Joint Watermarking and Encryption for Social Image Sharing  

作　　者：Conghuan Ye Shenglong Tan Shi Li Jun Wang Qiankun Zuo Bing Xiong 

机构地区：[1]School of Information Engineering,Hubei University of Economics,Wuhan,430205,China [2]School of Computer and Communication Engineering,Changsha University of Science&Technology,Changsha,410114,China

出　　处：《Computers, Materials & Continua》2025年第5期2927-2946,共20页计算机、材料和连续体(英文)

基　　金：funded by NSFC Grants 61502154,61972136,the NSF of Hubei Province(2023AFB004,2024AFB544);Hubei Provincial Department of Education Project(No.Q20232206);Project of Hubei University of Economics(No.T201410).

摘　　要：With the fast development of multimedia social platforms,content dissemination on social media platforms is becomingmore popular.Social image sharing can also raise privacy concerns.Image encryption can protect social images.However,most existing image protection methods cannot be applied to multimedia social platforms because of encryption in the spatial domain.In this work,the authors propose a secure social image-sharing method with watermarking/fingerprinting and encryption.First,the fingerprint code with a hierarchical community structure is designed based on social network analysis.Then,discrete wavelet transform(DWT)from block discrete cosine transform(DCT)directly is employed.After that,all codeword segments are embedded into the LL,LH,and HL subbands,respectively.The selected subbands are confused based on Game of Life(GoL),and then all subbands are diffused with singular value decomposition(SVD).Experimental results and security analysis demonstrate the security,invisibility,and robustness of our method.Further,the superiority of the technique is elaborated through comparison with some related image security algorithms.The solution not only performs the fast transformation from block DCT to one-level DWT but also protects users’privacy in multimedia social platforms.With the proposed method,JPEG image secure sharing in multimedia social platforms can be ensured.

关 键 词：Multimedia security digital watermarking image encryption image sharing privacy protection 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]