基于红色暗通道先验和逆滤波的水下图像复原 
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Underwater Image Restoration Based on Red-Dark Channel Prior and Inverse Filtering
天津大学电气自动化与信息工程学院, 天津 300072
图 & 表
图 1. Jaffe-McGlamery水下光学成像模型
Fig. 1. Jaffe-McGlamery underwater optical imaging model
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图 2. 水下图像复原流程图
Fig. 2. Flow chart of underwater image restoration
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图 3. 珊瑚图像实验。(a)原始图像;(b) DCP算法;(c) ARDCP算法;(d)变分Retinex增强算法;(e) Fusion算法;(f)本文算法
Fig. 3. Image experiments of coral. (a) Original image; (b) DCP algorithm; (c) ARDCP algorithm; (d) variation Retinex enhancing algorithm; (e) Fusion algorithm; (f) proposed algorithm
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图 4. 潜水图像实验。(a)原始图像;(b) DCP算法;(c) RDCP算法;(d)变分Retinex增强算法;(e) Fusion算法;(f)本文算法
Fig. 4. Image experiments of diving. (a) Original image; (b) DCP algorithm; (c) ARDCP algorithm; (d) variation Retinex enhancing algorithm; (e) Fusion algorithm; (f) proposed algorithm
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图 5. 鱼群图像实验。(a)原始图像;(b) DCP算法;(c) ARDCP算法;(d)变分Retinex增强算法;(e) Fusion算法;(f)本文算法
Fig. 5. Image experiments of fishes. (a) Original image; (b) DCP algorithm; (c) ARDCP algorithm; (d) variation Retinex enhancing algorithm; (e) Fusion algorithm; (f) proposed algorithm
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表 1水下图像质量评价
Table1. Quality evaluation for underwater images
| Image | Index | Entropy | Gradient | NR-CDIQA | UCIQE |
|---|
| Coral | Original image | 7.5393 | 5.5160 | 3.4519 | 0.5829 | | DCP algorithm | 7.2768 | 6.1744 | 3.4795 | 0.6401 | | ARDCP algorithm | 7.6265 | 5.9119 | 3.4529 | 0.6223 | | Variation Retinex enhancing algorithm | 7.7233 | 7.1017 | 3.4146 | 0.6134 | | Fusion algorithm | 7.8477 | 10.0806 | 3.0454 | 0.6594 | | Proposed algorithm | 7.7864 | 10.0921 | 3.4815 | 0.7152 | | Diving | Original image | 6.6305 | 2.1309 | 2.6688 | 0.4358 | | DCP algorithm | 6.1982 | 3.0655 | 2.7993 | 0.6046 | | ARDCP algorithm | 7.1155 | 2.9138 | 3.3286 | 0.5477 | | Variation Retinex enhancing algorithm | 7.6684 | 4.7856 | 3.4488 | 0.5735 | | Fusion algorithm | 7.8085 | 7.2657 | 3.2574 | 0.6446 | | Proposed algorithm | 7.7630 | 8.2401 | 3.4668 | 0.6731 | | Fishes | Original image | 6.3023 | 1.9132 | 2.5500 | 0.4258 | | DCP algorithm | 6.9134 | 3.5461 | 2.3692 | 0.5609 | | ARDCP algorithm | 6.7726 | 2.8094 | 2.7640 | 0.5312 | | Variation Retinex enhancing algorithm | 7.7442 | 5.5673 | 3.4486 | 0.6317 | | Fusion algorithm | 7.8179 | 7.4415 | 3.3960 | 0.6672 | | Proposed algorithm | 7.8012 | 7.2631 | 3.4658 | 0.6802 |
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徐岩, 曾祥波. 基于红色暗通道先验和逆滤波的水下图像复原[J]. 激光与光电子学进展, 2018, 55(2): 021009. Yan Xu, Xiangbo Zeng. Underwater Image Restoration Based on Red-Dark Channel Prior and Inverse Filtering[J]. Laser & Optoelectronics Progress, 2018, 55(2): 021009.
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