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12 November 2001 Standards-compliant watermarking for access management
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Proceedings Volume 4518, Multimedia Systems and Applications IV; (2001)
Event: ITCom 2001: International Symposium on the Convergence of IT and Communications, 2001, Denver, CO, United States
We present standards-compliant visible watermarking schemes for digital images and video in DCT-based compressed formats. The watermarked data is in the same compressed format as the original and can be viewed with standard tools and applications. Moreover, for most of the schemes presented, the watermarked data has exactly the same compressed size as the original. The watermark can be inserted and removed using a key for applications requiring content protection. The watermark application and removal algorithms are very efficient and exploit some features of compressed data formats (such as JPEG and MPEG) which allow most of the work to be done in the compressed domain.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Viresh Ratnakar and Onur G. Guleryuz "Standards-compliant watermarking for access management", Proc. SPIE 4518, Multimedia Systems and Applications IV, (12 November 2001);

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