boofcv.abst.feature.orientation

Interface RegionOrientation

All Known Subinterfaces:

OrientationGradient<D>, OrientationImage<T>, OrientationIntegral<II>

All Known Implementing Classes:

ImplOrientationAverage_F32, ImplOrientationAverage_S16, ImplOrientationAverage_S32, ImplOrientationAverageGradientIntegral, ImplOrientationHistogram_F32, ImplOrientationHistogram_S16, ImplOrientationHistogram_S32, ImplOrientationImageAverage_F32, ImplOrientationImageAverage_U8, ImplOrientationImageAverageIntegral, ImplOrientationSlidingWindow_F32, ImplOrientationSlidingWindow_S16, ImplOrientationSlidingWindow_S32, ImplOrientationSlidingWindowIntegral, OrientationAverage, OrientationGradientToImage, OrientationHistogram, OrientationImageAverage, OrientationIntegralBase, OrientationIntegralToImage, OrientationSiftToImage, OrientationSlidingWindow

public interface RegionOrientation

Estimates the orientation of a region. Often used to create rotation invariant features.

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	setScale(double scale) Specifies scale at which the orientation is estimated.

Method Detail

setScale

void setScale(double scale)

Specifies scale at which the orientation is estimated.

Parameters:

scale - Scale of the orientation region.

compute

double compute(double c_x,
               double c_y)

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.