kmeans::Segmenter Class Reference

Inheritance diagram for kmeans::Segmenter:

List of all members.

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Detailed Description

Base class of image segmentation algorithms.

Author:

Lakshman

Version:

Id

Segmenter.h,v 1.5 2009/06/02 20:17:50 lakshman Exp

Public Types
typedef Cluster< SingleFeature >	RegionProperty
	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
virtual LImage< int >	segment (const LImage< int > &orig)=0
virtual	~Segmenter ()
Static Public Member Functions
static void	computeRegionProperty (const LImage< int > &orig, const LImage< int > &label, vector< RegionProperty > *fillme)
	Fills in the passed in vector with a vector of computed region properties.
static void	computeRegionProperty (const LImage< int > &label, vector< RegionProperty > *fillme)
	Fills in the passed in vector with a vector of computed region properties.
Static Protected Member Functions
static void	expand_segment (int x, int y, const LImage< int > &orig, LImage< int > &segimg, int label)
	Set the segimg at x,y to be label and then call this function.
static LImage< int >	relabel (const LImage< int > &label_img)
	Will relabel the image, removing unused labels.
static LImage< int >	pruneRegions (const LImage< int > &label, RegionPruner &)
	This method removes all regions that meet certain criteria.
Static Protected Attributes
static const int	Unset = -1000
static const int	Invalid = -2000
Classes
class	RegionPruner
	The function object passed into Segmenter::pruneRegions that controls the criteria on which the pruning is done. More...

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Member Typedef Documentation

typedef Cluster< SingleFeature > kmeans::Segmenter::RegionProperty

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

typedef std::vector<int> kmeans::Segmenter::Replacement

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.

Reimplemented in kmeans::MergingKMSegmenter< T >.

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Constructor & Destructor Documentation

virtual kmeans::Segmenter::~Segmenter

(

)

[inline, virtual]

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Member Function Documentation

static void kmeans::Segmenter::computeRegionProperty	(	const LImage< int > &	label,
		vector< RegionProperty > *	fillme
	)			[static]

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 kmeans::Segmenter::computeRegionProperty	(	const LImage< int > &	orig,
		const LImage< int > &	label,
		vector< RegionProperty > *	fillme
	)			[static]

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.

static void kmeans::Segmenter::expand_segment	(	int	x,
		int	y,
		const LImage< int > &	orig,
		LImage< int > &	segimg,
		int	label
	)			[static, protected]

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 LImage<int> kmeans::Segmenter::pruneRegions	(	const LImage< int > &	label,
		RegionPruner &
	)			[static, protected]

This method removes all regions that meet certain criteria.

The function object RegionPruner should be provided to target the appropriate regions.

Usually, you'd want to relabel the image that you get after pruning.

static LImage<int> kmeans::Segmenter::relabel

(

const LImage< int > &

label_img

)

[static, protected]

Will relabel the image, removing unused labels.

virtual LImage<int> kmeans::Segmenter::segment

(

const LImage< int > &

orig

)

[pure virtual]

Implemented in kmeans::KMeansSegmenter< T >, and kmeans::ContourSegmenter.

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Member Data Documentation

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

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

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