首页> 外文期刊>Selected Areas in Communications, IEEE Journal on >Anti-Forensics with Steganographic Data Embedding in Digital Images
【24h】

Anti-Forensics with Steganographic Data Embedding in Digital Images

机译:在数字图像中嵌入隐匿性数据的反取证

获取原文
获取原文并翻译 | 示例
           

摘要

E-forensics investigates and extracts confidential information from electronic products; in other words, the anti-forensics indicates that evidences in those products are imperceptible and undetected. This work presents an anti-forensic steganography method that can embed and extract messages from images. Highlight of exploiting modification direction (HoEMD) and adaptive EMD (AdEMD) methods use the module operation and take into account of the sensitive nature of a human visual system. The HoEMD approach exploits the pixel directions. A pixel with a larger change implies more pixel directions and, ultimately, a larger embedding capacity. The pixel differencing in the proposed AdEMD method is used to evaluate whether the pixel located in the edge area can tolerate a larger change than that of the pixel location in a smooth area. To successfully extract a message, the differencing value is maintained on the same level before and after data is concealed; a delicate adjusting phase is used as well. In contrast with the PVD and LSB replacement method of Wu et al., LSB substitution method, and Lee and Chen's data hiding scheme based on modulus function, the proposed steganography system has a larger embedding capacity and a higher image quality. Effectiveness of the proposed steganography schemes over that of a previous blind steganalyzer is demonstrated using the statistical attack of Chi-square analysis.
机译:电子取证调查并从电子产品中提取机密信息;换句话说,反法医学表明这些产品中的证据是无法察觉的且未被发现。这项工作提出了一种可将图像嵌入和提取消息的反取证隐写方法。利用修改方向(HoEMD)和自适应EMD(AdEMD)方法的重点是使用模块操作,并考虑了人类视觉系统的敏感性。 HoEMD方法利用像素方向。变化较大的像素意味着更多的像素方向,最终意味着更大的嵌入能力。所提出的AdEMD方法中的像素差异用于评估边缘区域中的像素是否可以承受比平滑区域中的像素位置更大的变化。为了成功提取消息,在隐藏数据之前和之后,将差分值保持在同一级别;还使用了微妙的调整阶段。与Wu等人的PVD和LSB替换方法,LSB替换方法以及基于模函数的Lee和Chen的数据隐藏方案相比,该隐秘系统具有更大的嵌入能力和更高的图像质量。使用卡方分析的统计攻击证明了所提出的隐写术方案相对于先前的盲隐写分析仪的有效性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号