SPIPTM has the following spatial filters implemented in the Filter module, which will be described in the following.
Gaussian Standard deviation Smoothing
Highpass (Unicrisp - Laplacian)
Laplacian of the Gaussian /Mexican Hat
Gradient (Roberts, Prewitt, Sobel, Pixel Difference )
ISO 11562 Gaussian profile filter for surface analysis
ISO 13565 Deep Valley - Gaussian profile filter for surface analysis
Median filtering, for noise removal
Outlier Objects Filter for recovery of areas covered by contamination and spike elimination