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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/17174

Title: Methodologies in Digital Watermarking: Robust and Reversible Watermarking Techniques for Authentication, Security and Privacy Protection
Authors: Guo, Xin Cindy
Advisor: Hatzinakos, Dimitrios
Department: Electrical and Computer Engineering
Keywords: Digital Watermarking
Image Authentication
Privacy Protection
Issue Date: 24-Feb-2009
Abstract: The advances in recording, editing and broadcasting multimedia content in digital form motivate the protection of digital information against illegal use, manipulation and distribution. This thesis work focuses on one aspect of digital rights management (DRM), namely digital watermarking. Specifically, we study its use in copy protection, tamper detection and information hiding. We introduce three application-specific digital watermarking techniques. The first two algorithms, based on embedding film grain like noise and signal dependent watermarks, respectively, are designed for authentication applications. The advantage is that they are able to detect malicious tampering while being robust against content-preserving processes such as compression, filtering and additive noise. The third method, a reversible watermarking technique, is designed so that sensitive personal information can be embedded in medical images. Simulation results show that our proposed method outperforms other approaches in the available literature in terms of image quality and computational complexity.
URI: http://hdl.handle.net/1807/17174
Appears in Collections:Master
The Edward S. Rogers Sr. Department of Electrical & Computer Engineering - Master theses

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