boofcv.alg.feature.orientation.impl

Class ImplOrientationImageAverageIntegral<T extends ImageGray,G extends GradientValue>

java.lang.Object

boofcv.alg.feature.orientation.OrientationIntegralBase<T,G>

boofcv.alg.feature.orientation.impl.ImplOrientationImageAverageIntegral<T,G>

All Implemented Interfaces:

OrientationIntegral<T>, RegionOrientation

public class ImplOrientationImageAverageIntegral<T extends ImageGray,G extends GradientValue>
extends OrientationIntegralBase<T,G>

Estimates the orientation of a region using a "derivative free" method. Points are sampled using an integral image.

Constructor Summary

Constructors

Constructor and Description
ImplOrientationImageAverageIntegral(double radiusToScale, int sampleRadius, double period, int sampleWidth, double weightSigma, java.lang.Class<T> imageType)

Method Summary

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

Methods inherited from class boofcv.alg.feature.orientation.OrientationIntegralBase

getImageType

Methods inherited from class java.lang.Object

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

Constructor Detail

ImplOrientationImageAverageIntegral

public ImplOrientationImageAverageIntegral(double radiusToScale,
                                           int sampleRadius,
                                           double period,
                                           int sampleWidth,
                                           double weightSigma,
                                           java.lang.Class<T> imageType)

Parameters:

sampleRadius - Radius of the region being considered in terms of Wavelet samples. Typically 6.

weightSigma - Sigma for weighting distribution. Zero for unweighted.

Method Detail

setImage

public void setImage(T integralImage)

Description copied from interface: OrientationIntegral

Specifies input image data for estimating orientation.

Specified by:

setImage in interface OrientationIntegral<T extends ImageGray>

Overrides:

setImage in class OrientationIntegralBase<T extends ImageGray,G extends GradientValue>

Parameters:

integralImage - Input image transformed into an integral image.

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

Overrides:

setObjectRadius in class OrientationIntegralBase<T extends ImageGray,G extends GradientValue>

Parameters:

radius - Object's radius.

compute

public double compute(double c_x,
                      double c_y)

Description copied from interface: RegionOrientation

Computes the orientation of a region about its center.

Parameters:

c_x - Center of the region in image pixels.

c_y - Center of the region in image pixels.

Returns:

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