A dynamic watermarking scheme for quantum images using quantum wavelet transform

Authors:
Xian-Hua Song;Shen Wang;Shuai Liu;Ahmed A. Abd El-Latif;Xia-Mu Niu
Affiliations:
Department of Computer Science and Technology, Harbin Institute of Technology, Harbin, China 150080 and Harbin University of Science and Technology, Harbin, China 150080;Department of Computer Science and Technology, Harbin Institute of Technology, Harbin, China 150080;Harbin University of Science and Technology, Harbin, China 150080;Department of Computer Science and Technology, Harbin Institute of Technology, Harbin, China 150080 and Department of Mathematics, Faculty of Science, Menoufia University, Shebin El-Koom, Egypt 32 ...;Department of Computer Science and Technology, Harbin Institute of Technology, Harbin, China 150080
Venue:
Quantum Information Processing
Year:
2013

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Abstract

In this paper, a novel watermarking scheme based on quantum wavelet transform (QWT) is proposed. Firstly, the wavelet coefficients are extracted by executing QWT on quantum image. Then, we utilize a dynamic vector for controlling embedding strength instead of a fixed parameter for embedding process in other schemes. Analysis and results show that the proposed dynamic watermarking scheme has better visual quality under a higher embedding capacity and outperforms the existing schemes in the literature.