pamflip
Flip or rotate a PAM or PNM image.
TLDR
Rotate the input image counter-clockwise for a specific degree
$ pamflip -rotate[90|180|270] [path/to/input.pam] > [path/to/output.pam]
Flip left for right
$ pamflip -leftright [path/to/input.pam] > [path/to/output.pam]
Flip top for bottom
$ pamflip -topbottom [path/to/input.pam] > [path/to/output.pam]
Flip the input image on the main diagonal
$ pamflip -transpose [path/to/input.pam] > [path/to/output.pam]
