Anticontrol of a Fractional-Order Chaotic System and Its Application in Color Image Encryption

Table 4

The results of the χ² test.

χ^2	Plain image			Ciphered image
	R	G	B	R	G	B
Pepper	35,300	32,679	64,067	258.8352	247.7227	208.7380
Flower	25,554	27,012	47,904	235.1820	250.1199	260.4022
Yacht	18,431	21,044	17,323	259.1406	271.4038	229.4794
Baboon	19,059	27,759	17,654	249.9811	237.2006	219.9287
Pepper in [26]	57,362	62,180	122,870	265.4625	269.3956	289.2321
Image 1 in [27]	—	—	—	230.8105	234.7070	250.3419
Image 2 in [27]	—	—	—	265.7558	286.3242	276.2754