关键词: 信息隐藏, 盲检测, 差值彼邻相关矩阵, 支持向量机

Abstract: A blind steganalysis method based on multi-orientation correlation of Discrete Cosine Transform (DCT) coefficient was presented. This method first applied multi-directional correlation of DCT coefficient to construct difference neighboring correlation matrix, then extracted 48 dimensional features for each image, finally Support Vector Machine (SVM) was used to classify the cover and stego images. A series of experiments were performed on 6 kinds of typical steganography of different embedding ratio. The results show that this method can make a reliable blind detection for these typical steganographic schemes.

Key words: information hiding, blind detection, difference neighboring correlation matrix, Support Vector Machine (SVM)