Steganography capacity: a steganalysis perspective

Rajarathnam Chandramouli; Nasir D. Memon

doi:10.1117/12.479732

20 June 2003 Steganography capacity: a steganalysis perspective

Rajarathnam Chandramouli, Nasir D. Memon

Proceedings Volume 5020, Security and Watermarking of Multimedia Contents V; (2003) https://doi.org/10.1117/12.479732
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States

Abstract

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 these definitions are described. Some numerical examples are also presented to illustrate the need for this investigation.

Citation Download Citation

Rajarathnam Chandramouli and Nasir D. Memon "Steganography capacity: a steganalysis perspective", Proc. SPIE 5020, Security and Watermarking of Multimedia Contents V, (20 June 2003); https://doi.org/10.1117/12.479732

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