分析了隐写图像的移除攻击模型,考虑图像采样间的相关性,提出了基于小波域HMT(隐马尔可夫树)模型的移除攻击方案。实验结果表明,性能优于图像处理中常用的高斯滤波和维纳滤波。
This paper firstly analyzed removal attack model of steganographic image and then proposed a novel removal attack scheme considering correlation between image samples.The experiment results show that proposed scheme achieves better performance than usually used Gaussian filter and Wiener filter.