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

#CMT# #/CMT# 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. #CMT# : #/CMT# 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. #CMT#USE : #/CMT# Embedder i.e. watermark embedder, for embedding a watermark in a representation of input information. #CMT#ADVANTAGE : #/CMT# The embedder effectively embeds and facilitates the detection of the reusable watermark in the improved presentation of the input information with improved security. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a block representation of a watermark embedder.'(Drawing includes non-English language text)' 500 : Embedder 510, 534 : Input information representation 520 : Embedding parameter-determinator 522 : Deviation function 524 : Initial valve 526 : Embedded parameter 530 : Water mark-adder 532 : Embedded water mark.