ppmquant(1) on Linux
The text b34d3ac22c6f, as Debian 13 (Trixie), Debian 12 (Bookworm) shipped it.
quantize the colors in a PPM image down to a specified number
The text b34d3ac22c6f, as Debian 13 (Trixie), Debian 12 (Bookworm) shipped it.
quantize the colors in a PPM image down to a specified number