Patent ID: 7895439
Filing Date: 2011-02-22
Classification: G06T,H04N

Abstract:
1. A material processing system for processing material including a watermark, the material having been watermarked by combining a watermark code word with predetermined components of the material, the system comprising: a remover for automatically removing the watermark from the material, independently of a user in a closed system to which the user does not have access, a processor programmed to process the material from which the watermark has been removed, and an inserter for automatically inserting a watermark into the processed material independently of the user in a closed system to which the user does not have access, wherein the remover is arranged to receive data enabling the removal of the watermark code word from the material to be processed, the enabling data indicating the predetermined components of the material with which the watermark code word has been combined, wherein the material has been watermarked by encrypting the watermark code word before the watermark code word is combined with the predetermined components of the material, and the enabling data includes an encryption key for decrypting the encrypted watermark, the remover configured to remove automatically the encrypted watermark from the material and to decrypt the encrypted watermark.