Convert an image as if it was displayed on a CRT display. Usage:
scanlines INFILE [OUTFILE]
If OUTFILE is missing, a suffix is appended to INFILE for the new file name. The result is saved as a PNG file.
To quikly view the result after a conversion (in case you tweak various parameters of the program), you can use feh (an image viewer) that supports a lot of command line options:
sudo apt install feh
cargo run -- example.png out.png && feh --force-aliasing out.png