Table 11 Chi-square values for original and encrypted images.
From: An image encryption scheme using 4-D chaotic system and cellular automaton
Image | \(R_{{{Original}}}\) | \(R_{{{Encrypted}}}\) | \(G_{{{Original}}}\) | \(G_{{{Encrypted}}}\) | \(B_{{{Original}}}\) | \(B_{{{Encrypted}}}\) |
|---|---|---|---|---|---|---|
Lena | 63888 | 235.54 | 28546 | 274.14 | 86488 | 269.83 |
Baboon | 82840 | 257.66 | 142810 | 280.60 | 79943 | 231.94 |
Peppers | 53024 | 229.96 | 88272 | 258.08 | 125180 | 268.40 |
Tree | 81371 | 242.08 | 57009 | 241.49 | 129820 | 236.23 |
House | 258580 | 282.01 | 299160 | 260.36 | 394040 | 256.30 |
Beans | 537500 | 275.40 | 349250 | 295.27 | 129760 | 266.78 |
F16 | 678420 | 276.71 | 682500 | 307.26 | 1107900 | 260.93 |
Girl | 790830 | 233.09 | 860970 | 237.46 | 620380 | 248.04 |
