boofcv.alg.feature.orientation

Class OrientationImageAverage<T extends boofcv.struct.image.ImageGray>

java.lang.Object

boofcv.alg.feature.orientation.OrientationImageAverage<T>

All Implemented Interfaces:

OrientationImage<T>, RegionOrientation

Direct Known Subclasses:

ImplOrientationImageAverage_F32, ImplOrientationImageAverage_U8

public abstract class OrientationImageAverage<T extends boofcv.struct.image.ImageGray>
extends java.lang.Object
implements OrientationImage<T>

Computes the orientation of a region by computing a weighted sum of each pixel's intensity using their respective sine and cosine values.

Field Summary

Fields

Modifier and Type	Field and Description
protected T	image
protected boofcv.struct.convolve.Kernel2D_F32	kerCosine
protected boofcv.struct.convolve.Kernel2D_F32	kerSine
protected double	objectToSample
protected boofcv.struct.ImageRectangle	rect
protected int	sampleRadius

Constructor Summary

Constructors

Constructor and Description
OrientationImageAverage(double objectToSample, int defaultRadius)

Method Summary

Modifier and Type	Method and Description
double	compute(double X, double Y) Computes the orientation of a region about its center.
protected abstract double	computeAngle(int c_x, int c_y)
void	setImage(T image) Specifies input image data for estimating orientation.
void	setObjectRadius(double objectRadius) Specifies the circle's radius that the orientation should be

Methods inherited from class java.lang.Object

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

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

getImageType

Field Detail

image

protected T extends boofcv.struct.image.ImageGray image

rect

protected boofcv.struct.ImageRectangle rect

objectToSample

protected double objectToSample

sampleRadius

protected int sampleRadius

kerCosine

protected boofcv.struct.convolve.Kernel2D_F32 kerCosine

kerSine

protected boofcv.struct.convolve.Kernel2D_F32 kerSine

Constructor Detail

OrientationImageAverage

public OrientationImageAverage(double objectToSample,
                               int defaultRadius)

Method Detail

setImage

public void setImage(T image)

Description copied from interface: OrientationImage

Specifies input image data for estimating orientation.

Specified by:

setImage in interface OrientationImage<T extends boofcv.struct.image.ImageGray>

Parameters:

image - Input image..

setObjectRadius

public void setObjectRadius(double objectRadius)

Description copied from interface: RegionOrientation

Specifies the circle's radius that the orientation should be

Specified by:

setObjectRadius in interface RegionOrientation

Parameters:

objectRadius - Object's radius.

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.

computeAngle

protected abstract double computeAngle(int c_x,
                                       int c_y)