http://www.emgu.com
-1, 0 or +1. sign of the laplacian at the point. can be used to speedup feature comparison (normally features with laplacians of different signs can not match)

Namespace: Emgu.CV.Structure
Assembly: Emgu.CV (in Emgu.CV.dll) Version: 2.3.0.1416 (2.3.0.1416)

Syntax

C#
public int laplacian
Visual Basic
Public laplacian As Integer
Visual C++
public:
int laplacian

See Also