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

Table 14

Calculated UACI and NPCR for different combinations of and while for Chess-plate.

		1	2	3	4	5	6	7	8	9	10
1	UACI	49.7511	38.9683	0.6828	0.3194	17.8328	9.1234	1.8446	0.6682	24.8476	45.3508
	NPCR	99.1135	77.6321	2.7206	81.4575	71.0526	72.7020	14.6988	85.1974	99.0021	90.3473
2	UACI	30.8111	26.3993	34.1747	33.5065	33.3622	33.4134	33.0488	33.5821	33.5865	33.5562
	NPCR	72.5723	90.6128	99.3164	99.3210	99.5193	99.5987	99.4949	99.6674	99.5697	99.6399
3	UACI	33.6698	33.2530	33.4078	33.4257	33.5033	33.4428	33.4594	33.5224	33.3517	33.4282
	NPCR	99.5483	99.6460	99.5850	99.5682	99.6063	99.6033	99.5819	99.6338	99.5972	99.6002
4	UACI	33.4568	33.4550	33.4542	33.4903	33.5600	33.3137	33.4928	33.5251	33.4225	33.3196
	NPCR	99.6185	99.6201	99.6262	99.5819	99.5850	99.5972	99.5895	99.6216	99.5956	99.6063
5	UACI	33.4745	33.5885	33.5112	33.5035	33.4013	33.4363	33.4302	33.5542	33.4494	33.4572
	NPCR	99.6155	99.6414	99.6292	99.6262	99.5850	99.5956	99.6063	99.6262	99.6109	99.6002
6	UACI	33.4729	33.4588	33.3505	33.5044	33.5310	33.5108	33.3838	33.6189	33.3733	33.4620
	NPCR	99.6277	99.5728	99.6292	99.5987	99.6048	99.6689	99.5865	99.6017	99.5941	99.6109
7	UACI	33.4701	33.4639	33.3825	33.5426	33.4590	33.4672	33.3788	33.4522	33.4046	33.4853
	NPCR	99.5926	99.6246	99.5758	99.6368	99.5941	99.6078	99.6201	99.6399	99.6048	99.5682
8	UACI	33.4681	33.4529	33.3931	33.3834	33.6822	33.4259	33.3729	33.3856	33.4834	33.4206
	NPCR	99.5926	99.6811	99.6063	99.5941	99.5972	99.6002	99.6643	99.6368	99.5987	99.6155
9	UACI	33.3928	33.5164	33.5825	33.4455	33.5033	33.4134	33.4258	33.5132	33.5198	33.6166
	NPCR	99.5956	99.6231	99.6078	99.6216	99.6262	99.6094	99.6033	99.6094	99.6216	99.6292
10	UACI	33.2732	33.5652	33.5405	33.6319	33.3404	33.4587	33.3828	33.4207	33.4494	33.5986
	NPCR	99.5911	99.5895	99.6185	99.6002	99.6078	99.6063	99.6231	99.6216	99.5590	99.6536