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Underwater image restoration attracts significant attention due to its importance in unveiling the underwater world. This paper elaborates on a novel method that achieves state-of-the-art results for underwater image restoration based on…

Computer Vision and Pattern Recognition · Computer Science 2021-04-16 Junlin Han , Mehrdad Shoeiby , Tim Malthus , Elizabeth Botha , Janet Anstee , Saeed Anwar , Ran Wei , Lars Petersson , Mohammad Ali Armin

Underwater imaging grapples with challenges from light-water interactions, leading to color distortions and reduced clarity. In response to these challenges, we propose a novel Color Balance Prior \textbf{Guided} \textbf{Hyb}rid…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Xiaojiao Guo , Xuhang Chen , Shuqiang Wang , Chi-Man Pun

Recovery of true color from underwater images is an ill-posed problem. This is because the wide-band attenuation coefficients for the RGB color channels depend on object range, reflectance, etc. which are difficult to model. Also, there is…

Computer Vision and Pattern Recognition · Computer Science 2022-12-19 Neham Jain , Gopi Matta , Kaushik Mitra

Underwater image restoration and enhancement are crucial for correcting color distortion and restoring image details, thereby establishing a fundamental basis for subsequent underwater visual tasks. However, current deep learning…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Yufeng Tian , Yifan Chen , Zhe Sun , Libang Chen , Mingyu Dou , Jijun Lu , Ye Zheng , Xuelong Li

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

Images acquired during underwater activities suffer from environmental properties of the water, such as turbidity and light attenuation. These phenomena cause color distortion, blurring, and contrast reduction. In addition, irregular…

Image and Video Processing · Electrical Eng. & Systems 2022-08-09 Claudio D. Mello , Bryan U. Moreira , Paulo J. O. Evald , Paulo L. Drews , Silvia S. Botelho

Robust vision restoration of underwater images remains a challenge. Owing to the lack of well-matched underwater and in-air images, unsupervised methods based on the cyclic generative adversarial framework have been widely investigated in…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Shuaizheng Yan , Xingyu Chen , Zhengxing Wu , Min Tan , Junzhi Yu

Underwater image enhancement has been attracting much attention due to its significance in marine engineering and aquatic robotics. Numerous underwater image enhancement algorithms have been proposed in the last few years. However, these…

Computer Vision and Pattern Recognition · Computer Science 2019-11-27 Chongyi Li , Chunle Guo , Wenqi Ren , Runmin Cong , Junhui Hou , Sam Kwong , Dacheng Tao

In an underwater scene, wavelength-dependent light absorption and scattering degrade the visibility of images, causing low contrast and distorted color casts. To address this problem, we propose a convolutional neural network based image…

Computer Vision and Pattern Recognition · Computer Science 2018-07-11 Saeed Anwar , Chongyi Li , Fatih Porikli

Underwater image restoration has been a challenging problem for decades since the advent of underwater photography. Most solutions focus on shallow water scenarios, where the scene is uniformly illuminated by the sunlight. However, the vast…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Yifan Song , Mengkun She , Kevin Köser

Underwater Image Rendering aims to generate a true-tolife underwater image from a given clean one, which could be applied to various practical applications such as underwater image enhancement, camera filter, and virtual gaming. We explore…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Tian Ye , Sixiang Chen , Yun Liu , Yi Ye , Erkang Chen , Yuche Li

Underwater images are degraded by the selective attenuation of light that distorts colours and reduces contrast. The degradation extent depends on the water type, the distance between an object and the camera, and the depth under the water…

Computer Vision and Pattern Recognition · Computer Science 2020-12-23 Chau Yi Li , Riccardo Mazzon , Andrea Cavallaro

This work proposes a method for underwater image enhancement using the principle of histogram equalization. Since underwater images have a global strong dominant colour, their colourfulness and contrast are often degraded. Before applying…

Image and Video Processing · Electrical Eng. & Systems 2021-09-21 Anushka Yadav , Mayank Upadhyay , Ghanapriya Singh

Underwater imagery is often compromised by factors such as color distortion and low contrast, posing challenges for high-level vision tasks. Recent underwater image restoration (UIR) methods either analyze the input image at full…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Alik Pramanick , Arijit Sur , V. Vijaya Saradhi

The exploration of underwater environments is essential for applications such as biological research, archaeology, and infrastructure maintenanceHowever, underwater imaging is challenging due to the waters unique properties, including…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Ozer Can Devecioglu , Serkan Kiranyaz , Turker Ince , Moncef Gabbouj

Underwater imagery often exhibits distorted coloration as a result of light-water interactions, which complicates the study of benthic environments in marine biology and geography. In this research, we propose an algorithm to restore the…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Tianyi Zhang , Matthew Johnson-Roberson

The challenges in recovering underwater images are the presence of diverse degradation factors and the lack of ground truth images. Although synthetic underwater image pairs can be used to overcome the problem of inadequately observing…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Zhenwei Zhang , Haorui Yan , Ke Tang , Yuping Duan

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

UAV-borne hyperspectral remote sensing has emerged as a promising approach for underwater target detection (UTD). However, its effectiveness is hindered by spectral distortions in nearshore environments, which compromise the accuracy of…

Computer Vision and Pattern Recognition · Computer Science 2025-02-21 Jiahao Qi , Chuanhong Zhou , Xingyue Liu , Chen Chen , Dehui Zhu , Kangcheng Bin , Ping Zhong

Accurate image-based bathymetric mapping in shallow waters remains challenging due to the complex optical distortions such as wave induced patterns, scattering and sunglint, introduced by the dynamic water surface, the water column…

Image and Video Processing · Electrical Eng. & Systems 2025-11-12 Maximilian Kromer , Panagiotis Agrafiotis , Begüm Demir
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