paper 150403080341

Abstract

Data hiding methods are realised in the form of steganographic communication channels and in the form of digital content labelled with watermark while employing as the carrying layer among the others: speech signal, audio, video and photos. Detection of the fact of additional data hiding is hindered among the others because of constantly improved and increasingly advanced methods for embedding and extraction of hidden data. In the article there is presented the concept of the program container based on which the filtration of the above- mentioned signals is carried out in order to remove the hidden data. The purpose of multimedia filter action is to remove from the original signal (carrier) the hidden data or its significant degradation, but in such manner that the original signal itself is not degraded significantly.

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Zbigniew Piotrowski