Research Article
Image Encryption with Double Spiral Scans and Chaotic Maps
Table 5
Comparison results of NPCR and UACI (unit: %).
| Algorithm | Image | (1, 1) | (128, 128) | (360, 360) | (512, 512) | NPCR/UACI | NPCR/UACI | NPCR/UACI | NPCR/UACI |
| Our | Lake | 99.61/33.42 | 99.60/33.37 | 99.61/33.37 | 99.61/33.37 | Goldhill | 99.61/33.75 | 99.61/33.48 | 99.62/33.75 | 99.62/33.71 | Lena | 99.63/33.47 | 99.60/33.39 | 99.62/33.39 | 99.60/33.39 |
| [6] | Lake | 99.52/34.40 | 99.51/34.41 | 99.51/34.41 | 99.51/34.41 | Goldhill | 99.56/34.31 | 99.59/34.36 | 99.59/34.36 | 99.56/34.36 | Lena | 99.54/34.67 | 99.55/34.64 | 99.54/34.68 | 99.54/34.66 |
| [31] | Lake | 99.61/33.48 | 99.60/33.53 | 99.59/33.55 | 99.61/33.48 | Goldhill | 99.60/33.53 | 99.58/33.52 | 99.60/33.55 | 99.61/33.49 | Lena | 99.61/33.51 | 99.60/33.48 | 99.60/33.61 | 99.58/33.58 |
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