volume
Class DoG2D

java.lang.Object
  volume.Kernel
      volume.Kernel2D
          volume.Gaussian2D
              volume.DoG2D

public class DoG2D
extends Gaussian2D

This is a 2D Difference of Gaussian convolution kernel. Retinal optimal relationship between the sigmas of the two gaussians is 1.6 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)

Field Summary

static double

SIGMA_RELATIVE

Fields inherited from class volume.Kernel2D

k

Fields inherited from class volume.Kernel

halfwidth

Constructor Summary

DoG2D(double sigma)

Method Summary

java.lang.String

toString()

Methods inherited from class volume.Gaussian2D

getSigma

Methods inherited from class volume.Kernel2D

kernelToString

Methods inherited from class volume.Kernel

support

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

SIGMA_RELATIVE

public static final double SIGMA_RELATIVE

See Also:

Constant Field Values

Constructor Detail

DoG2D

public DoG2D(double sigma)

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class Gaussian2D