ShellPic is a program that can be used to view images at any terminal. It renders the image using ASCII art and in color.
ShellPic is not packaged for Ubuntu yet. So, it can be installed from PyPI instead:
$ sudo pip install ShellPic
After installation, it can be invoked directly on any image:
$ shellpic foo.jpg
Tried with: ShellPic 1.6 and Ubuntu 14.04