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 | 78.4 | 79.2 | 77.6 |
1.0 | 2.3 | 2.2 | ||||||
Linear function | y = a * |x|, a = − 0.160 | 0.34 | 0.28 | 0.22 | 0.16 | 77.9 | 79.4 | 76.4 |
1.0 | 2.5 | 2.3 | ||||||
Quadratic function | y = a * x2 + c, a = − 0.013, c = 0.294 | 0.37 | 0.28 | 0.24 | 0.18 | 77.5 | 78.4 | 76.5 |
1.0 | 2.7 | 2.1 | ||||||
Gaussian function |
| 0.35 | 0.31 | 0.22 | 0.12 | 78.0 | 79.6 | 76.4 |
0.9 | 2.5 | 2.3 | ||||||
Exponential function | y = a * eb|x|, a = 0.404, b = − 0.378 | 0.40 | 0.28 | 0.19 | 0.13 | 77.6 | 78.7 | 76.5 |
 |  |  |  |  |  | 0.9 | 2.5 | 1.9 |