Batch Image Encryption Using Generated Deep Features Based on Stacked Autoencoder Network

Table 2

Comparative study of NPCR and UACI of the proposed algorithm to some existing algorithms.

Images	NPCR (%)	UACI (%)	Images	NPCR (%)	UACI (%)
Ref. [18] (Lena)	99.89	33.68	Ref. [19] (Lena)	99.61	33.48
Ref. [20] (Lena)	99.6972	33.5086	Ref. [21] (Lena)	99.6086	33.4273
Ref. [22] (Lena)	99.6000	33.5000	Ref. [23] (Lena)	99.6100	33.4400
Ref. [24] (Lena)	99.5983	33.6883	Ref. [25] (Lena)	99.5865	33.4834
Ref. [26] (Lena)	99.6399	33.5916	Ref. [27] (Lena)	99.5926	33.3386
Ours (Gold-hill)	99.6108	33.5852	Ours (Barbara)	99.6432	33.5454
Ours (Yacht)	99.4968	33.6011	Ours (Peppers)	99.4205	33.3396