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基于插值技术的高容量密文图像可逆信息隐藏算法（英文）.docx

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基于插值技术的高容量密文图像可逆信息隐藏算法（英文） Abstract Withtherapiddevelopmentofinformationtechnology,theproblemofdatasecurityhasbecomeincreasinglyimportant.Nowadays,thetransmissionofimagesovertheinternethasbecomeroutine.Therefore,theneedarisestoensuretheconfidentialityofthetransmittedimages.Inthispaper,weproposeanimprovedapproachforhigh-capacityreversibleinformationhidinginencryptedimagesusinginterpolation.Ourproposedschemeprovidesahighlevelofsecuritytotheoriginalimageanditsembeddeddatafromexternaladversaries.Thetechniqueofinterpolationisutilizedtohideasignificantlyvastamountofdatawithintheencryptedimage.Theexperimentalresultsdemonstratethatourproposedmethodprovidesahighcapacityofinformationhidingandadecentqualityoftheretrievedimage. Introduction Inrecentyears,informationsecurityhasbecomeasignificantconcernwiththefastgrowthoftheinternetanddigitalimages’distributionandtransmissionoverthenetworks.Informationhidingisapopularmethodthataimstoincreasethesecurityofdigitalimages,keepingthemsafefromunauthorizedaccess.Thepopularityofimageencryptionmethodshasalsosignificantlyincreasedovertheyears,asitensurestheconfidentialityofimagesduringtransmissionfromthesendertotherecipient.Combiningtheinformationhidingwithencryptionprovidesdouble-layersecuritytothetransmittedimages. Manytechniqueshavebeenproposedtohideinformationinimages,suchasLSB,spreadspectrum,andDCT.InInformationhiding,theamountofhiddendataisalwayslimitedsinceevenminorchangesinthehostimagecanbeeasilydetected,anditcancausesignificantdamagetothehostimage,andtheembeddeddatahampersitsquality.Additionally,encryptedimageshaveahighlevelofsecurity;however,ifhiddendataintheencryptedimage,theoriginalimage'sconfidentialitycanbecompromised. Inthispaper,weproposeanimprovedapproachforhigh-capacityreversibleinformationhidinginencryptedimagesusinginterpolation.Interpolationisaneffectivetechniquethatcanbeusedtohideasignificantamountofdataintheencryptedimagewhilemaintainingitsvisualquality.Theproposedmethodisefficientandhasahighcapacityforinformationhidi