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Learning-based underwater image enhancement (UIE) methods have made great progress. However, the lack of large-scale and high-quality paired training samples has become the main bottleneck hindering the development of UIE. The inter-frame…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Yaofeng Xie , Lingwei Kong , Kai Chen , Ziqiang Zheng , Xiao Yu , Zhibin Yu , Bing Zheng

Underwater imagery often suffers from severe degradation resulting in low visual quality and reduced object detection performance. This work aims to evaluate state-of-the-art image enhancement models, investigate their effects on underwater…

Image and Video Processing · Electrical Eng. & Systems 2025-04-21 Ali Awad , Ashraf Saleem , Sidike Paheding , Evan Lucas , Serein Al-Ratrout , Timothy C. Havens

Underwater image enhancement plays a crucial role in providing reliable visual information for underwater platforms, since strong absorption and scattering in water-related environments generally lead to image quality degradation. Existing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Yiqiang Zhou , Yifan Chen , Zhe Sun , Jijun Lu , Ye Zheng , Xuelong Li

In real underwater environments, downstream image recognition tasks such as semantic segmentation and object detection often face challenges posed by problems like blurring and color inconsistencies. Underwater image enhancement (UIE) has…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Bosen Lin , Feng Gao , Yanwei Yu , Junyu Dong , Qian Du

Underwater image enhancement, as a pre-processing step to improve the accuracy of the following object detection task, has drawn considerable attention in the field of underwater navigation and ocean exploration. However, most of the…

Computer Vision and Pattern Recognition · Computer Science 2020-09-29 Long Chen , Zheheng Jiang , Lei Tong , Zhihua Liu , Aite Zhao , Qianni Zhang , Junyu Dong , Huiyu Zhou

Single underwater image enhancement (UIE) is a challenging ill-posed problem, but its development is hindered by two major issues: (1) The labels in underwater reference datasets are pseudo labels, relying on these pseudo ground truths in…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Zhi Zhang , Minfu Li , Lu Li , Daoyi Chen

The purpose of this paper is to explore the use of underwater image enhancement techniques to improve keypoint detection and matching. By applying advanced deep learning models, including generative adversarial networks and convolutional…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Pedro Diaz-Garcia , Felix Escalona , Miguel Cazorla

Activities in underwater environments are paramount in several scenarios, which drives the continuous development of underwater image enhancement techniques. A major challenge in this domain is the depth at which images are captured, with…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Tatiana Taís Schein , Gustavo Pereira de Almeira , Stephanie Loi Brião , Rodrigo Andrade de Bem , Felipe Gomes de Oliveira , Paulo L. J. Drews-Jr

The light absorption and scattering of underwater impurities lead to poor underwater imaging quality. The existing data-driven based underwater image enhancement (UIE) techniques suffer from the lack of a large-scale dataset containing…

Computer Vision and Pattern Recognition · Computer Science 2023-07-05 Lintao Peng , Chunli Zhu , Liheng Bian

Underwater Image Enhancement (UIE) is essential for robust visual perception in marine applications. However, existing methods predominantly rely on uniform mapping tailored to average dataset distributions, leading to over-processing…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Hang Xu , Chen Long , Bing Wang , Hao Chen , Zhen Dong

Recent advances in deep learning, particularly neural networks, have significantly impacted a wide range of fields, including the automatic enhancement of underwater images. This paper presents a deep learning-based approach to improving…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Jose M. Montero , Jose-Luis Lisani

Due to the absorption and scattering effects of the water, underwater images tend to suffer from many severe problems, such as low contrast, grayed out colors and blurring content. To improve the visual quality of underwater images, we…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Hui Li , Xi Yang , ZhenMing Li , TianLun Zhang

Underwater visuals undergo various complex degradations, inevitably influencing the efficiency of underwater vision tasks. Recently, diffusion models were employed to underwater image enhancement (UIE) tasks, and gained SOTA performance.…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Chen Zhao , Chenyu Dong , Weiling Cai , Yueyue Wang

Visual inspection of underwater structures by vehicles, e.g. remotely operated vehicles (ROVs), plays an important role in scientific, military, and commercial sectors. However, the automatic extraction of information using software tools…

Computer Vision and Pattern Recognition · Computer Science 2020-02-18 Yousif Hashisho , Mohamad Albadawi , Tom Krause , Uwe Freiherr von Lukas

In this paper, we propose a Physical Imaging Guided perceptual framework for Underwater Image Quality Assessment (UIQA), termed PIGUIQA. First, we formulate UIQA as a comprehensive problem that considers the combined effects of direct…

Image and Video Processing · Electrical Eng. & Systems 2025-12-23 Weizhi Xian , Mingliang Zhou , Leong Hou U , Zhengguo Li

Underwater images often suffer from color distortion and low contrast resulting in various image types, due to the scattering and absorption of light by water. While it is difficult to obtain high-quality paired training samples with a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-11 Pan Mu , Hanning Xu , Zheyuan Liu , Zheng Wang , Sixian Chan , Cong Bai

Learning-based methods for underwater image enhancement (UWIE) have undergone extensive exploration. However, learning-based models are usually vulnerable to adversarial examples so as the UWIE models. To the best of our knowledge, there is…

Image and Video Processing · Electrical Eng. & Systems 2024-09-11 Siyu Zhai , Zhibo He , Xiaofeng Cong , Junming Hou , Jie Gui , Jian Wei You , Xin Gong , James Tin-Yau Kwok , Yuan Yan Tang

Owing to refraction, absorption, and scattering of light by suspended particles in water, raw underwater images suffer from low contrast, blurred details, and color distortion. These characteristics can significantly interfere with the…

Computer Vision and Pattern Recognition · Computer Science 2020-02-24 Yuan Zhou , Kangming Yan

Background: Underwater images, in general, suffer from low contrast and high color distortions due to the non-uniform attenuation of the light as it propagates through the water. In addition, the degree of attenuation varies with the…

Image and Video Processing · Electrical Eng. & Systems 2022-01-20 Prasen Kumar Sharma , Ira Bisht , Arijit Sur

To assist underwater object detection for better performance, image enhancement technology is often used as a pre-processing step. However, most of the existing enhancement methods tend to pursue the visual quality of an image, instead of…

Computer Vision and Pattern Recognition · Computer Science 2023-02-07 Yanling Qiu , Qianxue Feng , Boqin Cai , Hongan Wei , Weiling Chen