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10 September 2024 Blind watermarking of colour images based on visual cryptography and Schur decomposition
Chunqin Gao, Jinyu Wei, Jie Luo, Xianfeng Guo
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Proceedings Volume 13257, International Conference on Advanced Image Processing Technology (AIPT 2024); 132570G (2024) https://doi.org/10.1117/12.3041324
Event: International Conference on Advanced Image Processing Technology (AIPT 2024), 2024, Chongqing, China
Abstract
Digital watermarking systems based on Third-party Authentication Authorities (TPA) provide exceptional usability and efficacy in copyright protection. Yet, they encounter security and trust issues. A digital blind watermarking technique for color photos integrating Schur decomposition and Visual Cryptography (VC) is presented to improve watermark robustness and TPA's security. Watermark data is first preprocessed using (2, 2) VC to create two shared images. Using this method, two shared images must be superposed to recover the original watermark. The numerical stability of Schur decomposition strengthens the watermark's resistance against geometric attacks. Tests validate the system's enhanced security and resistance to common threats.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Chunqin Gao, Jinyu Wei, Jie Luo, and Xianfeng Guo "Blind watermarking of colour images based on visual cryptography and Schur decomposition", Proc. SPIE 13257, International Conference on Advanced Image Processing Technology (AIPT 2024), 132570G (10 September 2024); https://doi.org/10.1117/12.3041324
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KEYWORDS
Digital watermarking
Visualization
Cryptography
Zoom lenses
Computer security
Matrices
Copyright
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