A Novel Compressive Image Encryption with an Improved 2D Coupled Map Lattice Model

Table 6

The NPCR and UACI results of the proposed scheme and other schemes.

Image	NPCR			UACI
	R	G	B	R	G	B
Lena in our scheme	0.9961	0.9963	0.9961	0.3347	0.3345	0.3348
Lena in [24]	0.9961	0.9961	0.9961	0.3346	0.3346	0.3347
Lena in [25]	0.9969	0.9969	0.9969	0.3333	0.3333	0.3333
Lena in [26]	0.9958	0.9963	0.9966	0.3334	0.3341	0.3348
Lena in [27]	0.9967	0.9969	0.9969	0.3352	0.3353	0.3354
Lena in [28]	0.9961	0.9961	0.9961	0.3349	0.3349	0.3347
Lena in [29]	0.9973	0.9968	0.9970	0.3346	0.3345	0.3346
Lena in [30]	0.9967	0.9964	0.9965	0.3351	0.3350	0.3349