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

Table 7

Difference rate of two decrypted images with slight change in a parameter.

Parameter	Encryption parameters	Decryption parameters	Decrypted images difference rate
	6	5	99.59%
	2	1	99.62%
	2	1	99.59%
	12345678	12345677	99.62%
	87654321	87654322	99.58%
	12345	12344	99.59%
	67890	67889	99.60%
	1.21000001	1.21000002	99.60%
	0.36000001	0.36000002	99.62%