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Reversible Data Hiding in Encrypted Image Based on Block Classification Permutation

Qun Mo1, Heng Yao1, Fang Cao2, Zheng Chang3, Chuan Qin1,*

School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China.
College of Information Engineering, Shanghai Maritime University, Shanghai, 201306, China.
ICD-LOSI, UMR CNRS 6281, University of Technology of Troyes, 10000 Troyes, France .

* Corresponding Author: Chuan Qin. Email: email.

Computers, Materials & Continua 2019, 59(1), 119-133. https://doi.org/10.32604/cmc.2019.05770

Abstract

Recently, reversible data hiding in encrypted image (RDHEI) has attracted extensive attention, which can be used in secure cloud computing and privacy protection effectively. In this paper, a novel RDHEI scheme based on block classification and permutation is proposed. Content owner first divides original image into non-overlapping blocks and then set a threshold to classify these blocks into smooth and non-smooth blocks respectively. After block classification, content owner utilizes a specific encryption method, including stream cipher encryption and block permutation to protect image content securely. For the encrypted image, data hider embeds additional secret information in the most significant bits (MSB) of the encrypted pixels in smooth blocks and the final marked image can be obtained. At the receiver side, secret data will be extracted correctly with data-hiding key. When receiver only has encryption key, after stream cipher decryption, block scrambling decryption and MSB error prediction with threshold, decrypted image will be achieved. When data hiding key and encryption key are both obtained, receiver can find the smooth and non-smooth blocks correctly and MSB in smooth blocks will be predicted correctly, hence, receiver can recover marked image losslessly. Experimental results demonstrate that our scheme can achieve better rate-distortion performance than some of state-of-the-art schemes.

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Cite This Article

APA Style
Mo, Q., Yao, H., Cao, F., Chang, Z., Qin, C. (2019). Reversible data hiding in encrypted image based on block classification permutation. Computers, Materials & Continua, 59(1), 119-133. https://doi.org/10.32604/cmc.2019.05770
Vancouver Style
Mo Q, Yao H, Cao F, Chang Z, Qin C. Reversible data hiding in encrypted image based on block classification permutation. Comput Mater Contin. 2019;59(1):119-133 https://doi.org/10.32604/cmc.2019.05770
IEEE Style
Q. Mo, H. Yao, F. Cao, Z. Chang, and C. Qin "Reversible Data Hiding in Encrypted Image Based on Block Classification Permutation," Comput. Mater. Contin., vol. 59, no. 1, pp. 119-133. 2019. https://doi.org/10.32604/cmc.2019.05770

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cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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