Watermarking based on discrete wavelet transform and q-deformed chaotic map
Chaos, Solitons and Fractals
6 - 17
Item Usage Stats
MetadataShow full item record
Hierarchy of one-dimensional ergodic chaotic maps with Tsallis type of q-deformation are studied. We find that in the chaotic region, these maps with q-deformation are ergodic as the Birkhoff ergodic theorem predicts. q-deformed maps are defined as ratios of polynomials of degree N. Hence, by using the Stieltjes transform approach (STA), invariant measure is proposed. In addition, considering Sinai-Ruelle-Bowen (SRB) measure, Kolmogorov-Sinai (KS) entropy for q-deformed maps is calculated analytically. The new q-deformed scheme have ability to keep previous significant properties such as ergodicity, sensitivity to initial condition. By adding q-parameter to the hierarchy in order increase the randomness and one-way computation, we present a new scheme for watermarking. The introduced algorithm tries to improve the problem of failure of encryption such as small key space, encryption speed and level of security. To illustrate the effectiveness of the proposed scheme, some security analyses are presented. By considering the obtained results, it can be concluded that, this scheme have a high potential to be adopted for watermarking. It can be concluded that, the proposed novel watermarking scheme for image authentication can be applied for practical applications. © 2017 Elsevier Ltd
KeywordsDigital image watermarking
Pseudo random sequence
q-deformed chaotic map
Discrete wavelet transforms
Digital image watermarking
Embargo Lift Date2019-11-01
Published Version (Please cite this version)http://dx.doi.org/10.1016/j.chaos.2017.07.020
Showing items related by title, author, creator and subject.
Yücel, Z.; Özgüler, A. B. (Elsevier, 2009-07-17)In order to identify the owner and distributor of digital data, a watermarking scheme in frequency domain for multimedia files is proposed. The scheme satisfies the imperceptibility and persistence requirements and it is ...
Yücel, Zeyep; Özgüler, A. Bülent (IEEE, 2005-12)In this paper a new method for digital image watermarking based on Zero Assigned Filter Banks and Embedded Zero Tree Wavelet (EZW) algorithm is presented. An image is partitioned into 128 × 128 subblocks and each block is ...
Yücel, Zeynep (Bilkent University, 2005)A watermarking scheme for audio and image files is proposed based on wavelet decomposition via zero assigned filter banks. Zero assigned filter banks are perfect reconstruction, conjugate quadrature mirror filter banks ...