Logistic map-based fragile watermarking for pixel level tamper detection and resistance

Authors:
Shan Suthaharan
Affiliations:
Department of Computer Science, University of North Carolina at Greensboro, Greensboro, NC
Venue:
EURASIP Journal on Information Security
Year:
2010

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Abstract

An efficient fragile image watermarking technique for pixel level tamper detection and resistance is proposed. It uses five most significant bits of the pixels to generate watermark bits and embeds them in the three least significant bits. The proposed technique uses a logistic map and takes advantage of its sensitivity property to a small change in the initial condition. At the same time, it incorporates the confusion/diffusion and hashing techniques used in many cryptographic systems to resist tampering at pixel level as well as at block level. This paper also presents two new approaches called nonaggressive and aggressive tamper detection algorithms. Simulations show that the proposed technique can provide more than 99.39% tamper detection capability with less than 2.31% false-positive detection and less than 0.61% false-negative detection responses.