. 2018 Jul 18;20(7):535. doi: 10.3390/e20070535

Table 8.

UACI randomness test.

	Theoretically UACI Critical Value [42]
	$u_{0.05}^{* -} = 33.3730$ $u_{0.05}^{* +} = 33.5541$	$u_{0.01}^{* -} = 33.3445$ $u_{0.01}^{* +} = 33.5826$	$u_{0.001}^{* -} = 33.3115$ $u_{0.001}^{* +} = 33.6156$
Tested Image Size	UACI Test Results
Tested Image Size	0.05-level	c0.01-level	0.001-level
512 by 512	4/4	4/4	4/4
256 by 256	4/4	4/4	4/4