Research Article
Image Encryption Algorithm Based on Adaptive Wavelet Chaos
Table 2
Comparison of PSNR of images after decryption by four encryption algorithms.
| Method type | Lena | Couple | Gray |
| [26] | 19.32 | 20.09 | 19.56 | [27] | 19.71 | 20.49 | 19.95 | [28] | 20.37 | 20.18 | 21.06 | Ours | 21.08 | 20.94 | 21.18 |
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