Table 5: Cut-off values and average results of the four significant parameters on selected surfaces using artificial and human fingerprint.

Artificial fingerprintHuman fingerprint
Δ% Δ% 20°Δ% Δ% Δ% Δ% 20°Δ% Δ%

Cut-off10−2105010−21050
IML24.2 ± 0.057.8 ± 0.110.38 ± 0.07−6.28 ± 0.115.18 ± 0.12.37 ± 0.1−0.08 ± 0.037.88 ± 0.14
IMD10.4 ± 0.092.9 ± 0.17−1.06 ± 0.01−4.20 ± 0.046.24 ± 0.114.69 ± 0.1−2.87 ± 1−5.68 ± 1
VN31990 ± 2.4−6.9 ± 0.217.47 ± 0.43120 ± 3.12075 ± 64.8−15.59 ± 0.294.06 ± 0.7616 ± 10.7
IML4170.6 ± 1.3−4.9 ± 0.1143.90 ± 0.91220 ± 11.1540 ± 5.8−12.66 ± 0.164.75 ± 0.41236 ± 11.8