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

Table 13

Calculated UACI and NPCR for different combinations of and while for Cameraman.

		1	2	3	4	5	6	7	8	9	10
1	UACI	7.4904	2.6620	5.1333	11.4982	3.7695	5.6794	5.3902	11.9543	8.4184	7.4904
	NPCR	29.8447	10.6064	20.4529	45.8130	15.0192	22.6288	21.4767	47.6303	33.5419	29.8447
2	UACI	1.0214	0.1943	0.4910	1.9258	0.3592	0.5052	0.4911	1.8747	1.0055	1.0214
	NPCR	83.5632	49.5514	75.0793	86.7004	63.8062	76.2024	75.0595	84.4025	81.1432	83.5632
3	UACI	33.7662	29.9298	32.1345	32.5679	33.5877	33.5277	33.6352	34.8690	33.6583	33.7662
	NPCR	99.6262	99.5071	99.5102	99.5285	99.5224	99.5850	99.6384	99.6552	99.6521	99.6262
4	UACI	33.4563	33.3303	33.4678	33.5979	33.4952	33.5201	33.4910	33.2905	33.3876	33.4563
	NPCR	99.6292	99.5453	99.5972	99.6582	99.5972	99.6170	99.5682	99.5743	99.6475	99.6292
5	UACI	33.2851	33.4706	33.3841	33.5766	33.3711	33.4932	33.3911	33.4998	33.4473	33.2851
	NPCR	99.6155	99.6262	99.5834	99.5972	99.6109	99.5956	99.5956	99.6368	99.6201	99.6155
6	UACI	33.4854	33.3612	33.6393	33.4269	33.3583	33.6404	33.4790	33.3590	33.2436	33.4854
	NPCR	99.6567	99.5911	99.5682	99.6078	99.6277	99.5880	99.6277	99.6124	99.6414	99.6567
7	UACI	33.4159	33.4013	33.5464	33.5039	33.4404	33.4768	33.4303	33.3951	33.2653	33.4159
	NPCR	99.6674	99.5850	99.6094	99.6262	99.5880	99.6140	99.5941	99.5850	99.6002	99.6674
8	UACI	33.4321	33.4036	33.6195	33.4753	33.3993	33.5394	33.4112	33.5314	33.4387	33.4321
	NPCR	99.5621	99.5926	99.6368	99.6277	99.5895	99.5941	99.5819	99.5987	99.6094	99.5621
9	UACI	33.4651	33.3438	33.4917	33.4837	33.4551	33.4780	33.4704	33.4806	33.4516	33.4651
	NPCR	99.6140	99.6323	99.5636	99.6216	99.6429	99.6109	99.6338	99.5758	99.6002	99.6140
10	UACI	33.6242	33.5821	33.2618	33.4312	33.5802	33.6133	33.3934	33.6385	33.5515	33.6242
	NPCR	99.5972	99.5895	99.6078	99.5773	99.6033	99.5911	99.6323	99.6109	99.5850	99.5972