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提出了一种新颖的基于DCT域的自适应信息隐蔽通信算法.首先对原始图像块的多特性参数进行模糊聚类,将图像块分成两类,一类适合隐藏信息,另一类不适合,其隶属度作为隐藏信息强度的自适应系数.将混沌系统产生的序列嵌入到通信载体上,利用混沌同步进行隐蔽信息的检测.仿真实验表明,该算法有较强的鲁棒性,同时能保证通信载体的隐藏信息质量,确保通信安全.
A novel covert communication algorithm based on DCT domain is proposed.Firstly, the multi-characteristic parameters of the original image block are classified by fuzzy clustering, the image blocks are divided into two categories, one is suitable for hidden information and the other is unsuitable, The membership degree is used as an adaptive coefficient to conceal information intensity, and the sequences generated by the chaotic system are embedded into the communication carrier, and the detection of covert information is carried out by using chaos synchronization. Simulation results show that the algorithm is robust and can guarantee The hidden information quality of the communication carrier ensures the communication security.