pamoil
Turn a PAM image into an oil painting.
TLDR
Turn a PAM image into an oil painting
$ pamoil [path/to/input_file.pam] > [path/to/output_file.pam]
Consider a neighborhood of N pixels for the "smearing" effect
$ pamoil -n [N] [path/to/input_file.pam] > [path/to/output_file.pam]