pamarith

Apply a binary function on two Netpbm images. See also: pamfunc. More information: https://netpbm.sourceforge.net/doc/pamarith.html.

• Apply the specified binary function pixel-wise on the two specified images (which must be of the same size):

pamarith -add|subtract|multiply|divide|difference|minimum|maximum|… path/to/image1.pam|pbm|pgm|ppm path/to/image2.pam|pbm|pgm|ppm