Dr. Ruihua Liu Profile

Dr. Ruihua Liu

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Proceedings Article | 28 April 2023 Paper

Reversible data hiding in encrypted image based on pixel prediction and group marking

Ruihua Liu, Quan Zhou

Proceedings Volume 12626, 126262T (2023) https://doi.org/10.1117/12.2674453

KEYWORDS: Image encryption, Image restoration, Image processing, Data hiding, Error analysis, Image transmission

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In recent years, as people pay more and more attention to the protection of cloud data, reversible data hiding in encrypted image (RDHEI) has become the focus of research. This paper proposes a hiding scheme based on pixel prediction and group marking. First, the cover image is pre-processed, including block, grouping, pixel prediction, etc. Then, the embedding method and position are selected according to the parameters, and the marked map is generated. Finally, we encrypt the image and embed data in the encrypted pixels according to the marker map to obtain an image for transmission. For the receiver, separable data recovery is performed based on the key. The correct rate of secret data extraction is 100%, and the cover image can be recovered without distortion. This method does not require auxiliary information during decryption, but the decryption quality is good. At the same time, the method provides two embedding methods to provide a high embedding rate. Therefore, this method has advantages in image decryption quality, embedding rate, and separability.

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