EMBEDDER FOR EMBEDDING A WATERMARK IN A REPRESENTATION OF INFORMATION, DETECTOR FOR DETECTING A WATERMARK IN A REPRESENTATION OF INFORMATION, METHOD AND COMPUTER PROGRAMME

摘要

The embedder (500) has an embedding parameter-determinator (520) applying a deviation function (522) to an initial valve (524) and obtaining an embedded parameter (526) to embed an embedded water mark (532) in input information representation (510, 534). A water mark-adder (530) provides the input information representation with the embedded water mark under the embedding parameter, where the embedder frequently applies the deviation function to the initial valve and obtains the embedding parameter. The embedding parameter-determinator receives an index parameter. Independent claims are also included for the following: (1) a detector for detecting water mark in an input information representation, comprising a detection parameter-determinator (2) a method for embedding a water mark in an input information determinator (3) a computer program for executing a method for embedding a water mark in an input information determinator.