EDGESENH filter
Edge enhancement filter is a standard linear filter which works in a 3x3 environment. The values in the matrix are:
|
-1 |
-1 |
-1 |
|
|
-1 |
16 |
-1 |
|
|
-1 |
-1 |
-1 |
Gain factor = 1/8 = 0.125
The edge enhancement filter returns the Original Value - Laplace filter.
This filter enhances the total image and detects linear features like roads, geological faults etc. in an image.
The user may create its own edges enhancement filter with a slightly smaller or larger center value than the standard EDGESENH filter, as long as the sum of the matrix values multiplied with the gain factor remains 1.
See also: