# pgmnoise > Generate white noise. > More information: <https://netpbm.sourceforge.net/doc/pgmnoise.html>. - Generate a PGM image containing white noise: `pgmnoise {{width}} {{height}} > {{path/to/output.pgm}}` - Specify the seed for the pseudo-random number generator: `pgmnoise {{width}} {{height}} -randomseed {{value}} > {{path/to/output.pgm}}`