基于位平面Arnold置乱变换改进算法

Improved Algorithm of Arnold Scrambling Transformation Based on Bit Plane

针对经典图像置乱方法变换方式单一的现象,提出了一种结合位平面Arnold变换,矩阵相乘,异或运算处理的双置乱算法,达到了同时改变图像灰度值和图像灰度分布的效果,并与Arnold变换,A&G双置乱算法进行置乱效果对比。实验结果表明:本文算法置乱后的图像置乱度更高,抗攻击能力更强,信息隐藏更安全。

To counter this phenomenonthatthe classic image scrambling method transformed by single transformation mode. In order to makes the encrypted information be changed in both the position space and the gray space, we proposed a double scrambling scheme, it is essentially a combination of the Arnold scrambling in bit plane, matrix multiplication and exclusive or operation. A comparison has been made on the scrambling effect betweenthe Arnold transform, AG double scrambling algorithm and this algorithm. Experimental results show that this scrambling algorithm has higher scrambling degree, stronger attack resistance, and more secure in information hiding aspect.