Design and Analysis of a Novel Chaos-Based Image Encryption Algorithm via Switch Control Mechanism

Table 2

NPCR and UACI of different positions.

Position	(1, 1)	(64, 64)	(128, 128)	(1, 256)	(256, 1)	(256, 256)
NPCR (%)	99.6063	99.6048	99.6201	99.5880	99.6048	99.5926
UACI (%)	33.4621	33.2419	33.4538	33.3603	33.3034	33.3788