A novel reversible data hiding scheme by introducing current state codebook and prediction strategy for joint neighboring coding

作者：Wang, Lingfei; Pan, Zhibin^*; Zhu, Ruoxin

来源：Multimedia Tools and Applications, 2017, 76(24): 26153-26176.

DOI：10.1007/s11042-016-4000-3

• Reversible data hiding (RDH)
• Side-match vector quantization (SMVQ)
• Joint neighboring coding (JNC)
• State codebook (SC)
• Median edge detector (MED) prediction

Reversible data hiding (RDH) in compression domain is an important research issue in the security of digital multimedia. Obtaining a high embedding rate and a low compression rate are the main goals of compression domain RDH. This paper proposes a novel RDH scheme to improve joint neighboring coding (JNC) scheme. In embedding process, the first index SC (1st) in current state codebook (SC) and median edge detector (MED) prediction P (med) are exploited. These two parameters are employed to replace the right-up and left-up neighboring SMVQ indices, which have lower correlation with the current index. As a result, a more concentrated distribution of difference "d" is obtained. Difference "d" is computed by the difference between the current SMVQ index and its left, upper neighboring indices, P (med) and SC (1st) after embedding secret bits. The experimental results show that our work achieves the average compression rate of 0.45/0.51/0.57 bpp and the average embedding efficiency of 0.28/0.36/0.43 after embedding 2/3/4 bits secret data into each SMVQ index. As demonstrated in the comparative results, it can be observed that the proposed scheme outperforms the other previous works.

• 出版日期2017-12
• 单位西安交通大学