New Image Encryption Algorithm Based on Combined Multidimensional Chaotic Systems
Zhigang Chen · Jisuanji gongcheng · 2007
This paper presents a new chaotic image encryption algorithm which shuffling the positions and changing the grey values of image pixels are combined.Firstly,the general Arnold map is used to shuffle the positions of the image pixels in the spatial-domain.Then the sequence values of the Liu chaotic system is adopted to generate integer keys for the grayscale image encryption,and the shuffled image is encrypted by the integer keys pixel by pixel.The experimental results demonstrate that the image encryption algorithm shows advantages of large key space,high-level security,and the ciphered image has random-like distribution behavior of grey values,adjacent pixels have zero co-correlation properties.