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An improved fragile watermarking algorithm for JPEG images

In this paper a new fragile watermarking algorithm is proposed that is built upon the cryptanalysis of the CWSA algorithm (Chaotic Watermarking Scheme for Authentication of JPEG Images – Wang et al. [14]). The proposed algorithm preserves the advantages of CWSA, but is robust against cryptanalysis,...

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Published in:International journal of electronics and communications 2015-12, Vol.69 (12), p.1783-1794
Main Authors: Caragata, Daniel, El Assad, Safwan, Luduena, Mauricio
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creator Caragata, Daniel
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description In this paper a new fragile watermarking algorithm is proposed that is built upon the cryptanalysis of the CWSA algorithm (Chaotic Watermarking Scheme for Authentication of JPEG Images – Wang et al. [14]). The proposed algorithm preserves the advantages of CWSA, but is robust against cryptanalysis, faster and less perceptible. It uses two chaotic maps: the piecewise linear chaotic map and a chaotic generator composed of two perturbed recursive filters with a nonlinear function, the Skew Tent map. Experimental results show that the proposed algorithm provides good performances in terms of security, imperceptibility, speed and resistance to cryptographic attacks.
doi_str_mv 10.1016/j.aeue.2015.09.005
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ispartof International journal of electronics and communications, 2015-12, Vol.69 (12), p.1783-1794
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subjects Chaotic functions
Cryptanalysis
Engineering Sciences
Fragile watermarking
Markov chains
Signal and Image processing
title An improved fragile watermarking algorithm for JPEG images
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