ppmtv
Apply TV scan line effect to images
TLDR
Apply TV scan line effect
$ ppmtv [input.ppm] > [output.ppm]
SYNOPSIS
ppmtv [file]
DESCRIPTION
ppmtv applies a CRT television scan line effect to PPM images, simulating the appearance of an interlaced TV display. Part of Netpbm toolkit.
SEE ALSO
ppmquant(1), pamdeinterlace(1)