LAPLACE filter

The Laplace filter is a standard linear filter which works in a 3x3 environment. The values in the matrix are:

  

 1

 1

 1

 1

-8

 1

 1

 1

 1

  

Gain factor 1.

The edges enhancement EDGESENH filter, combines input map values with the output of the Laplace filter.

See also: