boofcv.alg.feature.orientation

Class OrientationImageAverage<T extends ImageSingleBand>

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 ImageSingleBand>
extends 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.

Author:

Peter Abeles

Field Summary

Fields

Modifier and Type	Field and Description
protected T	image
protected Kernel2D_F32	kerCosine
protected Kernel2D_F32	kerSine
protected int	radius
protected int	radiusScale
protected ImageRectangle	rect

Constructor Summary

Constructors

Constructor and Description
OrientationImageAverage(int radius)

Method Summary

Methods

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	setRadius(int radius)
void	setScale(double scale) Specifies scale at which the orientation is estimated.

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 ImageSingleBand image

rect

protected ImageRectangle rect

radius

protected int radius

radiusScale

protected int radiusScale

kerCosine

protected Kernel2D_F32 kerCosine

kerSine

protected Kernel2D_F32 kerSine

Constructor Detail

OrientationImageAverage

public OrientationImageAverage(int radius)

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 ImageSingleBand>

Parameters:

image - Input image..

setRadius

public void setRadius(int radius)

setScale

public void setScale(double scale)

Description copied from interface: RegionOrientation

Specifies scale at which the orientation is estimated.

Specified by:

setScale in interface RegionOrientation

Parameters:

scale - Scale of the orientation region.

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)