Image Encryption Algorithm Based on Hyperchaotic Maps and Nucleotide Sequences Database

Figure 7

Correlation analysis of Lena as a ciphered image in three directions.

(a) Horizontal correlation of the plain image

(b) Horizontal correlation of the ciphered image

(c) Vertical correlation of the plain image

(d) Vertical correlation of the ciphered image

(e) Diagonal correlation of the plain image

(f) Diagonal correlation of the ciphered image