boofcv.alg.weights

Interface WeightPixel_F32

All Known Implementing Classes:

WeightPixelGaussian_F32, WeightPixelKernel_F32, WeightPixelUniform_F32

public interface WeightPixel_F32

Used to get the weight for a pixel from a kernel in 2D space. The kernel is assumed to be centered around 0 and has the specified radius. The kernel has a width of radius*2 + 1. The information stored inside this interface could be represented as a 2D array, but the interface allows a simple return to be used if the value is constant.

Method Summary

Modifier and Type	Method and Description
int	getRadiusX() Returns the kernel's radius along the x-axis
int	getRadiusY() Returns the kernel's radius along the y-axis
void	setRadius(int radiusX, int radiusY) 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.

Method Detail

weightIndex

float weightIndex(int index)

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

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

Parameters:

index - index of grid element

Returns:

the weight

weight

float weight(int x,
             int y)

Access the weight using coordinates.

Parameters:

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

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

Returns:

the weight

setRadius

void setRadius(int radiusX,
               int radiusY)

Change the kernel's size

Parameters:

radiusX - Radius along x-axis

radiusY - Radius along y-axis

getRadiusX

int getRadiusX()

Returns the kernel's radius along the x-axis

Returns:

Radius of kernel

getRadiusY

int getRadiusY()

Returns the kernel's radius along the y-axis

Returns:

Radius of kernel