Steganography capacity: a steganalysis perspective

Rajarathnam Chandramouli, Nasir D. Memon, Edward J. Delp III, Ping W. Wong
2003 Security and Watermarking of Multimedia Contents V  
Two fundamental questions in steganography are addressed in this paper, namely, (a) definition of steganography security and (b) definition of steganographic capacity. Since the main goal of steganography is covert communications, we argue that these definitions must be dependent on the type of steganalysis detector employed to break the embedding algorithm. We propose new definitions for security and capacity in the presence of a steganalyst. The intuition and mathematical notions supporting
more » ... ese definitions are described. Some numerical examples are also presented to illustrate the need for this investigation.
doi:10.1117/12.479732 dblp:conf/sswmc/ChandramouliM03 fatcat:nv4fpnfpovbezay55kifjx5y2m