A New Image Encryption Scheme Based on Hybrid Chaotic Maps

Figure 18

Adjacent pixels correlation test for Lena: (a) plain image by horizontal, (b) plain image by vertical, (c) plain image by diagonal, (d) cipher image by horizontal, (e) cipher image by vertical, and (f) cipher image by diagonal.

(a)

(b)

(c)

(d)

(e)

(f)