DistanceFilter Class Reference

Computes the absolute value of the difference between a feature and a known pattern. More...

#include <distance.h>

Inheritance diagram for DistanceFilter:

List of all members.

Public Member Functions
bool	loadProfile (string filename)
	Load a profile of patterns.
void	transform (vector< float > data)
	Compute the differences.
int	size ()
	Number of results : the input dimension.
float	value (int idx)
	Retrieve the results.
void	setString (string key, string value)
	Overloaded from FeatureExtractor.
string	getString (string key)
	Overloaded from FeatureExtractor.
float	min ()
	Get the minimum value outputted.
float	max ()
	Get the maximum value outputted.
Public Member Functions inherited from Filter
	Filter ()
	Default constructor : does nothing yet.
virtual	~Filter ()
	Destructor (inherited from FeatureExtractor)
FeatureExtractor *	bind (FeatureExtractor *extr)
	Binds the filter to the output of an extractor (or another filter). Returns the old one.
bool	extract (std::deque< uint16_t > data, int size=0)
	Extract data This method should not be reimplemented by the user. The given parameters are ignored : the data is drawn from the upstream extractor without taking care of the raw data.
Public Member Functions inherited from FeatureExtractor
	FeatureExtractor (int chunkSize=0)
	Constructor. Can set the typical chunk size.
virtual	~FeatureExtractor ()
	Virtual destructor : enables each extractor to delete arrays.
bool	extract (std::deque< uint16_t > data, int size, size_t start)
	Idem, but the buffer starts at index start instead (circular buffer)
virtual float	safeValue (int index=0)
	Retrieve the results, with the bounds respected (we apply a min / max)
virtual float	value (int index, float low, float high)
	Retrieve the results, with other bounds.
virtual void	setFloat (string key, float value)
	Set a float parameter.
virtual void	setInt (string key, int value)
	Set a int parameter.
virtual float	getFloat (string key)
	Get a float parameter.
virtual int	getInt (string key)
	Get a int parameter.
virtual void	clear ()
	Clear the memory of the extractor (so that the previously computed results don't infer to the next ones)

Additional Inherited Members
Protected Member Functions inherited from Filter
virtual void	parentChanged ()
	Callback called when the upstream extractor changes.
Protected Attributes inherited from Filter
FeatureExtractor *	mExtr
	The extractor from which the data is drawn.

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Detailed Description

Computes the absolute value of the difference between a feature and a known pattern.

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

• include/filters/distance.h
• src/filters/distance.cpp