This is documentation for Mathematica 7, which was
based on an earlier version of the Wolfram Language.

# LaplacianGaussianFilter

 LaplacianGaussianFilter[image, r] convolves image with a Laplacian-of-Gaussian kernel of pixel radius r. LaplacianGaussianFilter[image, {r, }] convolves image with a Laplacian-of-Gaussian kernel of radius r and standard deviation . LaplacianGaussianFilter[data, ...]applies Laplacian-of-Gaussian filtering to an array of data.
• In LaplacianGaussianFilter[data, ...], data can be an array of any rank, and can contain symbolic as well as numerical entries.
Find edge features in a color image:
Laplacian of Gaussian applied to a grayscale image:
Find the edges of an object, showing the inside of the edge in darker tones and the outside in brighter tones.
Laplacian of Gaussian filter of a numeric array:
Find edge features in a color image:
 Out[1]=

Laplacian of Gaussian applied to a grayscale image:
 Out[1]=

Find the edges of an object, showing the inside of the edge in darker tones and the outside in brighter tones.
 Out[1]=
 Out[2]=

Laplacian of Gaussian filter of a numeric array:
 Out[1]=
 Applications   (1)
Apply a LoG filter to the output of a distance transform:
New in 7