boofcv.alg.feature.orientation

Class OrientationAverage<D extends ImageGray>

java.lang.Object

boofcv.alg.feature.orientation.OrientationAverage<D>

All Implemented Interfaces:

OrientationGradient<D>, RegionOrientation

Direct Known Subclasses:

ImplOrientationAverage_F32, ImplOrientationAverage_S16, ImplOrientationAverage_S32

public abstract class OrientationAverage<D extends ImageGray>
extends java.lang.Object
implements OrientationGradient<D>

Computes the orientation of a region by summing up the derivative along each axis independently then computing the direction fom the sum. If weighted a Gaussian kernel centered around the targeted pixel is used.

Method Summary

Modifier and Type	Method and Description
double	compute(double X, double Y) Computes the orientation of a region about its center.
int	getSampleRadius()
Kernel2D_F32	getWeights()
void	setImage(D derivX, D derivY) Specifies input image data for estimating orientation.
void	setObjectRadius(double radius) Specifies the circle's radius that the orientation should be
void	setSampleRadius(int sampleRadius)

Methods inherited from class java.lang.Object

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

Methods inherited from interface boofcv.abst.feature.orientation.OrientationGradient

getImageType

Method Detail

getSampleRadius

public int getSampleRadius()

setSampleRadius

public void setSampleRadius(int sampleRadius)

getWeights

public Kernel2D_F32 getWeights()

setObjectRadius

public void setObjectRadius(double radius)

Description copied from interface: RegionOrientation

Specifies the circle's radius that the orientation should be

Specified by:

setObjectRadius in interface RegionOrientation

Parameters:

radius - Object's radius.

setImage

public void setImage(D derivX,
                     D derivY)

Description copied from interface: OrientationGradient

Specifies input image data for estimating orientation.

Specified by:

setImage in interface OrientationGradient<D extends ImageGray>

Parameters:

derivX - Image derivative along x-axis.

derivY - Image derivative along y-axis.

compute

public double compute(double X,
                      double Y)

Description copied from interface: RegionOrientation

Computes the orientation of a region about its center.

Specified by:

compute in interface RegionOrientation

Parameters:

X - Center of the region in image pixels.

Y - Center of the region in image pixels.

Returns:

Orientation in radians. Angle zero points along x-axis and pi/2 along y-axis.