cv::SIFT Class Reference

#include <features2d.hpp>

List of all members.

Classes
struct	CommonParams
struct	DescriptorParams
struct	DetectorParams
Public Member Functions
int	descriptorSize () const
	returns the descriptor size in floats (128)
CommonParams	getCommonParams () const
DescriptorParams	getDescriptorParams () const
DetectorParams	getDetectorParams () const
void	operator() (const Mat &img, const Mat &mask, vector< KeyPoint > &keypoints, Mat &descriptors, bool useProvidedKeypoints=false) const
void	operator() (const Mat &img, const Mat &mask, vector< KeyPoint > &keypoints) const
	finds the keypoints using SIFT algorithm
	SIFT (const CommonParams &_commParams, const DetectorParams &_detectorParams=DetectorParams(), const DescriptorParams &_descriptorParams=DescriptorParams())
	SIFT (double _magnification, bool _isNormalize=true, bool _recalculateAngles=true, int _nOctaves=CommonParams::DEFAULT_NOCTAVES, int _nOctaveLayers=CommonParams::DEFAULT_NOCTAVE_LAYERS, int _firstOctave=CommonParams::DEFAULT_FIRST_OCTAVE, int _angleMode=CommonParams::FIRST_ANGLE)
	sift-descriptor constructor
	SIFT (double _threshold, double _edgeThreshold, int _nOctaves=CommonParams::DEFAULT_NOCTAVES, int _nOctaveLayers=CommonParams::DEFAULT_NOCTAVE_LAYERS, int _firstOctave=CommonParams::DEFAULT_FIRST_OCTAVE, int _angleMode=CommonParams::FIRST_ANGLE)
	sift-detector constructor
	SIFT ()
Protected Attributes
CommonParams	commParams
DescriptorParams	descriptorParams
DetectorParams	detectorParams

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Detailed Description

SIFT implementation.

The class implements SIFT algorithm by D. Lowe.

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Constructor & Destructor Documentation

cv::SIFT::SIFT

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)

cv::SIFT::SIFT	(	double	_threshold,
		double	_edgeThreshold,
		int	_nOctaves = CommonParams::DEFAULT_NOCTAVES,
		int	_nOctaveLayers = CommonParams::DEFAULT_NOCTAVE_LAYERS,
		int	_firstOctave = CommonParams::DEFAULT_FIRST_OCTAVE,
		int	_angleMode = CommonParams::FIRST_ANGLE
	)

sift-detector constructor

cv::SIFT::SIFT	(	double	_magnification,
		bool	_isNormalize = true,
		bool	_recalculateAngles = true,
		int	_nOctaves = CommonParams::DEFAULT_NOCTAVES,
		int	_nOctaveLayers = CommonParams::DEFAULT_NOCTAVE_LAYERS,
		int	_firstOctave = CommonParams::DEFAULT_FIRST_OCTAVE,
		int	_angleMode = CommonParams::FIRST_ANGLE
	)

sift-descriptor constructor

cv::SIFT::SIFT	(	const CommonParams &	_commParams,
		const DetectorParams &	_detectorParams = DetectorParams(),
		const DescriptorParams &	_descriptorParams = DescriptorParams()
	)

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Member Function Documentation

int cv::SIFT::descriptorSize

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)

const [inline]

returns the descriptor size in floats (128)

CommonParams cv::SIFT::getCommonParams

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const [inline]

DescriptorParams cv::SIFT::getDescriptorParams

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const [inline]

DetectorParams cv::SIFT::getDetectorParams

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const [inline]

void cv::SIFT::operator()	(	const Mat &	img,
		const Mat &	mask,
		vector< KeyPoint > &	keypoints,
		Mat &	descriptors,
		bool	useProvidedKeypoints = false
	)			const

finds the keypoints and computes descriptors for them using SIFT algorithm. Optionally it can compute descriptors for the user-provided keypoints

void cv::SIFT::operator()	(	const Mat &	img,
		const Mat &	mask,
		vector< KeyPoint > &	keypoints
	)			const

finds the keypoints using SIFT algorithm

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Member Data Documentation

CommonParams cv::SIFT::commParams [protected]

DescriptorParams cv::SIFT::descriptorParams [protected]

DetectorParams cv::SIFT::detectorParams [protected]

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

• /home/grier/opencv/opencv/modules/features2d/include/opencv2/features2d/features2d.hpp