I failed to mention this in my original comment, but it's also not ASCII art as it only uses one character. My understanding of ASCII art is that it using different characters to form an image. Just look at every ASCII art from Wikipedia's page (http://en.wikipedia.org/wiki/ASCII_art). Different characters contribute different visual aspects (like the edges). By just using one character it's essentially a dot matrix image. I don't consider a dot matrix image ASCII art (even though it uses the ASCII character ".").