Install farbfeld by entering the following commands in the terminal:
sudo apt update sudo apt install farbfeld
Description:
lossless image format designed to be parsed and piped easily
Farbfeld is a lossless image format designed to be parsed and piped easily. It is designed to be as simple as possible, leaving the task of compression to outside tools, beating PNG's filesize in many cases. . This package contains tools for converting between farbfeld format and other image formats (png, jpeg, ppm, pam, gif).
Homepage: http://tools.suckless.org/farbfeld
Version: 3-5
Section: universe/graphics