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() Default native constructor.
FREAK(long size) Native array allocator.
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)
static int	NB_ORIENPAIRS()
static int	NB_PAIRS()
static int	NB_SCALES()
FREAK	position(long position)

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

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, getDefaultName, 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, hashCode, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetof, parseBytes, physicalBytes, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, toString, totalBytes, 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()

Default native constructor.

FREAK

public FREAK(long size)

Native array allocator. Access with Pointer.position(long).

FREAK

public FREAK(Pointer p)

Pointer cast constructor. Invokes Pointer.Pointer(Pointer).

Method Detail

position

public FREAK position(long position)

Overrides:

position in class Feature2D

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)