From: Detection of tampered region for JPEG images by using mode-based first digit features
Size | QF2 | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
75 | 80 | 85 | 90 | 95 | |||||||
150 Ă— 150 | ME | STD | ME | STD | ME | STD | ME | STD | ME | STD | |
QF1 | 50 | 0.0705 | 0.0626 | 0.0667 | 0.0083 | 0.0895 | 0.0605 | 0.1062 | 0.0751 | 0.2298 | 0.2541 |
 | 55 | 0.0669 | 0.0536 | 0.0719 | 0.0589 | 0.0844 | 0.0595 | 0.0996 | 0.0713 | 0.1705 | 0.1653 |
 | 60 | 0.0819 | 0.1077 | 0.0670 | 0.0514 | 0.0687 | 0.0090 | 0.0992 | 0.0624 | 0.1592 | 0.1633 |
 | 65 | 0.1375 | 0.1597 | 0.0637 | 0.0272 | 0.0733 | 0.0496 | 0.0883 | 0.0506 | 0.1348 | 0.1017 |