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Introduction TheInternetandtheadvancementofdigital technologieshaveenablednumerousapplicationsin theareasofmultimediacommunicationsandmulti-medianetworking.Atypicalcharacteristicofdigi-talproductsisthattheyareeasytomanipulate,i.e.tostore,duplicate,transmitormodify.Thus,theauthenticationandthecopyrightprotec-tionfromunauthorizedmanipulationofdigitalau-dio,image,andvideodatabecomeanessential concerninthedigitalmultimediaera[1].Digitalwa-termarkinghasattractedconsiderableattentionand seennumerou… 相似文献
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