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fl::DescriptorTextonScale Class Reference

#include <descriptor.h>

Inheritance diagram for fl::DescriptorTextonScale:

List of all members.

Public Methods
	DescriptorTextonScale (int angles=4, float firstScale=1.0f, float lastScale=4.0f, int extraSteps=3)
	DescriptorTextonScale (std::istream &stream)
void	initialize ()
void	preprocess (const Image &image)
virtual Vector< float >	value (const Image &image, const PointAffine &point)
	Returns a vector of floats that describe the image patch near the interest point.
virtual Vector< float >	value (const Image &image)
	Describe entire region that has non-zero alpha values. Descriptor may treat all non-zero alpha values the same, or use them to weight the pixels. This method is only available in Descriptors that don't require a specific point of reference. IE: a spin image must have a central point, so it can't implement this method.
virtual Image	patch (const Vector< float > &value)
	Return a graphical representation of the descriptor. Preferrably an image patch that would stimulate this descriptor to return the given value.
virtual void	read (std::istream &stream)
virtual void	write (std::ostream &stream, bool withName=true)
Public Attributes
void *	lastBuffer
	For detecting change in cached image.
double	lastTime
	For detecting change in cached image.
std::vector< ImageOf< float > >	responses
	Responses to each filter in the bank over the entire input image.
int	angles
	Number of discrete orientations in the filter bank.
float	firstScale
	Delimits lower end of scale space.
float	lastScale
	Delimits upper end of scale space.
int	steps
	Number of discrete scale levels in one octave.
int	bankSize
	Number of filters at a given scale level.
float	scaleRatio
	Ratio between two adjacent scale levels.
std::vector< ConvolutionDiscrete2D >	filters

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Detailed Description

Gathers statistics on responses to a filter bank in an image region. The bank is replicated at several scale levels, and this descriptor chooses the appropriate scale level for each individual pixel.

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Constructor & Destructor Documentation

DescriptorTextonScale::DescriptorTextonScale (  int    angles = 4, float    firstScale = 1.0f, float    lastScale = 4.0f, int    extraSteps = 3 )

DescriptorTextonScale::DescriptorTextonScale (  std::istream &    stream )

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Member Function Documentation

void DescriptorTextonScale::initialize (    )

Image DescriptorTextonScale::patch (  const Vector< float > &    value )  [virtual]

Return a graphical representation of the descriptor. Preferrably an image patch that would stimulate this descriptor to return the given value. Implements fl::Descriptor.

void DescriptorTextonScale::preprocess (  const Image &    image )

void DescriptorTextonScale::read (  std::istream &    stream )  [virtual]

Reimplemented from fl::Descriptor.

Vector< float > DescriptorTextonScale::value (  const Image &    image )  [virtual]

Describe entire region that has non-zero alpha values. Descriptor may treat all non-zero alpha values the same, or use them to weight the pixels. This method is only available in Descriptors that don't require a specific point of reference. IE: a spin image must have a central point, so it can't implement this method. Reimplemented from fl::Descriptor.

Vector< float > DescriptorTextonScale::value (  const Image &    image, const PointAffine &    point )  [virtual]

Returns a vector of floats that describe the image patch near the interest point. Implements fl::Descriptor.

void DescriptorTextonScale::write (  std::ostream &    stream, bool    withName = true )  [virtual]

Reimplemented from fl::Descriptor.

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Member Data Documentation

int fl::DescriptorTextonScale::angles

Number of discrete orientations in the filter bank.

int fl::DescriptorTextonScale::bankSize

Number of filters at a given scale level.

std::vector<ConvolutionDiscrete2D> fl::DescriptorTextonScale::filters

float fl::DescriptorTextonScale::firstScale

Delimits lower end of scale space.

void* fl::DescriptorTextonScale::lastBuffer

For detecting change in cached image.

float fl::DescriptorTextonScale::lastScale

Delimits upper end of scale space.

double fl::DescriptorTextonScale::lastTime

For detecting change in cached image.

std::vector< ImageOf<float> > fl::DescriptorTextonScale::responses

Responses to each filter in the bank over the entire input image.

float fl::DescriptorTextonScale::scaleRatio

Ratio between two adjacent scale levels.

int fl::DescriptorTextonScale::steps

Number of discrete scale levels in one octave.

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

• descriptor.h
• DescriptorTextonScale.cc

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