From: Detecting documents forged by printing and copying
Predicted
Laser printer
Inkjet printer
Copier
I1
0.01
99.50
0.49
I2
98.31
1.68
Actual
I3
0.04
97.13
2.83
I4
0
99.87
0.13
I5
92.31
7.65
I6
0.03
99.19
0.78