A Survey on Steganography and Steganalysis Techniques in Secret Communication

This paper presents a survey on classical steganographic algorithms and detection techniques (i.e.,steganalysis techniques) along with their mathematical definitions. A little to no studies found thattried to provide mathematical definitions of these algorithms. Wheras, mathematical definitions andexamples of different existing algorithms could help researchers to develop better understand howprevious algorithms and their limitations. In-depth understaning is important to improve existing anddevelop new algorithms. Also, this paper presents a comparison chart of existing algorithms to showadvantages and disadvantages of each steganographic algorithm in terms of steganalysis or detectiontechniques.