Fig. 1. Principle diagram of three-band true-color night vision system
Fig. 2. Source images for Scene 1. (a) Full-wave image; (b) short-wave image; (c) medium-wave image; (d) long-wave image
Fig. 3. Source images for Scene 2. (a) Full-wave image; (b) short-wave image; (c) medium-wave image; (d) long-wave image
Fig. 4. Fusion image for Scene 1 based on weighted average method
Fig. 5. Fusion image for Scene 2 based on weighted average method
Fig. 6. Fusion image for Scene 1 based on Brovey algorithm based on linear transformation enhancement
Fig. 7. Fusion image for Scene 2 based on Brovey algorithm based on linear transformation enhancement
Fig. 8. Fusion image for Scene 1 based on HSI space method
Fig. 9. Fusion image for Scene 2 based on HSI space method
Fig. 10. Fusion image for Scene 1 based on HIS method based on edge segmentation
Fig. 11. Fusion image for Scene 2 based on HIS method based on edge segmentation
Method | M | FSF | DSD | E | QIFQ |
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Weighted average method | -89.0792 | 0.6753 | 16.3691 | 4.9706 | -18.5114 | Brovey method based on linear transformation enhancement | -0.0147 | 5.7060 | 92.0118 | 7.3740 | 27.9647 | HIS space method | -66.0453 | 5.1823 | 24.2393 | 6.9380 | -8.3447 | HIS method based on edge segmentation | -37.0372 | 3.1511 | 42.0579 | 6.1350 | 3.5343 |
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Table 1. Impersonal evaluation for Scene 1
Method | M | FSF | DSD | E | QIFQ |
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Weighted average method | -56.8970 | 1.7381 | 45.9571 | 5.6365 | -1.3823 | Brovey method based on linear transformation enhancement | -0.0153 | 5.7858 | 104.9935 | 6.8598 | 31.2756 | HIS space method | -65.9828 | 9.4924 | 58.7091 | 7.4236 | 2.0884 | HIS method based on edge segmentation | -20.2883 | 3.5498 | 67.7068 | 5.8631 | 14.9623 |
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Table 2. Impersonal evaluation for Scene 2