发明名称 Digital watermarking
摘要 Digital watermarking of data, including image, video and audio data, is performed by repeatedly inserting the watermark into subregions or subimages of the data. Similarly, the watermark is repeatedly extracted from the subregions of the data. <IMAGE>
申请公布号 AU4434097(A) 申请公布日期 1998.05.07
申请号 AU19970044340 申请日期 1997.11.04
申请人 NEC CORPORATION 发明人 INGEMAR J. COX;MATTHEW L. MILLER;KAZUYOSHI TANAKA;YUTAKA WAKASU
分类号 H04N7/08;G06T1/00;G09C5/00;H04N1/32;H04N1/387;H04N7/081;H04N21/2389;H04N21/8358 主分类号 H04N7/08
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