Affiliations: [1] Department of Information Engineering and Computer Science, Feng Chia University, Taichung 40724, Taiwan, R.O.C
| [2] Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung 40402, Taiwan, R.O.C
| [3] Department of Information Technology, Tra Vinh University, Tra Vinh Province, Vietnam, e-mail: alan3c@gmail.com, thaison@tvu.edu.vn
Correspondence:
[*]
Corresponding author.
Abstract: Reversible data hiding is a method that can guarantee that the cover image can be reconstructed correctly after the secret message has been extracted. Recently, some reversible data hiding schemes have concentrated on the VQ compression domain. In this paper, we present a new reversible data hiding scheme based on VQ and SMVQ techniques to enhance embedding capacity and compression rate. Experimental results show that our proposed scheme achieves higher embedding capacity and smaller average compression rate than some previous methods. Moreover, our proposed scheme maintains the high level of visual quality of the reconstructed image.
Keywords: VQ, image compression, SMVQ, reversible data hiding, embedding capacity
Journal: Informatica, vol. 25, no. 4, pp. 523-540, 2014
