An image encryption scheme based on three-dimensional Brownian motion and chaotic system
Chai Xiu-Li1, 2, †, Gan Zhi-Hua3, Yuan Ke1, Lu Yang4, Chen Yi-Ran2
       

(color online) Correlation of two adjacent pixels of horizontal direction in (a) plain image, corresponding (b) confused image, and (c) cipher image; vertical direction in (d) plain image, corresponding (e) confused image, and (f) cipher image; diagonal direction in (g) plain image, corresponding (h) confused image, and (i) cipher image.