Miscellaneous spatial processing

INTERSECT

Tally pixel value n-tuples of n band image set (B)

SPREAD

Generate buffer zones around pixels having specified value (B)

SURFACE

Fit gridded surface to elevation-dependent observations from scattered stations (P)

TOPO

Compute slope, aspect, or contours of an image (B)

WINDOP

Subsample image using neighborhood mean, max, or min (B)