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Articles 31 - 31 of 31
Full-Text Articles in Engineering
Data Hiding In Multimedia - Theory And Applications, Mahalingam Ramkumar
Data Hiding In Multimedia - Theory And Applications, Mahalingam Ramkumar
Dissertations
Multimedia data hiding or steganography is a means of communication using subliminal channels. The resource for the subliminal communication scheme is the distortion of the original content that can be tolerated. This thesis addresses two main issues of steganographic communication schemes:
1. How does one maximize the distortion introduced without affecting fidelity of the content?
2. How does one efficiently utilize the resource (the distortion introduced) for communicating as many bits of information as possible? In other words, what is a good signaling strategy for the subliminal communication scheme?
Close to optimal solutions for both issues are analyzed. Many techniques …