ID 2200/2008

           Reversible watermarking is a novel research topic that extends the use of copyrighting, authentication, annotation and meta-data embedding for special domains where no loss of information is accepted as, for instance, medicine, legal, military. the major objectives of the project focus on the embedding bit-rate and on reversible watermarking extensions.

           Thus, the project aims to provide fundamental research on the theoretical embedding bit-rate bounds and on a unified framework for the high-capacity reversible watermarking and to provide advanced research on high-capacity reversible watermarking methods. regarding this latter topic, the reversible contrast method will be improved and novel methods will be developed, too. several reversible watermarking extensions will be given either for different image types (color, video or 3d), i.e., dealing with different constraints, or for some new theoretical approaches as the reversible-robust one.

           The project will bring methodological contributions on the comparison of watermarking methods and on the quality/bit-rate evaluation procedure. The high bit-rate provided by our methods as well as their low mathematical complexity should yield a change of paradigm in watermarking, namely the extension of reversible watermarking from special to ordinary domains. In this context, the reversible watermarking provides the required capabilities at low or zero distortion.