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LaplacianGaussianFilter

LaplacianGaussianFilter[image, r]
convolves image with a Laplacian-of-Gaussian kernel of pixel radius r.
LaplacianGaussianFilter[image, {r, Sigma}]
convolves image with a Laplacian-of-Gaussian kernel of radius r and standard deviation Sigma.
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:
In[1]:=
Click for copyable input
Out[1]=
 
Laplacian of Gaussian applied to a grayscale image:
In[1]:=
Click for copyable input
Out[1]=
 
Find the edges of an object, showing the inside of the edge in darker tones and the outside in brighter tones.
In[1]:=
Click for copyable input
Out[1]=
In[2]:=
Click for copyable input
Out[2]=
 
Laplacian of Gaussian filter of a numeric array:
In[1]:=
Click for copyable input
Out[1]=
Apply a LoG filter to the output of a distance transform:
New in 7