Reversible Data Hiding by Encrypting Secret Images using Hierarchical and Bit Shifting

Reversible Data Hiding (RDH) along with the encrypted image plays a predominant role in preserving the data. Many traditional algorithm does not work well in terms of Embedding Capacity (EC) and security. To address this problem, a novel RDH technique for shuffling the pixels and hierarchical embedding data with minimum distortion is introduced. Specifically, the data encryption is proposed to attain high security. The search of the pixel using Quantum Walk (QW) in three different directions and relation between pixels inside the block are carefully noted for shuffling. Then, the data is embedding by analyzing the Hierarchical Data Embedding (HDE) in each layer of pixels bit. At the receiver side, the less error data is perfectly managed with Prediction Error (PE) in preserving the Secret Data (SD) inside the original image is enabled. Experiment results show that the proposed method outperforms some state-of-the-art methods, including precision, recall, time, Peak Signal Noise Ratio (PSNR) and EC.