boofcv.abst.filter.derivative

Class ImageGradient_Gaussian<I extends ImageSingleBand,D extends ImageSingleBand>

java.lang.Object

boofcv.abst.filter.derivative.ImageGradient_Gaussian<I,D>

All Implemented Interfaces:

ImageDerivative<I,D>, ImageGradient<I,D>

public class ImageGradient_Gaussian<I extends ImageSingleBand,D extends ImageSingleBand>
extends Object
implements ImageGradient<I,D>

Finds the derivative using a Gaussian kernel. This is the same as convolving the image and then computing the derivative

Author:

Peter Abeles

Constructor Summary

Constructors

Constructor and Description
ImageGradient_Gaussian(double sigma, int radius, Class<I> inputType, Class<D> derivType)
ImageGradient_Gaussian(int radius, Class<I> inputType, Class<D> derivType)

Method Summary

Methods

Modifier and Type	Method and Description
int	getBorder() How many pixels wide is the region that is not processed along the outside border of the image.
BorderType	getBorderType() Returns how the image borders are handled.
Class	getDerivType()
void	process(I inputImage, D derivX, D derivY) Computes the image gradient from the input image and stores the results into 'derivX' and 'derivY'
void	setBorderType(BorderType type) Overrides the default border behavior.

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageGradient_Gaussian

public ImageGradient_Gaussian(int radius,
                      Class<I> inputType,
                      Class<D> derivType)

ImageGradient_Gaussian

public ImageGradient_Gaussian(double sigma,
                      int radius,
                      Class<I> inputType,
                      Class<D> derivType)

Method Detail

process

public void process(I inputImage,
           D derivX,
           D derivY)

Description copied from interface: ImageGradient

Computes the image gradient from the input image and stores the results into 'derivX' and 'derivY'

Specified by:

process in interface ImageGradient<I extends ImageSingleBand,D extends ImageSingleBand>

Parameters:

inputImage - Original input image. Not modified.

derivX - First order image derivative along the x-axis. Modified.

derivY - First order image derivative along the y-axis. Modified.

setBorderType

public void setBorderType(BorderType type)

Description copied from interface: ImageDerivative

Overrides the default border behavior. See FactoryDerivative for a discussion of the pros and cons of each border type.

Specified by:

setBorderType in interface ImageDerivative<I extends ImageSingleBand,D extends ImageSingleBand>

Parameters:

type - How image borders are handled.

getBorderType

public BorderType getBorderType()

Description copied from interface: ImageDerivative

Returns how the image borders are handled.

Specified by:

getBorderType in interface ImageDerivative<I extends ImageSingleBand,D extends ImageSingleBand>

Returns:

Image border type.

getBorder

public int getBorder()

Description copied from interface: ImageDerivative

How many pixels wide is the region that is not processed along the outside border of the image.

Specified by:

getBorder in interface ImageDerivative<I extends ImageSingleBand,D extends ImageSingleBand>

Returns:

number of pixels.

getDerivType

public Class getDerivType()

Specified by:

getDerivType in interface ImageDerivative<I extends ImageSingleBand,D extends ImageSingleBand>