Table 4 NPCR and UACI values for key sensitivity analysis.
From: An image encryption scheme using 4-D chaotic system and cellular automaton
Images | NPCR (%) | UACI (%) | ||||
|---|---|---|---|---|---|---|
Red | Green | Blue | Red | Green | Blue | |
Lena | 99.6582 | 99.6368 | 99.5926 | 33.3672 | 33.3832 | 33.3231 |
Baboon | 99.6140 | 99.6143 | 99.6033 | 33.4353 | 33.4385 | 33.4563 |
Peppers | 99.6246 | 99.6262 | 99.5758 | 33.3771 | 33.4461 | 33.4459 |
Tree | 99.6338 | 99.5911 | 99.5972 | 33.4657 | 33.4526 | 33.4555 |
House | 99.6277 | 99.5544 | 99.6368 | 33.3137 | 33.2396 | 33.6816 |
Beans | 99.5819 | 99.6048 | 99.5987 | 33.5689 | 33.4211 | 33.5620 |
F16 | 99.6094 | 99.6033 | 99.6174 | 33.4296 | 33.4053 | 33.4287 |
Girl | 99.6078 | 99.6048 | 99.5941 | 33.3720 | 33.4696 | 33.5072 |
Average | 99.6197 | 99.6045 | 99.6020 | 33.4162 | 33.4070 | 33.4826 |
