A Novel Algorithm for Scrambling Digital Image Based on Cat Chaotic Mapping

Abstract

This paper proposes a new algorithm for scrambling digital image based on the cat chaotic mapping. We disorder the pixel coordinates of the digital image through using a cat chaotic mapping, and then perform exclusive OR operation between certain pixel value of the digital image and a chaotic value. The experiment results have shown that the new diffusion technique proposed in this paper is very effective to uniform the statistical characteristics of the encrypted graph, and the efficiency of this method is very high.