Digital image watermarking scheme in wavelet domain using chaotic encryption

Khare, Priyank; Verma, Alok; Srivastava, Vinay Kumar

doi:10.1109/sces.2014.6880072

Cited by 18 publications

(8 citation statements)

References 8 publications

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“…Table 1 illustrates the PSNR values. As can be clearly seen from the table, DWT-SVD based chaotic scheme outperforms [21] and [35]. The improved imperceptibility provided by the scheme is a result of using SVD in the watermarking schemes.…”

Section: Simulation Resultsmentioning

confidence: 84%

“…In Experiment 1, DWT-SVD based chaotic watermarking scheme is compared to the methods in [21] and [35] to emphasize the contribution of SVD to the watermarking scheme. In [21], a DWT based chaotic digital watermarking scheme is proposed.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…In [21], a DWT based chaotic digital watermarking scheme is proposed. DCT is performed on the copyright protection scheme in [35].…”

Section: Simulation Resultsmentioning

confidence: 99%

“…The shiftvariance of DWT causes inaccurate extraction of the cover image and the watermark. This problem is avoided by using RDWT also referred as -undecimated DWT‖, -overcomplete DWT‖ and -algorithme à trous‖ [31] , the low-band and high-band output coefficients at level j are denoted by c j and d j , respectively [21].…”

Section: A Rdwtmentioning

confidence: 99%

“…The proposed method is compared to existing chaos based digital image watermarking schemes to show its superiority. In [21], a DWT based digital image watermarking scheme using chaotic encryption is given. Quality of the watermarked image is measured by NC and PSNR.…”

Section: Introductionmentioning

confidence: 99%

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Robust Chaotic Digital Image Watermarking Scheme based on RDWT and SVD

Çetinel

Çerkezi²

2016

IJIGSP

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Abstract-In recent years chaos has received a great deal of attention from the researches specialized in communications, signal and image processing. The complexity property of the chaotic signal raised the idea of using such signals in secure communications. Digital image watermarking is a technique mainly developed for copyright protection and image authentication and it can be considered as one application area of the secure communication. In this study, a chaos based digital image watermarking algorithm based on redundant discrete wavelet transform (RDWT) and singular value decomposition (SVD) is proposed. To the best of our knowledge, there do not exist any digital watermarking scheme combining RDWT, SVD and chaos. Robustness and invisibility of the proposed method are improved by using the logistic mapping function to generate a chaotic image matrix serving as the watermark that is used to modify the singular values of the low frequency sub-band of the cover image obtained by applying RDWT. The method is shown to be robust against both the geometrical and image processing attacks and to provide better watermark concealment via computer simulations. Using a chaotic signal as the watermark allows the proposed scheme to meet the security requirements as well.

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Section: Simulation Resultsmentioning

confidence: 84%