org.opencv.features2d

Class AffineFeature

java.lang.Object

org.opencv.core.Algorithm

org.opencv.features2d.Feature2D

org.opencv.features2d.AffineFeature

public class AffineFeature
extends Feature2D

Class for implementing the wrapper which makes detectors and extractors to be affine invariant, described as ASIFT in CITE: YM11 .

Method Summary

Modifier and Type	Method and Description
static AffineFeature	__fromPtr__(long addr)
static AffineFeature	create(Feature2D backend)
static AffineFeature	create(Feature2D backend, int maxTilt)
static AffineFeature	create(Feature2D backend, int maxTilt, int minTilt)
static AffineFeature	create(Feature2D backend, int maxTilt, int minTilt, float tiltStep)
static AffineFeature	create(Feature2D backend, int maxTilt, int minTilt, float tiltStep, float rotateStepBase)
java.lang.String	getDefaultName() Returns the algorithm string identifier.
void	getViewParams(MatOfFloat tilts, MatOfFloat rolls)
void	setViewParams(MatOfFloat tilts, MatOfFloat rolls)

Methods inherited from class org.opencv.features2d.Feature2D

compute, compute, defaultNorm, descriptorSize, descriptorType, detect, detect, detect, detect, detectAndCompute, detectAndCompute, empty, read, write

Methods inherited from class org.opencv.core.Algorithm

clear, getNativeObjAddr, save

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

__fromPtr__

public static AffineFeature __fromPtr__(long addr)

create

public static AffineFeature create(Feature2D backend)

Parameters:

backend - The detector/extractor you want to use as backend.

Returns:

automatically generated

create

public static AffineFeature create(Feature2D backend,
                                   int maxTilt)

Parameters:

backend - The detector/extractor you want to use as backend.

maxTilt - The highest power index of tilt factor. 5 is used in the paper as tilt sampling range n.

Returns:

automatically generated

create

public static AffineFeature create(Feature2D backend,
                                   int maxTilt,
                                   int minTilt)

Parameters:

backend - The detector/extractor you want to use as backend.

maxTilt - The highest power index of tilt factor. 5 is used in the paper as tilt sampling range n.

minTilt - The lowest power index of tilt factor. 0 is used in the paper.

Returns:

automatically generated

create

public static AffineFeature create(Feature2D backend,
                                   int maxTilt,
                                   int minTilt,
                                   float tiltStep)

Parameters:

backend - The detector/extractor you want to use as backend.

maxTilt - The highest power index of tilt factor. 5 is used in the paper as tilt sampling range n.

minTilt - The lowest power index of tilt factor. 0 is used in the paper.

tiltStep - Tilt sampling step \(\delta_t\) in Algorithm 1 in the paper.

Returns:

automatically generated

create

public static AffineFeature create(Feature2D backend,
                                   int maxTilt,
                                   int minTilt,
                                   float tiltStep,
                                   float rotateStepBase)

Parameters:

backend - The detector/extractor you want to use as backend.

maxTilt - The highest power index of tilt factor. 5 is used in the paper as tilt sampling range n.

minTilt - The lowest power index of tilt factor. 0 is used in the paper.

tiltStep - Tilt sampling step \(\delta_t\) in Algorithm 1 in the paper.

rotateStepBase - Rotation sampling step factor b in Algorithm 1 in the paper.

Returns:

automatically generated

getDefaultName

public java.lang.String 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

Returns:

automatically generated

getViewParams

public void getViewParams(MatOfFloat tilts,
                          MatOfFloat rolls)

setViewParams

public void setViewParams(MatOfFloat tilts,
                          MatOfFloat rolls)