ppmspread

Displace the pixels in a PPM image by a randomized amount. More information: https://netpbm.sourceforge.net/doc/ppmspread.html.

• Displace the pixels in a PPM image by a randomized amount that is at most a:

ppmspread {{a}} {{path/to/input_file.ppm}} > {{path/to/output_file.ppm}}

• Specify a seed to a the pseudo-random number generator:

ppmspread {{a}} {{path/to/input_file.ppm}} {{[-r|-randomseed]}} {{seed}} > {{path/to/output_file.ppm}}