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Lossless recovery of a VQ index table with embedded secret data

机译:具有嵌入式机密数据的VQ索引表的无损恢复

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摘要

This paper proposes a reversible data embedding scheme based on a VQ image compression technique which emphasizes that the original VQ compressed codes can be recovered after data extraction. In this proposed scheme, a VQ codebook, which had already been clustered into three groups, was adopted to achieve secret concealment and data recovery. In order to embed more secret data, the concepts of frequency clustering and trio extension were also introduced. Experimental results showed that the proposed scheme with the lossless recovery facility could work well.
机译:本文提出了一种基于VQ图像压缩技术的可逆数据嵌入方案,该方案强调在提取数据后可以恢复原始的VQ压缩码。在该提议的方案中,已经被分为三类的VQ码本被采用以实现秘密隐藏和数据恢复。为了嵌入更多的秘密数据,还介绍了频率聚类和三重扩展的概念。实验结果表明,所提方案具有良好的无损恢复能力。

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