Reversible data embedding for indices based on histogram analysis |
| |
| Affiliation: | 1. Department of Information Engineering and Computer Science, Feng Chia University, Taichung 40724, Taiwan, ROC;2. Department of Information Technology, Travinh University, Travinh Province, Viet Nam;3. Department of Computer Science and Information Management, Providence University, Taichung 43301, Taiwan, ROC;4. Department of Biomedical Imaging and Radiological Science China Medical University, Taichung 40402, Taiwan, ROC;5. Department of Computer Science and Information Engineering Asia University, Taichung 41354, Taiwan, ROC;1. Medical Image Computing and Signal Processing Laboratory, Indian Institute of Information Technology and Management-Kerala, Trivandrum 695581, India;2. Department of Imaging Sciences and Interventional Radiology, SCTIMST, Trivandrum, India;1. Multimedia Processing Laboratory, School of Electrical and Computer Engineering, University of Tehran, Tehran, Iran;2. Distributed Collaborative Virtual Environments Research Lab, School of Electrical Engineering and Computer Science, University of Ottawa, Canada;1. Graduate School at Shenzhen, Tsinghua University, Shenzhen, China;2. Department of Computer Science, The University of Central Arkansas, Conway, USA;3. Schools of Software, University of Technology, Sydney, Australia |
| |
| Abstract: | Reversible data hiding is a technique that not only protects the hidden secrets but also recovers the cover media without any distortion after the secret data have been extracted. In this paper, a new reversible data hiding technique for VQ indices which are compressed streams based on the mapping function and histogram analysis of transformed VQ indices is introduced to enhance the performance of some earlier reversible data hiding schemes that are based on VQ indices. As a result, the proposed scheme achieves high embedding capacity and data compression simultaneously. Moreover, the original VQ-compressed image can be perfectly reconstructed after secret data extraction. To estimate the performance of the proposed scheme, variety of test images are used in the experimental testing. As can be seen in the experimental result, our scheme is superior to some previous schemes in term of compression rate and embedding rate while maintaining the reversibility. |
| |
| Keywords: | Data hiding Image compression Reversible Steganography VQ compression Mapping function Histogram analysis High capacity |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
