lti::localColorFeature Class Reference
[Color Analysis]

This functor calculates for each location in a given list color-features. More...

#include <ltiLocalColorFeature.h>

Inheritance diagram for lti::localColorFeature:

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Collaboration diagram for lti::localColorFeature:

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List of all members.

Classes
class	parameters
	The parameters for the class localColorFeature. More...
class	sliceMask
	Simple structure used to hold a mask and the correspoinding io-points of the circle. More...
Public Member Functions
	localColorFeature ()
	localColorFeature (const parameters &param)
	localColorFeature (const localColorFeature &other)
virtual	~localColorFeature ()
virtual const char *	getTypeName () const
bool	apply (const lti::image &src, const std::list< location > &locs, std::list< dvector > &dest)
bool	apply (const lti::image &src, const location &locs, dvector &dest)
const kernel2D< ubyte > &	getMask () const
localColorFeature &	copy (const localColorFeature &other)
localColorFeature &	operator= (const localColorFeature &other)
virtual functor *	clone () const
const parameters &	getParameters () const
virtual bool	updateParameters ()
Protected Attributes
sliceMask	normalMask
sliceMask	overlapMask

Detailed Description

This functor calculates for each location in a given list color-features.

Each location will be considered as a circular region, that will be divided in a specified number of slices. The color feature will compute for each slice the average color.

It is also possible to compute overlapping slices, to make the feature more robust against noise.

You can compute the locations with the functor lti::axLocationSearch or with lti::pyramidLocationSearch.

Constructor & Destructor Documentation

lti::localColorFeature::localColorFeature ( )

Default constructor.

lti::localColorFeature::localColorFeature ( const parameters & param )

Constructor with default parameters.

lti::localColorFeature::localColorFeature ( const localColorFeature & other )

Copy constructor.

Parameters:

other

the object to be copied

virtual lti::localColorFeature::~localColorFeature ( ) [virtual]

Destructor.

Member Function Documentation

bool lti::localColorFeature::apply	(	const lti::image &	src,
		const location &	locs,
		dvector &	dest
	)

Compute the color feature for the given location.

Parameters:

	src	original image to be analyzed.
	locs	location that need to be analyzed.
	dest	feature vector. This vector contains the average color of the the slices. The structure of the vector for slices=2 and overlapping set to true would be: rrrrggggbbbb.

Returns:: true if successful, or false otherwise.

bool lti::localColorFeature::apply	(	const lti::image &	src,
		const std::list< location > &	locs,
		std::list< dvector > &	dest
	)

Compute the color feature for each location.

Parameters:

	src	original image to be analyzed.
	locs	locations that need to be analyzed.
	dest	list of feature vectors. This list will have the same size as locs and contains the average color of the location and of the slices. The structure of an element of the vector list for slices=2 and overlapping would be: rrrrggggbbbb.