pgmenhance(1) on Linux
The text 000ab883e349, as Debian 13 (Trixie), Debian 12 (Bookworm) shipped it.
edge-enhance a PGM image
Flags it lists
-
-N
The text 000ab883e349, as Debian 13 (Trixie), Debian 12 (Bookworm) shipped it.
edge-enhance a PGM image
-N