Table 12: NPCR and UACI between cipher-images with slightly different plain-images.

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

Figure 15(a)(30, 30)94.8331.9699.6133.47
Figure 15(a)(50, 50)93.4831.4099.4833.36
Figure 15(a)(80, 80)0.960.3299.6033.45
Figure 15(a)(100, 100)1.110.3899.6133.51