Laser & Optoelectronics Progress, Volume. 57, Issue 16, 161026(2020)
Underwater Image Restoration Based on a Laplace Operator Prior Term
Figures & Tables(10)
Fig. 1. Degraded underwater images and transmission maps. (a)-(c) Degraded underwater images; (d)-(f) transmission maps for red channel and the value of background light
Fig. 2. Comparison results on stone statue image. (a) Original image; (b) UDCP algorithm; (c) WCID algorithm; (d) ARC algorithm; (e) UIDE algorithm; (f) proposed algorithm
Fig. 3. Comparison results on diver image. (a) Original image; (b) UDCP algorithm; (c) WCID algorithm; (d) ARC algorithm; (e) UIDE algorithm; (f) proposed algorithm
Fig. 4. Comparison results on fish image. (a) Original image; (b) UDCP algorithm; (c) WCID algorithm; (d) ARC algorithm; (e) UIDE algorithm; (f) proposed algorithm
Fig. 5. Comparisons results on pomfret image. (a) Original image; (b) UDCP algorithm; (c) WCID algorithm; (d) ARC algorithm; (e) UIDE algorithm; (f) proposed algorithm
Fig. 6. Underwater images with noise. (a) Image 1; (b) image 2; (c) image 3; (d) image 4; (e) image 5; (f) image 6
Table 1. Comparison of CQE indicator under different algorithms
View tableTable 1. Comparison of CQE indicator under different algorithms
Algorithm Fig. 2 (a)Fig. 3 (a)Fig. 4 (a)Fig. 5 (a)Average UDCP 0.6561 1.1833 0.7933 0.7207 0.7470 WCID 0.8332 0.9469 0.9092 0.8153 0.8762 ARC 0.7077 0.7674 0.7221 0.6968 0.7235 UIDE 0.6916 0.8958 1.1846 0.8977 0.9179 OUR 0.7361 0.9318 1.2315 0.9401 0.9599
Table 2. Comparison of NR-CDIQA indicator under different algorithms
View tableTable 2. Comparison of NR-CDIQA indicator under different algorithms
Algorithm Fig. 2 (a)Fig. 3 (a)Fig. 4 (a)Fig. 5 (a)Average UDCP 2.8918 2.7143 2.2570 2.3199 2.5458 WCID 2.5594 2.0939 2.3237 2.4633 2.3601 ARC 3.4568 2.4497 2.1140 2.7510 2.6929 UIDE 3.0013 3.2533 2.9446 3.3291 3.1071 OUR 2.9701 2.8577 3.3207 3.4350 3.1484
Table 3. Comparison of UCIQE indicator under different algorithms
View tableTable 3. Comparison of UCIQE indicator under different algorithms
Algorithm Fig. 2 (a)Fig. 3 (a)Fig. 4 (a)Fig. 5 (a)Average UDCP 0.4904 0.6121 0.6387 0.5301 0.5678 WCID 0.5393 0.5049 0.5905 0.4271 0.5154 ARC 0.5558 0.5040 0.5640 0.4484 0.5180 UIDE 0.5634 0.5561 0.6163 0.5655 0.5753 OUR 0.6299 0.6479 0.6618 0.5435 0.6208
Table 4. Comparison of PSNR indicator under different algorithms
View tableTable 4. Comparison of PSNR indicator under different algorithms
Algorithm Fig. 6 (a)Fig. 6 (b)Fig. 6 (c)Fig. 6 (d)Fig. 6 (e)Fig. 6 (f)Average UDCP 30.0655 30.4632 31.4078 33.5335 30.0432 27.1456 30.4431 WCID 30.4272 30.6484 31.4779 32.8322 28.6961 28.9577 30.5065 ARC 28.0938 26.9625 28.7255 29.1924 28.1914 26.0953 27.8768 UIDE 29.1820 27.7997 28.1086 28.3120 29.5326 28.8981 28.6388 OUR 31.2927 32.1086 33.4512 36.1600 31.6843 29.9113 32.4347
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Jingming Li, Guojia Hou, Zhenkuan Pan, Yuhai Liu, Xin Zhao, Guodong Wang. Underwater Image Restoration Based on a Laplace Operator Prior Term[J]. Laser & Optoelectronics Progress, 2020, 57(16): 161026
Paper Information
Category: Image Processing
Received: Dec. 2, 2019
Accepted: Jan. 16, 2020
Published Online: Aug. 5, 2020
The Author Email: Guojia Hou (hgjouc@126.com)
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