volume
Class DoG3D

java.lang.Object
  |
  +--volume.Kernel
        |
        +--volume.Kernel3D
              |
              +--volume.Gaussian3D
                    |
                    +--volume.DoG3D

public class DoG3D

extends Gaussian3D

This is a 3D Difference of Gaussian convolution kernel. DoG2D(x) = 1 / Math.sqrt(2 Math.PI * sigma^2) e^(-(x^2+y^2) / 2 sigma^2) - 1 / Math.sqrt(2 Math.PI * (1.6 sigma)^2) e^(-(x^2+y^2) / 2 (1.6 sigma)^2)

Fields inherited from class volume.Gaussian3D

sigma

Fields inherited from class volume.Kernel3D

k

Fields inherited from class volume.Kernel

halfwidth

Constructor Summary

DoG3D(double sigma)

Method Summary

protected double	function(double x, double y, double z) Compute 3D Difference of Gaussian function (DoG) at x, y.
java.lang.String	toString()

Methods inherited from class volume.Gaussian3D

getSigma

Methods inherited from class volume.Kernel3D

kernelToString

Methods inherited from class volume.Kernel

support

Methods inherited from class java.lang.Object

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

Constructor Detail

DoG3D

public DoG3D(double sigma)

Method Detail

function

protected double function(double x,
                          double y,
                          double z)

Compute 3D Difference of Gaussian function (DoG) at x, y.

Overrides:

function in class Gaussian3D

Parameters:

x - the x position

y - the y position.

z - the z position.

Returns:

a double with the value of the 3D Difference of Gaussian at x, y.

toString

public java.lang.String toString()

Overrides:

toString in class Gaussian3D