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. 2018 Sep 19;20(9):716. doi: 10.3390/e20090716

Table 6.

Chi-test results of 30 encrypted images under confidence level is 0.05.

Test Images x2 of Plain Image x2 of Cypherimage in [33] x2 of Cypherimage in Our Algorithm
cameraman 16,711,680 288.9823 < 295.25 285.3125 < 295.25
pepper 50,135,040 269.3387 < 295.25 260.3421 < 295.25
rice 96,312 284.2387 < 295.25 278.6172 < 295.25
autumn 18,122,850 289.9832 < 295.25 288.5792 < 295.25