Adaptive steganography based on block complexity and matrix embedding

作者：Liu Guangjie^*; Liu Weiwei; Dai Yuewei; Lian Shiguo

来源：Multimedia Systems, 2014, 20(2): 227-238.

DOI：10.1007/s00530-013-0313-5

• Adaptive steganography
• Block complexity
• Matrix embedding
• Information hiding

In this paper, an adaptive steganography algorithm based on block complexity and matrix embedding is proposed. The matrix embedding constructed by [8,3], [8,4] [8,5] [8,6] and [8,7] linear codes is taken as the basic embedding strategy. Each block with 2 x 4 pixels is used as a cover unit and its block complexity is computed by neighboring pixel difference. The embedding strategy sets are defined for seven kinds of blocks with different complexity. The corresponding embedding strategies are determined by resolving the embedding risk minimization problem. The adaption manners guarantee that message bits are mainly embedded into the regions with higher complexity values. Experiments are performed and the results show that the proposed method can provide a moderate capacity with lower distortion and have higher resistance ability against the chosen steganalytic algorithms.

• 出版日期2014-3
• 单位南京大学