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首页> 外文期刊>International journal of information security and privacy >Dual Image-Based Dictionary Encoded Data Hiding in Spatial Domain
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Dual Image-Based Dictionary Encoded Data Hiding in Spatial Domain

机译：隐藏在空间域中的基于双图像的字典编码数据

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摘要

In the modern digital era, the privacy of personal communication is a serious concern to all netizens. A better way to preserve privacy could be to hide the secret message inside some innocent looking digital object such as image, audio, video, etc., which is known as steganography. A new steganographic scheme using a reference image along with the cover image has been proposed in this article. It enhances the robustness and security by increasing the obscurity of the hidden message. It also employs an additional dictionary-based encoding module to increase the hiding capacity as well as security. Experiments show that bit changes in the reference image are very few and undetectable to human perception, it also evades common statistical tests. Evaluation of standard quality parameters such as MSE, PSNR, UIQI, SSIM along with chi-squared statistics based embedding probability testing has been performed. When dictionary-based encoding is applied it further improves the quality parameters.
机译：在现代数字时代，个人通信的隐私是所有网民都非常关注的问题。更好的保护隐私的方法可能是将秘密消息隐藏在一些看起来无辜的数字对象中，例如图像，音频，视频等，这就是隐写术。本文提出了一种使用参考图像和封面图像的新隐写术方案。它通过增加隐藏消息的模糊性来增强鲁棒性和安全性。它还采用了额外的基于字典的编码模块，以提高隐藏能力和安全性。实验表明，参考图像中的位变化非常少，人类无法察觉，它也规避了常见的统计检验。对标准质量参数（例如MSE，PSNR，UIQI，SSIM）以及基于卡方统计的嵌入概率测试进行了评估。当应用基于字典的编码时，它将进一步改善质量参数。

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