w2img::ContourSegmenter Class Reference

Inheritance diagram for w2img::ContourSegmenter:

w2img::Segmenter List of all members.

Detailed Description

Will segment the given image into regions based on an uniform division of the measurement space.

Author:
Lakshman
Version:
Id
w2img_ContourSegmenter.h,v 1.4 2009/06/02 20:17:56 lakshman Exp


Public Types

typedef Cluster< SingleFeatureRegionProperty
 The simplest region property is a cluster of a single feature.
typedef std::vector< int > Replacement
 Given a region with label i, Replacement[i] provides the new label, usually at a particular scale.

Public Member Functions

 ContourSegmenter (int min_val, int max_val, int increment, int sm_size=1, bool wrapAroundRadials=false)
 The minimum valid value, the maximum valid value and the width of each band.Typically, you want to pass in a smoothed image.
virtual SegmenterResult segment (const code::Image< int > &orig)
 The resulting image has pixels marked with the region number, starting at 1.
SegmenterResult segment (const code::Image< int > &orig) const
 The resulting image has pixels marked with the region number, starting at 1.
virtual ~ContourSegmenter ()

Static Public Member Functions

static void computeRegionProperty (const code::Image< int > &orig, const SegmenterResult &label, std::vector< RegionProperty > *fillme)
 Fills in the passed in vector with a vector of computed region properties.
static void computeRegionProperty (const SegmenterResult &label, std::vector< RegionProperty > *fillme)
 Fills in the passed in vector with a vector of computed region properties.
static void normalize (Segmenter::Replacement &replacement)
 completes the cycle
static SegmenterResult relabel (const SegmenterResult &label_img)
 Will relabel the image, removing unused labels.

Protected Member Functions

void expand_segment (int x, int y, const code::Image< int > &orig, code::Image< int > &segimg, int label) const
 Set the segimg at x,y to be label and then call this function.

Static Protected Attributes

static const int Unset = -1000
static const int Invalid = -2000


Member Typedef Documentation

typedef Cluster< SingleFeature > w2img::Segmenter::RegionProperty [inherited]

The simplest region property is a cluster of a single feature.

typedef std::vector<int> w2img::Segmenter::Replacement [inherited]

Given a region with label i, Replacement[i] provides the new label, usually at a particular scale.

The Replacement structure is such that replacement[i] provides the replacement label for the current label i. This replacement may be 0 or negative, which means that no replacement exists.


Constructor & Destructor Documentation

w2img::ContourSegmenter::ContourSegmenter ( int  min_val,
int  max_val,
int  increment,
int  sm_size = 1,
bool  wrapAroundRadials = false 
)

The minimum valid value, the maximum valid value and the width of each band.Typically, you want to pass in a smoothed image.

The optional smoothing filter size sets the size of the rectangular filter to use in smoothing the image before contouring.

virtual w2img::ContourSegmenter::~ContourSegmenter (  )  [inline, virtual]


Member Function Documentation

static void w2img::Segmenter::computeRegionProperty ( const SegmenterResult label,
std::vector< RegionProperty > *  fillme 
) [static, inherited]

Fills in the passed in vector with a vector of computed region properties.

The input label image should be a labeled image such as that returned by the segmenter. WARNING: The resulting properties will not have any of the value elements set because the original image was not passed in.

static void w2img::Segmenter::computeRegionProperty ( const code::Image< int > &  orig,
const SegmenterResult label,
std::vector< RegionProperty > *  fillme 
) [static, inherited]

Fills in the passed in vector with a vector of computed region properties.

The input label image should be a labeled image such as that returned by the segmenter.

void w2img::Segmenter::expand_segment ( int  x,
int  y,
const code::Image< int > &  orig,
code::Image< int > &  segimg,
int  label 
) const [protected, inherited]

Set the segimg at x,y to be label and then call this function.

It will expand out segimg to all contiguous values that match

static void w2img::Segmenter::normalize ( Segmenter::Replacement replacement  )  [static, inherited]

completes the cycle

static SegmenterResult w2img::Segmenter::relabel ( const SegmenterResult label_img  )  [static, inherited]

Will relabel the image, removing unused labels.

SegmenterResult w2img::ContourSegmenter::segment ( const code::Image< int > &  orig  )  const [inline]

The resulting image has pixels marked with the region number, starting at 1.

Zero values do not belong to any region.

virtual SegmenterResult w2img::ContourSegmenter::segment ( const code::Image< int > &  orig  )  [inline, virtual]

The resulting image has pixels marked with the region number, starting at 1.

Zero values do not belong to any region.

Implements w2img::Segmenter.


Member Data Documentation

const int w2img::Segmenter::Invalid = -2000 [static, protected, inherited]

const int w2img::Segmenter::Unset = -1000 [static, protected, inherited]


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