New chaotical image encryption algorithm based on Fisher–Yatess scrambling and DNA coding
Wang Xing-Yuan1, 2, †, Zhang Jun-Jian2, ‡, Zhang Fu-Chen3, Cao Guang-Hui4
       

Experimental results for an occlusion attack. Encryption images with (a) 1/8, (b) 1/4, and (c) 1/2 occlusion; panels (d), (e), and (f) are the corresponding decryption images.