基于通信系統(tǒng)模型的數(shù)字水印技術(shù)及算法研究.pdf

1、重慶郵電大學(xué)碩士學(xué)位論文基于通信系統(tǒng)模型的數(shù)字水印技術(shù)及算法研究姓名：田間申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：陳善學(xué)20080601重慶郵電大學(xué)碩士論文摘要AbstractDigitalwatermarkingisanewlytechnologyofinformationhidingItimbedsdata、letter、copyrightinformationintomultimediadata，inordertoprot

2、ectthecopyrightInadditiondigitalwatermarkingalsoplaysallimportantroleinotherareasuchasauthentication、secretcommunication、electronicidentityauthenticationandSOonDi百talwatermarkingreferstoinformationtheory，cryptology，mathe

3、matics，computerscience，andpatternrecognitiorLItmakesthesecretedinformationbecomemolecoveredandsafe，atthesametimethecoveredinformationbearssymmetryanderrorcorrectionAfterdeeplyresearchinthissubjectitexpressesthatithasabri

4、ghtappliedvalueItalsaisedtheextensiveconcernfronacademicworld、industrialandmilitaryauthorityThispaperstudieswatermarkingfromthesystemofcommunicationAtfirstitintroducesthedevelopmentsituation、applicationandtheexistentprob

5、lemofthewatermarkInthesectionpart，itpresentsthewatermarkingtheory、system、character、sortsanddesignqualificationAtthethirdpart，itresearcheswatermarkingfrominformationsourceandproposesanewalgorithmofwatermarkingatpixel—leve

6、lfromthecommunicationsystemAfertheexperiment，itexpressesthisalgorithmisvalubleandhelpfIllInthepartfouritresearcheswatermarkingfromchannelandintroducespreadspectrumtheorysimplyandpresentsaalgorithmfromCDMAthentestsitsperf

7、ormanceinexperimentAtlastitresearcheswatermarkingfrominformationreceaverthenitintroducesimageauthenticationwhichisthehotspotinwatermarkingereaInthispart，itfirstlyintroducesthesortandgeneralmodelofauthenficationinThenitex