From: Enhanced state selection Markov model for image splicing detection
Function model | P 1 | P 2 | P 3 | P 4 | AC (%) | TP (%) | TN (%) | |
---|---|---|---|---|---|---|---|---|
Average function |
| 0.25 | 0.25 | 0.25 | 0.25 | 86.1 | 86.3 | 85.8 |
0.93 | 1.6 | 1.8 | ||||||
Linear function | y = a * |x|, a = − 0.1 | 0.4 | 0.3 | 0.2 | 0.1 | 86.6 | 87.0 | 86.3 |
1.0 | 1.9 | 1.7 | ||||||
Quadratic function | y = a * x2 + c, a = − 0.027, c = 0.346 | 0.34 | 0.32 | 0.22 | 0.12 | 85.3 | 85.9 | 84.7 |
1.0 | 1.9 | 2.0 | ||||||
Gaussian function |
| 0.37 | 0.32 | 0.16 | 0.14 | 86.3 | 86.4 | 86.2 |
1.0 | 1.7 | 1.6 | ||||||
Exponential function | y = a * eb|x|, a = 0.460, b = − 0.051 | 0.46 | 0.27 | 0.16 | 0.11 | 87.5 | 87.6 | 87.5 |
 |  |  |  |  |  | 1.0 | 1.8 | 1.9 |