A Reversible Data Hiding Scheme in Encrypted Image with LSB Compression and MSB Replacement
A new scheme of reversible data hiding in encrypted images is proposed in this paper. Content owner first encrypts divided blocks by the specific stream cipher and permutation. During data embedding, data hider embeds secret data into the compressed least significant bits (LSB) and the most significant bits (MSB) of a part of pixels in the smooth region. After the receiver receives the marked, encrypted image, he or she can obtain a directly decrypted image with encryption key. With data-hiding key, the receiver can extract the embedded data from the compressed LSB sequences and MSB layers. If the receiver has both encryption key and data-hiding key, he or she not only can extract the embedded data from the marked, encrypted image, but also can recover original image correctly. Experimental results show our scheme achieves better rate-distortion performance than some reported schemes.
KeywordsImage encryption Reversible data hiding Data extraction Image recovery
This work was supported by National Natural Science Foundation of China (61702332, 61562007, 61672354), Natural Science Foundation of Guangxi (2017GXNSFAA198222), and Research Fund of Guangxi Key Lab of Multi-source Information Mining & Security (MIMS15-03).
- 7.Puteaux, P., Trinel, D., Puech, W.: High-capacity data hiding in encrypted images using MSB prediction. In: Proceedings of 2016 Sixth International Conference on Image Processing Theory, Tools and Applications (IPTA), Oulu, Finland, pp. 1–6, December 2016Google Scholar
- 10.Zhang, X.P.: Separable reversible data hiding in encrypted image. IEEE Trans. Inf. Forensics Secur. 7(2), 526–532 (2012)Google Scholar