提出了一种对隐写图像的新的四分类盲检测方法。分析了与信息隐藏相关的26个图像质量特征,并使用方差分析选取了部分相对有效的特征向量。采用四分类的支持向量机根据这些特征向量进行训练和分类,实现了一种新的信息隐藏盲检测方法。该方法不仅仅能较准确地识别出是否隐藏了信息,还能识别出信息隐藏的隐藏域,即DWT域、DCT域,或者空域。实验结果表明,该方法能够很好地识别隐写域,具有较高的识别率。
A new method of 4 classifications for blind image steganalysis is proposed. 26 image quality measures which are related to steganographic are analyzed, and some of effective features based on the analysis of variance technique are choosed. Then a 4-class support vector machine with these features is trained and tested a new blind steganalysis of hiding image is implemented. This method can not only detect the presence of hidden message but also identify the hiding domains. The experiment results show that this method can identify steganographic domains at higher distinguish ratio.