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Block based embedding of encrypted watermarks using singular value decomposition |
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| Authors: | Rania A Ghazy Mohammed Amoon Hanaa A Abdallah Nawal A El-Fishawy Mohiy M Hadhoud Moawad I Dessouky Saleh A Alshebeili Fathi E Abd El-Samie |
| Institution: | 1. Department of Electronics and Electrical Communications, Faculty of Electronic Engineering, Menoufia University, 32952 Menouf, Egypt;2. Department of Computer Engineering, Faculty of Electronic Engineering, Menoufia University, 32952 Menouf, Egypt;3. Department of Computer Science, King Saud University, Riyadh, Saudi Arabia;4. Faculty of Engineering, Zagazig University, Zagazig;5. Department of Information Technology, Faculty of Computers and Information, Menoufia University, 32511, Shebin Elkom, Egypt;6. Electrical Engineering Department, KACST-TIC in Radio Frequency and Photonics for the e-Society (RFTONICS), King Saud University, Riyadh, Saudi Arabia;g KACST-TIC in Radio Frequency and Photonics for the e-Society (RFTONICS), King Saud University, Riyadh, Saudi Arabia |
| Abstract: | Watermarking is a solution to the problem of copyright protection of multimedia documents over the Internet. This paper presents a block based watermarking scheme using the singular value decomposition (SVD) algorithm to embed encrypted watermarks into digital images. The paper compares between the traditional method of Liu and the proposed method for embedding encrypted watermarks. Also, a permutation based encryption algorithm and a diffusion based encryption algorithm are compared as the watermark encryption algorithms. Experimental results show that the proposed method is superior to the traditional method of Liu for embedding encrypted watermarks and extracting them efficiently under attacks. Results also show that it is preferred to use permutation based encryption algorithms than diffusion based encryption algorithms for watermark encryption due to their lower sensitivity to attacks. |
| Keywords: | Singular value decomposition Watermarking Encryption Watermark Embedding Watermark detection |
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