A Simple Image Encryption Based on Binary Image Affine Transformation and Zigzag Process

Figure 4

Visual test on some images using the secret key «A23C56789ABADEF7167DEAB6789367A9»: (a), (b), and (c) A plain image “Balantidum Coli cyst” and its corresponding cipher and decrypted image, respectively. (d), (e), and (f) A plain image “echopelv” and its corresponding cipher and decrypted image, respectively. (g), (h), and (i) A plain image “Girl (Lena, 4.2.04)” and its corresponding cipher and decrypted image, respectively. (j), (k), and (l) A plain image “Guefack” and its corresponding cipher and decrypted image, respectively.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)

(l)