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LaplacianGaussianFilter

LaplacianGaussianFilter
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
applies Laplacian-of-Gaussian filtering to an array of data.
Method"Bessel"how to determine elements of the Gaussian matrix
Padding"Fixed"padding method
WorkingPrecisionAutomaticthe precision to use
"Standardization"Truewhether to rescale and shift the Gaussian matrix to account for truncation
  • In LaplacianGaussianFilter, 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]=
 
Laplacian of Gaussian filter of a numeric array:
In[1]:=
Click for copyable input
Out[1]=
Detect edges by finding the zero crossings of a LoG filtered image:
Apply a LoG filter to the output of a distance transform:
New in 7 | Last modified in 8