Laser & Optoelectronics Progress, Volume. 58, Issue 8, 0810013(2021)
Underwater Image Restoration Based on Light Attenuation Prior and Background Light Fusion
Figures & Tables(7)
![Background light estimation results of different underwater images. (a) Background light [5,56,250]; (b) background light [5,195,222]; (c) background light [5,72,137]](/Images/icon/loading.gif){kind=icon}
Fig. 3. Background light estimation results of different underwater images. (a) Background light [5,56,250]; (b) background light [5,195,222]; (c) background light [5,72,137]
Fig. 4. Comparison results of transmissivity estimation of underwater images. (a) Original images; (b) dark-channel prior transmittance images; (c) scene depth images; (d) reconstruction of underwater images; (e) histogram of RGB color channels of original images; (f) R channel transmittance images; (g) G channel transmittance images; (h) B channel transmittance images
Fig. 5. Comparison of restoration effects of underwater images. (a) Original images; (b) Ref. [6]; (c) Ref. [7]; (d) Ref. [8]; (e) Ref. [9]; (f) proposed algorithm
Fig. 6. Test results of feature matching. (a) Original images; (b) restored images
Table 1. Quantitative comparison of underwater image restoration algorithms
View tableTable 1. Quantitative comparison of underwater image restoration algorithms
No. Index Original image Ref. [6] Ref.[7] Ref.[8] Ref.[9] Proposed algorithm 1 Entropy 6.8233 7.3462 7.3632 7.5594 7.7445 7.9178 NIQE 3.2417 2.5762 2.6399 2.6439 2.3074 2.3257 UIQM 0.9615 2.2719 1.6685 3.6182 3.8317 4.4542 UCIQE 0.4305 0.5516 0.6033 0.5974 0.5854 0.6202 2 Entropy 6.2370 7.1414 7.6010 7.0295 7.7364 7.9370 NIQE 4.3240 3.1568 2.6720 2.9240 2.6457 2.5862 UIQM 2.3545 3.7381 5.0644 6.0428 4.5423 4.0959 UCIQE 0.4258 0.5810 0.6241 0.6097 0.6418 0.6765 3 Entropy 6.9866 7.1512 7.2299 7.7191 7.5839 7.9310 NIQE 3.6392 2.8596 2.5252 2.9635 2.8572 2.9867 UIQM 2.5819 0.8833 1.6980 4.5579 0.7199 3.6362 UCIQE 0.4569 0.5331 0.5915 0.6083 0.5397 0.5642 4 Entropy 6.7570 7.1658 7.1389 7.0463 7.6115 7.8695 NIQE 4.1048 3.4209 3.6734 3.5132 3.3486 3.3327 UIQM 1.7011 2.3043 3.1267 6.1951 3.5699 4.7565 UCIQE 0.4358 0.5446 0.5987 0.6230 0.5873 0.6280 No. Index Original image Ref. [6] Ref.[7] Ref.[8] Ref.[9] Proposed algorithm 5 Entropy 7.3398 7.4791 7.0732 6.4937 7.5664 7.9270 NIQE 4.0516 3.8539 3.8485 3.8734 3.8690 3.9083 UIQM 1.6282 1.4970 1.7659 5.2139 2.2515 4.2819 UCIQE 0.5437 0.5861 0.5730 0.6119 0.6205 0.6216 6 Entropy 7.1926 7.5553 7.3588 7.4174 7.7709 7.8321 NIQE 2.4440 2.3855 2.4844 2.5687 2.8187 2.9316 UIQM 0.4494 0.7420 3.0655 3.5620 3.1011 3.7001 UCIQE 0.5534 0.6031 0.6398 0.6116 0.6423 0.6747 7 Entropy 6.7076 7.2934 7.3588 7.3623 7.6221 7.7644 NIQE 3.8075 4.4950 3.7494 3.7617 3.8432 3.9306 UIQM 1.6745 1.9596 3.0160 5.3267 4.0858 3.9742 UCIQE 0.5662 0.6456 0.6601 0.6678 0.6765 0.7149 8 Entropy 6.8204 7.5447 7.5100 7.4789 7.8109 7.9207 NIQE 2.3460 2.0196 2.2087 1.9138 2.1330 1.9728 UIQM 2.6129 3.6372 3.2890 6.3202 5.3160 4.8206 UCIQE 0.4998 0.6268 0.6128 0.6500 0.6461 0.6557 9 Entropy 5.9139 7.2692 7.1759 7.3783 7.1650 7.9291 NIQE 7.1514 5.1161 4.8472 5.2695 5.6411 4.7459 UIQM 2.6185 4.5069 4.3659 4.1789 6.4467 5.1585 UCIQE 0.3821 0.6198 0.6267 0.5725 0.5659 0.6563 10 Entropy 6.3024 6.6784 7.2983 7.0631 7.3797 7.8649 NIQE 5.6988 4.4734 4.1571 3.8446 4.2791 4.0721 UIQM 0.0243 1.6297 2.8276 6.0569 1.9074 2.6384 UCIQE 0.3585 0.4921 0.5559 0.5787 0.5476 0.6235 Average Entropy 6.7081 7.2625 7.3393 7.2548 7.5991 7.8894 NIQE 4.0809 3.4357 3.3346 3.3386 3.3743 3.2793 UIQM 1.3394 2.3170 2.9888 5.1073 3.5772 4.1517 UCIQE 0.4653 0.5784 0.6086 0.6131 0.6053 0.6434
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Jiqiang Lin, Mei Yu, Haiyong Xu, Gangyi Jiang. Underwater Image Restoration Based on Light Attenuation Prior and Background Light Fusion[J]. Laser & Optoelectronics Progress, 2021, 58(8): 0810013
Paper Information
Category: Image Processing
Received: Aug. 11, 2020
Accepted: Sep. 14, 2020
Published Online: Apr. 12, 2021
The Author Email: Mei Yu (yumei2@126.com)
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