (  brip_watershed_params const &  bwp  ) 
 

Constructors/destructor.

Definition at line 14 of file brip_watershed.cxx.

brip_watershed::~brip_watershed (   ) 
 

Definition at line 20 of file brip_watershed.cxx.

brip_watershed::brip_watershed (   )  [protected]
 

members.

Member Function Documentation

bool brip_watershed::add_adjacency (  const unsigned int  reg,
const unsigned int  adj_reg
)  [protected]
 

add a region adjacency relation. Returns false if relation is already known.

Definition at line 264 of file brip_watershed.cxx.

bool brip_watershed::adjacent_regions (  const unsigned int  region,
vcl_vector< unsigned int > &  adj_regs
) 
 

Definition at line 289 of file brip_watershed.cxx.

bool brip_watershed::compute_regions (   ) 
 

Main process method.

Definition at line 304 of file brip_watershed.cxx.

bool brip_watershed::compute_seeds (   )  [protected]
 

Find points of local minima in gradient magnitude.

Label these points as seeds.

Definition at line 114 of file brip_watershed.cxx.

bool brip_watershed::grow_regions (   )  [protected]
 

Process the priority queue and grow regions.

Definition at line 184 of file brip_watershed.cxx.

bool brip_watershed::initialize_queue (   )  [protected]
 

Initialize the priority queue from the seeds give each region a new label.

Definition at line 158 of file brip_watershed.cxx.

void brip_watershed_params::InitParams (  float  sigma,
float  thresh,
bool  eight_connected,
bool  verbose
)  [protected, inherited]
 

Definition at line 24 of file brip_watershed_params.cxx.

unsigned int brip_watershed::max_region_label (   )  [inline]
 

Definition at line 50 of file brip_watershed.h.

unsigned int brip_watershed::min_region_label (   )  [inline]
 

Definition at line 49 of file brip_watershed.h.

vil1_image brip_watershed::overlay_image (   ) 
 

Definition at line 328 of file brip_watershed.cxx.

void brip_watershed::print_adjacency_map (   ) 
 

Definition at line 71 of file brip_watershed.cxx.

void brip_watershed::print_neighborhood (  int  col,
int  row,
unsigned int  lab
)  [protected]
 

internal methods.

Definition at line 42 of file brip_watershed.cxx.

void brip_watershed::print_region_array (   ) 
 

Debug methods.

Definition at line 29 of file brip_watershed.cxx.

vbl_array_2d<unsigned int>& brip_watershed::region_label_array (   )  [inline]
 

Definition at line 52 of file brip_watershed.h.

bool brip_watershed_params::SanityCheck (   )  [inherited]
 

Checks that parameters are within acceptable bounds.

Definition at line 37 of file brip_watershed_params.cxx.

void brip_watershed::set_image (  vil1_memory_image_of< float > const &  image  ) 
 

Accessors/Mutators.

Definition at line 88 of file brip_watershed.cxx.

Friends And Related Function Documentation

vcl_ostream& operator<< (  vcl_ostream &  os,
const brip_watershed_params &  wp
)  [friend, inherited]
 

Definition at line 59 of file brip_watershed_params.cxx.

Member Data Documentation

bool brip_watershed_params::eight_connected_ [inherited]
 

Neighborhood connectivity (8 vs 4).

Definition at line 38 of file brip_watershed_params.h.

vil1_memory_image_of<float> brip_watershed::gradient_mag_image_ [protected]
 

Definition at line 74 of file brip_watershed.h.

int brip_watershed::height_ [protected]
 

Definition at line 70 of file brip_watershed.h.

vil1_memory_image_of<float> brip_watershed::image_ [protected]
 

Definition at line 73 of file brip_watershed.h.

unsigned int brip_watershed::max_region_label_ [protected]
 

Definition at line 71 of file brip_watershed.h.

vcl_priority_queue<brip_region_pixel_sptr, vcl_vector<brip_region_pixel_sptr>, brip_region_pixel::compare> brip_watershed::priority_queue_ [protected]
 

Definition at line 76 of file brip_watershed.h.

vcl_map<unsigned int, vcl_vector<unsigned int>* > brip_watershed::region_adjacency_ [protected]
 

Definition at line 77 of file brip_watershed.h.

vbl_array_2d<unsigned int> brip_watershed::region_label_array_ [protected]
 

Definition at line 72 of file brip_watershed.h.

float brip_watershed_params::sigma_ [inherited]
 

Standard deviation of the smoothing kernel.

Definition at line 36 of file brip_watershed_params.h.

float brip_watershed_params::thresh_ [inherited]
 

Threshold (min grad difference for a seed).

Definition at line 37 of file brip_watershed_params.h.

bool brip_watershed_params::verbose_ [inherited]
 

output debug messages

Definition at line 39 of file brip_watershed_params.h.

int brip_watershed::width_ [protected]
 

Definition at line 69 of file brip_watershed.h.

The documentation for this class was generated from the following files:
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