boofcv.alg.filter.derivative.impl

Class GradientSparsePrewitt_U8

java.lang.Object

boofcv.alg.filter.derivative.impl.GradientSparsePrewitt_U8

All Implemented Interfaces:

SparseImageGradient<GrayU8,GradientValue_I32>, SparseImageOperator<GrayU8>

public class GradientSparsePrewitt_U8
extends java.lang.Object
implements SparseImageGradient<GrayU8,GradientValue_I32>

Sparse computation of the Prewitt gradient operator.

Constructor Summary

Constructors

Constructor and Description
GradientSparsePrewitt_U8(ImageBorder_S32<GrayU8> border) Specifies how border pixels are handled.

Method Summary

Modifier and Type	Method and Description
GradientValue_I32	compute(int x, int y) Computes the gradient at the specified point.
java.lang.Class<GradientValue_I32>	getGradientType()
boolean	isInBounds(int x, int y) Checks to see if the entire sample region is contained inside the image or not.
void	setImage(GrayU8 input) Specifies the image being processed.

Methods inherited from class java.lang.Object

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

Constructor Detail

GradientSparsePrewitt_U8

public GradientSparsePrewitt_U8(ImageBorder_S32<GrayU8> border)

Specifies how border pixels are handled. If null then the border is not handled.

Parameters:

border - how borders are handled

Method Detail

compute

public GradientValue_I32 compute(int x,
                                 int y)

Description copied from interface: SparseImageGradient

Computes the gradient at the specified point.

Specified by:

compute in interface SparseImageGradient<GrayU8,GradientValue_I32>

Parameters:

x - x-axis pixel coordinate

y - y-axis pixel coordinate

Returns:

Gradient at that point.

getGradientType

public java.lang.Class<GradientValue_I32> getGradientType()

Specified by:

getGradientType in interface SparseImageGradient<GrayU8,GradientValue_I32>

setImage

public void setImage(GrayU8 input)

Description copied from interface: SparseImageOperator

Specifies the image being processed.

Specified by:

setImage in interface SparseImageOperator<GrayU8>

Parameters:

input - Image being processed

isInBounds

public boolean isInBounds(int x,
                          int y)

Description copied from interface: SparseImageOperator

Checks to see if the entire sample region is contained inside the image or not. Depending on the implementation it might be able to handle out of bounds pixels or not.

Specified by:

isInBounds in interface SparseImageOperator<GrayU8>