Image steganalysis

Abstract

No matter how unbreakable an encryption algorithm is, the encrypted messages will attract an adversary's awareness. Steganography can resolve this difficulty by embedding secret data into an innocuous cover medium, such as image, video, text, audio, etc. The transmission of the innocuous medium will not arouse much suspicion. Therefore, whereas cryptography only protects the contents of the secret message, steganography conceals the very existence of secret information, making the secret communications imperceptible [6]. © 2010 Springer-Verlag Berlin Heidelberg.