A Novel Image Encryption Scheme Based on PWLCM and Standard Map

Table 11

Differential attack analysis (%).

Test image	NPCR		UACI
	Proposed	Reference [18]	Proposed	Reference [18]
5.1.09.tiff	99.5758	30.4524	33.6181	11.1730
5.1.10.tiff	99.6094	72.0840	33.3383	24.3893
5.1.11.tiff	99.6307	91.1133	33.6026	37.8987
5.1.12.tiff	99.5682	83.5251	33.3514	33.3899
5.1.13.tiff	99.5789	92.4042	33.2812	31.0640
5.1.14.tiff	99.6201	98.5596	33.4738	32.8520
Average	99.5972	78.3564	33.4442	28.4612