Stéganô is a basic Python Steganography module. It uses the Python Imaging Library (PIL). Stéganô implements two methods of hiding: using the red portion of a pixel to hide ASCII messages, and using the Least Significant Bit (LSB) technique.
qxv is an image viewer whose interface is key-to-key compatible with the classic xv program. It is meant to replace xv, which is old, unmaintained, not Free Software, and therefore not shipped with most software distributions anymore.