Package boofcv.alg.weights

Class WeightPixelUniform_F32

java.lang.Object

boofcv.alg.weights.WeightPixelUniform_F32

All Implemented Interfaces:

WeightPixel_F32

public class WeightPixelUniform_F32
extends Object
implements WeightPixel_F32

Weights from a uniform distribution within a symmetric square region. All samples within the region return a constant value, which is 1.0/w^2, where w = radius*2+1. For performance reasons, no checks are done to see if the sample point is outside the radius and should be zero.

Constructor Summary

Constructors

Constructor	Description
WeightPixelUniform_F32()
WeightPixelUniform_F32(int radiusX, int radiusY, boolean odd)

Method Summary

Modifier and Type	Method	Description
int	getRadiusX()	Returns the kernel's radius along the x-axis
int	getRadiusY()	Returns the kernel's radius along the y-axis
boolean	isOdd()	If the width is an even or odd number
void	setRadius(int radiusX, int radiusY, boolean odd)	Change the kernel's size
float	weight(int x, int y)	Access the weight using coordinates.
float	weightIndex(int index)	Faster way to access the weight.

Methods inherited from class java.lang.Object

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

Constructor Details

WeightPixelUniform_F32

public WeightPixelUniform_F32()

WeightPixelUniform_F32

public WeightPixelUniform_F32(int radiusX,
 int radiusY,
 boolean odd)

Method Details

weightIndex

public float weightIndex(int index)

Description copied from interface: WeightPixel_F32

Faster way to access the weight. Refers to the index in a row major matrix.

x = (index % widthX) - radiusX
y = (index / widthX) - radiusY

Specified by:

weightIndex in interface WeightPixel_F32

Parameters:

index - index of grid element

Returns:

the weight

weight

public float weight(int x,
 int y)

Description copied from interface: WeightPixel_F32

Access the weight using coordinates.

Specified by:

weight in interface WeightPixel_F32

Parameters:

x - x-coordinate: range = -radius to radius, inclusive

y - y-coordinate: range = -radius to radius, inclusive

Returns:

the weight

setRadius

public void setRadius(int radiusX,
 int radiusY,
 boolean odd)

Description copied from interface: WeightPixel_F32

Change the kernel's size

Specified by:

setRadius in interface WeightPixel_F32

Parameters:

radiusX - Radius along x-axis

radiusY - Radius along y-axis

odd - If odd then the width will be 2*radius+1, otherwise 2*radius

getRadiusX

public int getRadiusX()

Description copied from interface: WeightPixel_F32

Returns the kernel's radius along the x-axis

Specified by:

getRadiusX in interface WeightPixel_F32

Returns:

Radius of kernel

getRadiusY

public int getRadiusY()

Description copied from interface: WeightPixel_F32

Returns the kernel's radius along the y-axis

Specified by:

getRadiusY in interface WeightPixel_F32

Returns:

Radius of kernel

isOdd

public boolean isOdd()

Description copied from interface: WeightPixel_F32

If the width is an even or odd number

Specified by:

isOdd in interface WeightPixel_F32