Digital watermarking by DCT coefficient manipulation

The advent of digital multimedia and worldwide area networks such as the Internet facilitates efficient distribution, reproduction and manipulation over networked information systems. To discourage the unauthorized copying and distributing of electronic documents, new tools are needed for their...

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Bibliographic Details
Main Author: Sun, Xiaodi
Format: Others
Language:English
Published: 2009
Online Access:http://hdl.handle.net/2429/11880