Table 8: NPCR and UACI between cipher-images with slightly different plain-images.

Image NPCR and UACI of Lena
NPCR (1-round %) UACI (1-round %) NPCR (2-round %) UACI (2-round %)

Figure 11(a)(30, 30) 1.21 0.41 99.59 33.39
Figure 11(a)(50, 50) 95.06 31.93 99.59 33.53
Figure 11(a)(80, 80) 94.90 31.93 99.60 33.48
Figure 11(a)(100, 100) 1.71 0.58 99.63 33.40