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Performance of reversible digital image watermarking under error-prone data communication: a simulation-based study

机译:易出错数据通信下可逆数字图像水印的性能:基于仿真的研究

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摘要

Reversible digital watermarking techniques enable the recovery of the original `cover image?? from a watermarked image in a distortion-free way. Reversible watermarking techniques find application in military and medical imagery, where integrity of the cover image is of utmost importance. However, in practice, many military data transmissions occur over communication channels whose noise levels are so high that the receiving system is unable to correct all errors in the received data. In such a case, the authors are bound to get non-zero distortion in the recovered cover image as well as the extracted watermark, in spite of using reversible watermarking techniques. In this study, they investigate the effect of high data error rates on different state-of-the-art reversible watermarking algorithms. Their simulation results help to choose the most suitable reversible watermarking scheme, depending on whether the distortion of the retrieved cover image or the distortion of the retrieved watermark is the primary concern.
机译:可逆的数字水印技术可以恢复原始的“封面图像”。从水印图像中以无失真的方式进行。可逆水印技术可用于军事和医学图像,其中封面图像的完整性至关重要。但是,实际上,许多军用数据传输都是在通信信道上进行的,这些通信信道的噪声水平很高,以致接收系统无法校正接收到的数据中的所有错误。在这种情况下,尽管使用了可逆的水印技​​术,但作者必然会在恢复的封面图像以及提取的水印中获得非零失真。在这项研究中,他们研究了高数据错误率对不同技术水平的可逆水印算法的影响。他们的模拟结果有助于确定最合适的可逆水印方案,具体取决于所检索的封面图像的失真还是所检索的水印的失真。

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  • 来源
    《Image Processing, IET》 |2012年第6期|p.728-737|共10页
  • 作者

    Naskar R.; Chakraborty R.S.;

  • 作者单位

    Department of Computer Science and Engineering, Indian Institute of Technology Kharagpur;

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  • 原文格式 PDF
  • 正文语种 eng
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