Reversible watermarking using two-way decodable codes

Bijan G. Mobasseri; Domenick Cinalli

doi:10.1117/12.526135

22 June 2004 Reversible watermarking using two-way decodable codes

Bijan G. Mobasseri, Domenick Cinalli

Proceedings Volume 5306, Security, Steganography, and Watermarking of Multimedia Contents VI; (2004) https://doi.org/10.1117/12.526135
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

Abstract

Traditional variable length codes(VLC) used in compressed media are brittle and suffer synchronization loss following bit errors. To counter this situation, resynchronizing VLCs(RVLC) have been proposed to help identify, limit and possibly reverse channel errors. In this work we observe that watermark bits are in effect forced bit errors and are amenable to the application of error-resilient techniques. We have developed a watermarking algorithm around a two-way decodable RVLC. The inherent error control property of the code is now exploited to implement reversible watermarking in the compressed domain. A new decoding algorithm is developed to reestablish synchronization that is lost as a result of watermarking. Resynchronization is achieved by disambiguating among many potential markers that are abundantly emulated in data. The algorithm is successfully applied to several MPEG-2 streams.

Citation Download Citation

Bijan G. Mobasseri and Domenick Cinalli "Reversible watermarking using two-way decodable codes", Proc. SPIE 5306, Security, Steganography, and Watermarking of Multimedia Contents VI, (22 June 2004); https://doi.org/10.1117/12.526135

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