Chaotic Image Encryption Algorithm Based on Circulant Operation

Figure 2

Encryption and decryption: (a) plain-image of Lena, (b) cipher-image, (c) decrypted image with key 𝑥₀+10⁻¹⁴, (d) decrypted image with key 𝑦₀+10⁻¹⁴, (e) decrypted image with key 𝑧₀+10⁻¹⁴, and (f) decrypted image with key 𝑝=31.

(a)

(b)

(c)

(d)

(e)

(f)