A new color image encryption algorithm based on chaos sequences
Wan-qing Gao · Journal of North China Electric Power University · 2009
An encryption algorithm based on chaotic sequences ranking was presented aimed at the deficiency of the existing color image encryption method.Firstly,the algorithm scrambles the position of color image and sets one-to-one relationship between the image matrix and chaotic sequence.Then the row and column of image matrix ranking were guided by the chaotic sequence ranking.On this basis,in order to improve privacy,the pixel value of the scrambled color image is shuffled.In this shuffling,the tricolor pixel values of each pixel in color image interchange guided by the chaotic sequence ranking,so realizing the Color encryption.This results demonstrate that this algorithm has a large space of keys,high secure and good privacy.