Man Page for vtkImageLaplacian Table of Contents NAME vtkimageLaplacian - Computes divergence of gradient. The operation is the same as taking the divergence after a gradient.
Boundaries are handled, so the input is the same as the output.
The output is always float. Dimensionality determines how the input regions are interpreted. This method computes the input extent necessary to generate the output. This execute method handles boundaries. Pixels are just replicated to get values out of extent.