Mathematica 9 is now available
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION.
Wolfram Mathematica Documentation Center
DOCUMENTATION CENTER SEARCH
New to Mathematica? Find your learning path »
Mathematica > Data Manipulation > Image Processing & Analysis > Image Filtering & Neighborhood Processing > LaplacianFilter >
BUILT-IN MATHEMATICA SYMBOLSee Also »|More About »

LaplacianFilter

LaplacianFilter
convolves image with a range r Laplacian kernel.
LaplacianFilter
uses ranges in the vertical and horizontal directions.
LaplacianFilter
applies Laplacian filtering to an array of data.
MORE INFORMATION
  • In LaplacianFilter, data can be an array of any rank, and can contain symbolic as well as numerical entries.
EXAMPLESCLOSE ALL
Basic Examples   (3)
Use Laplacian filtering to detect edges in a color image:
Gradient filtering of a binary image:
Apply a Laplacian filter to a vector:
Use Laplacian filtering to detect edges in a color image:
In[1]:=
Click for copyable input
Out[1]=
 
Gradient filtering of a binary image:
In[1]:=
Click for copyable input
Out[1]=
In[2]:=
Click for copyable input
Out[2]=
 
Apply a Laplacian filter to a vector:
In[1]:=
Click for copyable input
Out[1]=
Applications   (1)
Subtract the Laplacian filter from the original image to emphasize details:
Neat Examples   (1)
Create a random texture from uniform noise:
New in 7
Ask a question about this page  |  Suggest an improvement  |  Leave a message for the team
Format:   HTML  |  CDF