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Watermarking Systems Engineering: Enabling Digital Assets by Mauro Barni

By Mauro Barni

The expansion of the net has fueled the call for for more desirable watermarking and information hiding applied sciences and has encouraged study into new how you can enforce watermarking platforms within the actual international. Watermarking platforms Engineering: allowing electronic resources safety and different purposes offers the rules of watermarking method layout and discusses applied sciences in details concealment and restoration. It highlights the necessities and demanding situations of functions in safety, image/video indexing, hidden communications, picture captioning, and transmission blunders restoration and concealment. It explains electronic watermarking applied sciences, and gives an realizing of latest ways and purposes, laying the foundation for advancements within the box.

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Extra info for Watermarking Systems Engineering: Enabling Digital Assets Security and Other Applications

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E. e. only part of the watermark is damaged. The main application of fragile watermarking is data authentication, where watermark loss or alteration is taken as an evidence that data has been tampered with, whereas the recovery of the information contained within the data is used to demonstrate data origin10. 9 Just to give an example, consider a situation in which the ownership of a digital document is demonstrated by verifying that the owner name is hidden within the document by means of a given watermarking technique.

A video frame, rather than on the whole signal. Though cryptography may provide a valuable mean for digital signal authentication, the development of alternative approaches is desirable in order to deal with some potential weaknesses of the cryptographic approach. Let us consider, for example, the digest-based approach outlined previously. g. by defining a proper format allowing the usage of authentication tools (see for example the MPEG21 effort of ISO). In this way, however, the possibility of authenticating the signal is constrained to the use of a particular format, thus making impossible to use a different format, or to authenticate the signal after digital-to-analog conversion.

Johnson and S. Katzenbeisser [113]. e. the art of keeping information secret by hiding it within innocuous messages, is as old as the human kind, a renewed interest in digital data hiding was recently triggered by its potential use as an effective mean for copyright protection of multimedia data exchanged in digital form. e. g. data owner or its allowed uses. In addition to be imperceptible, the code should be robust, in that it should survive any possible manipulations applied to the data, at least until the degradation introduced in the attempt to remove it does not reduce significantly the commercial value of data.

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