Reversible Steganography Based on Side Match and Hit Pattern for VQCompressed Images

摘要：

Data hiding is a technique which embeds secret data into cover media. It is important to the multimedia security and has been widely studied. Recently, some researchers paid attention to reversible data hiding methods. These methods can reconstruct the original image from the stego-image when embedded data are extracted. In this paper, we propose a new reversible steganographic method for vector quantization (VQ) compressed images. The new method uses the hit pattern to achieve reversibility, and the hit pattern strategy successfully reduces the overhead. The codebook is partitioned by the extension method which makes the stego-image have good visual features. Also, a look-up table is used to speed up the partitioning operation. Compared to Chang et al. s method, the experimental results show that the proposed method has higher capacity, better visual quality, and lower running time.

关键词： Date hiding Reversible data hiding Steganography Vector quantization Side match vector quantization

作者: Cheng-Hsing Yang Cheng-Ta Huang Shiuh-Jeng Wang

作者单位: Department of Computer Science National Pingtung University of Education Pingtung,Taiwan 900 Department of Information Management Central Police University Taoyuan,Taiwan 333

会议类型: 国际会议

会议名称: The Fifth International Conference on Information Assurance and Security(第五届信息保障与安全国际会议)

会议地点: 西安

会议语种:英文

页码: 607-610

在线出版日期: 2009-08-18（万方平台首次上网日期，不代表论文的发表时间）