Li Li, Huigang Wang, Xing Liu. Underwater Image Enhancement Based on Improved Dark Channel Prior and Color Correction[J]. Acta Optica Sinica, 2017, 37(12): 1211003
- Acta Optica Sinica
- Vol. 37, Issue 12, 1211003 (2017)
Fig. 1. Receiving optical components in underwater imaging system
![Comparison in underwater dark channel prior. (a) Underwater image; (b) traditional dark channel; (c) dark channel of Ref. [9]; (d) dark channel of our method](/richHtml/gxxb/2017/37/12/1211003/img_2.jpg)
Fig. 2. Comparison in underwater dark channel prior. (a) Underwater image; (b) traditional dark channel; (c) dark channel of Ref. [9]; (d) dark channel of our method
Fig. 3. Refined transmission. (a) Transmission of R channel; (b) transmission after guided filtering
Fig. 4. Algorithm flow
Fig. 5. First set of image processing results. (a) Original image; (b) result using the method of Ref. [9]; (c) result using the method of Ref. [4]; (d) result using our method
Fig. 6. Second set of image processing results. (a) Original image; (b) result using the method of Ref. [9]; (c) result using the method of Ref. [4]; (d) result using our method
Fig. 7. Third set of image processing results. (a) Original image; (b) result using the method of Ref. [9]; (c) result using the method of Ref. [4]; (d) result using our method
Fig. 8. Fourth set of image processing results. (a) Original image; (b) result using the method of Ref. [9]; (c) result using the method of Ref. [4]; (d) result using our method
Fig. 9. First set of edge detection results. (a) Original image; (b) result using the method of Ref. [9]; (c) result using the method of Ref. [4]; (d) result using our method
Fig. 10. Second set of edge detection results. (a) Original image; (b) result using the method of Ref. [9]; (c) result using the method of Ref. [4]; (d) result using our method
Fig. 11. Third set of edge detection results. (a) Original image; (b) result using the method of Ref. [9]; (c) result using the method of Ref. [4]; (d) result using our method
Fig. 12. Fourth set of edge detection results. (a) Original image; (b) result using the method of Ref. [9]; (c) result using the method of Ref. [4]; (d) result using our method
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Table 1. Clarity compared on four images
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Table 2. Contrast compared on four images
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