From: Removal and injection of keypoints for SIFT-based copy-move counter-forensics
 | No keypoint | Keypoint | Keypoint removal-injection |
---|---|---|---|
 | removal | removal |  |
Church | Â | Â | Â |
 Keypoints | 10 | 0 | 3 |
 Matches | 8 | 0 | 0 |
Nativity | Â | Â | Â |
 Keypoints | 62 | 5 | 14 |
 Matches | 41 | 2 | 3 |