org.bytedeco.opencv.opencv_xfeatures2d

Class FREAK

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.opencv.opencv_core.Algorithm

org.bytedeco.opencv.opencv_features2d.Feature2D

org.bytedeco.opencv.opencv_xfeatures2d.FREAK

All Implemented Interfaces:

AutoCloseable

@Namespace(value="cv::xfeatures2d")
 @NoOffset
 @Properties(inherit=opencv_xfeatures2d.class)
public class FREAK
extends Feature2D

\addtogroup xfeatures2d_experiment \{

/** \brief Class implementing the FREAK (*Fast Retina Keypoint*) keypoint descriptor, described in \cite AOV12 .

The algorithm propose a novel keypoint descriptor inspired by the human visual system and more precisely the retina, coined Fast Retina Key- point (FREAK). A cascade of binary strings is computed by efficiently comparing image intensities over a retinal sampling pattern. FREAKs are in general faster to compute with lower memory load and also more robust than SIFT, SURF or BRISK. They are competitive alternatives to existing keypoints in particular for embedded applications.

\note - An example on how to use the FREAK descriptor can be found at opencv_source_code/samples/cpp/freak_demo.cpp

Nested Class Summary

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator, Pointer.ReferenceCounter

Field Summary

Fields

Modifier and Type	Field and Description
static int	NB_ORIENPAIRS
static int	NB_PAIRS
static int	NB_SCALES

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
FREAK(Algorithm pointer) Downcast constructor.
FREAK(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
static FREAK	create()
static FREAK	create(boolean orientationNormalized, boolean scaleNormalized, float patternScale, int nOctaves, int[] selectedPairs)
static FREAK	create(boolean orientationNormalized, boolean scaleNormalized, float patternScale, int nOctaves, IntBuffer selectedPairs)
static FREAK	create(boolean orientationNormalized, boolean scaleNormalized, float patternScale, int nOctaves, IntPointer selectedPairs)
BytePointer	getDefaultName() Returns the algorithm string identifier.
int	getNOctaves()
boolean	getOrientationNormalized()
double	getPatternScale()
boolean	getScaleNormalized()
static int	NB_ORIENPAIRS()
static int	NB_PAIRS()
static int	NB_SCALES()
void	setNOctaves(int nOctaves)
void	setOrientationNormalized(boolean orientationNormalized)
void	setPatternScale(double patternScale)
void	setScaleNormalized(boolean scaleNormalized)

Methods inherited from class org.bytedeco.opencv.opencv_features2d.Feature2D

asAlgorithm, asAlgorithm, compute, compute, compute, compute, compute, compute, defaultNorm, descriptorSize, descriptorType, detect, detect, detect, detect, detect, detect, detect, detect, detect, detect, detect, detect, detectAndCompute, detectAndCompute, detectAndCompute, detectAndCompute, detectAndCompute, detectAndCompute, empty, getPointer, position, read, read, read, write, write, write, write, write

Methods inherited from class org.bytedeco.opencv.opencv_core.Algorithm

clear, save, save

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, availablePhysicalBytes, calloc, capacity, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, getDirectBufferAddress, getPointer, getPointer, getPointer, hashCode, interruptDeallocatorThread, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetAddress, offsetof, offsetof, parseBytes, physicalBytes, physicalBytesInaccurate, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, sizeof, toString, totalBytes, totalCount, totalPhysicalBytes, withDeallocator, zero

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

NB_SCALES

public static final int NB_SCALES

NB_PAIRS

public static final int NB_PAIRS

NB_ORIENPAIRS

public static final int NB_ORIENPAIRS

Constructor Detail

FREAK

public FREAK(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

FREAK

public FREAK(Algorithm pointer)

Downcast constructor.

Method Detail

NB_SCALES

@MemberGetter
public static int NB_SCALES()

NB_PAIRS

@MemberGetter
public static int NB_PAIRS()

NB_ORIENPAIRS

@MemberGetter
public static int NB_ORIENPAIRS()

create

@opencv_core.Ptr
public static FREAK create(@Cast(value="bool")
                                             boolean orientationNormalized,
                                             @Cast(value="bool")
                                             boolean scaleNormalized,
                                             float patternScale,
                                             int nOctaves,
                                             @StdVector
                                             IntPointer selectedPairs)

Parameters:

orientationNormalized - Enable orientation normalization.

scaleNormalized - Enable scale normalization.

patternScale - Scaling of the description pattern.

nOctaves - Number of octaves covered by the detected keypoints.

selectedPairs - (Optional) user defined selected pairs indexes,

create

@opencv_core.Ptr
public static FREAK create()

create

@opencv_core.Ptr
public static FREAK create(@Cast(value="bool")
                                             boolean orientationNormalized,
                                             @Cast(value="bool")
                                             boolean scaleNormalized,
                                             float patternScale,
                                             int nOctaves,
                                             @StdVector
                                             IntBuffer selectedPairs)

create

@opencv_core.Ptr
public static FREAK create(@Cast(value="bool")
                                             boolean orientationNormalized,
                                             @Cast(value="bool")
                                             boolean scaleNormalized,
                                             float patternScale,
                                             int nOctaves,
                                             @StdVector
                                             int[] selectedPairs)

setOrientationNormalized

public void setOrientationNormalized(@Cast(value="bool")
                                     boolean orientationNormalized)

getOrientationNormalized

@Cast(value="bool")
public boolean getOrientationNormalized()

setScaleNormalized

public void setScaleNormalized(@Cast(value="bool")
                               boolean scaleNormalized)

getScaleNormalized

@Cast(value="bool")
public boolean getScaleNormalized()

setPatternScale

public void setPatternScale(double patternScale)

getPatternScale

public double getPatternScale()

setNOctaves

public void setNOctaves(int nOctaves)

getNOctaves

public int getNOctaves()

getDefaultName

@opencv_core.Str
public BytePointer getDefaultName()

Description copied from class: Algorithm

Returns the algorithm string identifier. This string is used as top level xml/yml node tag when the object is saved to a file or string.

Overrides:

getDefaultName in class Feature2D