图像信息隐藏算法抗攻击特性的比较研究

Comparative Research on the Anti-Attack Characteristics of Image Information Hiding Algorithms

为了分析空间域、变换域图像信息隐藏算法的抗攻击特性,文章对基于DWT、DCT、LSB信息隐藏算法的抗攻击性进行比较研究,在嵌入容量相同的情况下,分别用压缩攻击、裁减攻击、旋转攻击、缩放攻击对基于LSB、DCT、DWT的三种具体算法进行实验。所选取的DCT算法在攻击参数变化时,归一化相关系数的波动性较小。

In order to analyze the anti-attack characteristics of image information hiding algorithms for spatial domain and transformation domain, this paper undertakes comparison research on the anti-attack characteristics based on DWT, DCT, LSB information hiding algorithms, and in the case of the same capacity carries out the experiments on three specific algorithms based on LSB, DCT, DWT, which use compressed attack, cropping attack, rotation attack, and scaling attack. The Normalized Cross Correlation of DCT algorithm selected in the experiments has less fluctuation when the attack parameter changes.