An Improved Reversible Data Hiding on Encrypted Images by Selective Pixel Flipping Technique

Amrutham Abhinav, V. Manikandan, Bini A. A.
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引用次数: 7

Abstract

Reversible data hiding on encrypted images is an active area of research in the field of information security. In this paper, we revisit the reversible data hiding scheme proposed by Xinpeng Zhang in 2011. To ensure the exact image recovery at the receiver side, the existing scheme uses a block size of 32 × 32 pixels, this leads to an embedding rate of 9.76 × 10-4 bite per pixels. We also observed that the existing scheme is prone to fail while recovering an image block which contains highly correlated pixel values (very smooth region). In this manuscript, we propose a new scheme which will help to reduce the block size without compromising the bit error rate. The experimental study of the new scheme is carried on USC-SIPI image dataset managed by the University of Southern California, and the results show that the proposed scheme outperforms the existing scheme.
一种改进的基于选择性像素翻转的加密图像可逆数据隐藏方法
在加密图像上隐藏可逆数据是信息安全领域的一个研究热点。本文回顾了2011年张鑫鹏提出的可逆数据隐藏方案。为了保证接收端精确的图像恢复,现有方案使用32 × 32像素的块大小,这导致嵌入率为9.76 × 10-4比特每像素。我们还观察到,现有方案在恢复包含高度相关像素值(非常光滑区域)的图像块时容易失败。在本文中,我们提出了一个新的方案,将有助于减少块大小而不影响误码率。在南加州大学管理的USC-SIPI图像数据集上对新方案进行了实验研究,结果表明该方案优于现有方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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