A Chaotic Cryptosystem for Images Based on Henon and Arnold Cat Map

Table 10

Calculated UACI and NPCR for different combinations of and while in Peppers.

		1	2	3	4	5	6	7	8	9	10
1	UACI	5.1163	2.7810	2.0331	1.1860	1.5810	6.1305	1.4349	3.7728	3.3215	0.0564
	NPCR	81.5414	44.3218	32.4032	18.9026	25.1965	97.7051	22.8695	60.1284	52.9366	0.8984
2	UACI	16.2119	2.0258	0.9736	0.4904	0.8663	32.6779	0.4922	3.8314	4.1271	0.1998
	NPCR	89.1617	85.5148	81.7390	75.0000	76.3233	94.8944	75.3403	86.6261	89.8193	50.9499
3	UACI	33.3879	32.8273	34.7519	32.7804	33.5263	33.5459	33.3332	34.4429	33.5705	33.2778
	NPCR	99.6342	99.5850	99.6552	99.5987	99.6357	99.6017	99.6098	99.6044	99.6033	99.5075
4	UACI	33.4882	33.3894	33.4144	33.4373	33.5037	33.5170	33.4163	33.4185	33.4494	33.5380
	NPCR	99.6208	99.6124	99.5979	99.5918	99.6075	99.5892	99.6185	99.6075	99.5960	99.5995
5	UACI	33.3994	33.3844	33.5083	33.4886	33.4846	33.5354	33.4447	33.5059	33.3940	33.4656
	NPCR	99.6059	99.6124	99.6258	99.6159	99.6033	99.6067	99.6101	99.6166	99.6120	99.5953
6	UACI	33.4314	33.4144	33.4623	33.3797	33.4872	33.5663	33.4599	33.4731	33.4311	33.4141
	NPCR	99.6231	99.6296	99.6250	99.6006	99.6208	99.6265	99.6037	99.6040	99.5926	99.6120
7	UACI	33.4744	33.4282	33.4541	33.5446	33.4563	33.4700	33.4543	33.4240	33.4748	33.4333
	NPCR	99.5930	99.5968	99.6128	99.6017	99.6082	99.6021	99.6311	99.6132	99.5964	99.6185
8	UACI	33.4535	33.3790	33.5941	33.5118	33.5437	33.4958	33.5057	33.5276	33.4622	33.4553
	NPCR	99.6277	99.5972	99.5758	99.6044	99.6094	99.5983	99.6170	99.6136	99.5888	99.5983
9	UACI	33.4703	33.4465	33.4612	33.5285	33.5804	33.4783	33.4213	33.4463	33.4063	33.4409
	NPCR	99.5930	99.5975	99.6006	99.6094	99.6185	99.6262	99.5903	99.6052	99.6082	99.6071
10	UACI	33.4631	33.4266	33.3962	33.4113	33.4824	33.5212	33.5256	33.4979	33.3891	33.4482
	NPCR	99.6174	99.6109	99.6178	99.6105	99.6212	99.6071	99.5857	99.6014	99.6071	99.5960