Logistic Map-Based Fragile Watermarking for Pixel Level Tamper Detection and Resistance

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Shanmugatha "Shan" Suthaharan, Associate Professor (Creator)
The University of North Carolina at Greensboro (UNCG )
Web Site: http://library.uncg.edu/

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.

Additional Information

EURASIP Journal on Information Security Volume 2010, Article ID 829516, 7 pages
Language: English
Date: 2010
Digital security, Images, Tampering, Watermarks, Algorithms

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