Image scrambling algorithm based on Logistic chaotic sequence and bit exchange

Abstract

Based on the analysis of the defect of the traditional iterated image scrambling,a new image scrambling algorithm was proposed based on chaotic sequence and bit exchange.According to the pixel location,the algorithm changed the image pixel values by using XOR operation in different Logistic chaotic sequence and the binary sequences of pixel value.Without iteration,the algorithm used the self-relativity of image to encrypt image.Experimental data and results show that the algorithm can achieve more effective image scrambling compared with the traditional algorithm.The algorithm has good performance in resisting the salt pepper and cutting attack.Compared with the iterative type's scrambling methods,it has higher efficiency too.