arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1207.2674stat.AP
收藏

基于假设检验理论的LSB匹配统计检测

Statistical Detection of LSB Matching Using Hypothesis Testing Theory

Rémi Cogranne, Cathel Zitzmann, Florent Retraint, Igor Nikiforov, Lionel Fillatre, Philippe Cornu

摘要:

本文研究了最低有效位(LSB)匹配方案中隐藏信息的检测。在已知的图像介质参数的理论背景下,两个重要的结果。首先,利用假设检验理论,我们可以设计最有效(MP)检验。其次,MP检验的研究使我们有机会分析计算其统计性能,以保证一个给定的误报概率。在实际检测LSB匹配时,必须估计未知的图像参数。基于加权隐写图像检测器中的局部估计器,给出了一个实际的测试。与最先进的检测器的数值比较表明,所提出的测试的良好性能,并突出了所提出的方法的相关性。

英文摘要:

This paper investigates the detection of information hidden by the Least Significant Bit (LSB) matching scheme. In a theoretical context of known image media parameters, two important results are presented. First, the use of hypothesis testing theory allows us to design the Most Powerful (MP) test. Second, a study of the MP test gives us the opportunity to analytically calculate its statistical performance in order to warrant a given probability of false-alarm. In practice when detecting LSB matching, the unknown image parameters have to be estimated. Based on the local estimator used in the Weighted Stego-image (WS) detector, a practical test is presented. A numerical comparison with state-of-the-art detectors shows the good performance of the proposed tests and highlights the relevance of the proposed methodology.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑