pamdice

Slice a Netpbm image vertically or horizontally. See also: pamundice. More information: https://netpbm.sourceforge.net/doc/pamdice.html.

• Slice a Netpbm image such that the resulting tiles have the specified height and width:

pamdice -outstem path/to/filename_stem -height value -width value path/to/input.ppm

• Make the produced pieces overlap by the specified amount horizontally and vertically:

pamdice -outstem path/to/filename_stem -height value -width value -hoverlap value -voverlap value path/to/input.ppm