Imperceptible Watermarking Technique using Arnold's Transform and Cross Chaos Map in DCT Domain

Imperceptible Watermarking Technique using Arnold's Transform and Cross Chaos Map in DCT Domain

Digital watermarking is the process of embedding secret information into a digital signal which may be used to verify its authenticity or the identity of its owners. In this paper, we have taken image as the medium of watermarking. Here, we have discussed an imperceptible watermarking technique by u...

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Veröffentlicht in:International journal of computer applications 2012-01, Vol.55 (15), p.50-53
Hauptverfasser: Pradhan, Chittaranjan, Saxena, Vilakshan, Bisoi, Ajay Kumar
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Sprache:eng
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Algorithms
Chaos theory
Digital
Encryption
Signal to noise ratio
Transforms
Watermarking
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Saxena, Vilakshan
Bisoi, Ajay Kumar
description Digital watermarking is the process of embedding secret information into a digital signal which may be used to verify its authenticity or the identity of its owners. In this paper, we have taken image as the medium of watermarking. Here, we have discussed an imperceptible watermarking technique by using double encryptions in DCT domain. For the encryption process, Arnold's transform and Cross chaos map are used. Like other algorithms, this one is also evaluated by Peak signal to noise ratio (PSNR). From the experimental results, it can be proved that this algorithm gives better PSNR value, which makes the algorithm to imperceptible.
doi_str_mv 10.5120/8835-3053
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source EZB-FREE-00999 freely available EZB journals
subjects Algorithms
Chaos theory
Digital
Encryption
Signal to noise ratio
Transforms
Watermarking
title Imperceptible Watermarking Technique using Arnold's Transform and Cross Chaos Map in DCT Domain
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