A Docker image containing the Farbfeld tools in PATH with a bash shell.
Example usage. Assume ~/Downloads/convert
is a path on the host with some example images:
docker build -t=wtjones/farbfeld .
docker run --rm -it -v ~/Downloads/convert:/data --name farbfeld wtjones/farbfeld bash
bash-4.3# png2ff < example.png > example.ff