Philip Bateman wrote:Steganography is the art of hiding information within other information in such a way that it is hard or even impossible to tell that it is there. There are many different carriers for steganography but the most popular is digital images. Recently, there it has been rumoured that terrorist cells are using steganography to hide their secret plans, and subsequently it is becoming increasingly important to detect the images that contain steganography such that we can reduce foul-play. This counter-technique is known as steganalysis.

In contrast to the magnitude of papers that analyse either steganography or steganalysis techniques, this paper provides in-depth descriptions of both. It also offers a chance to put the theory into practice by way of a piece of software designed to maximise learning in the fields. The paper can therefore be split into two parts: Research, and Software Development.