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A Hybrid Method for Underwater Image Preprocessing

Hengxu Ma, Kun Wang
2019 International Journal of Sciences  
This paper provides a hybrid method for underwater image restoration.  ...  Firstly, for the color distortion caused by different light attenuation characteristics, the automatic color balance algorithm which based on dynamic threshold is used to correct the color of underwater  ...  The hybrid method The correction method of underwater image color distortion Due to the difference in the imaging model of the underwater image, the color of underwater image is different, and the attenuation  ... 
doi:10.18483/ijsci.2089 fatcat:hhuol6u62jeylpy7iklixuvadu

Underwater image enhancement based on global and local equalization of histogram and dual-image multi-scale fusion

Linfeng Bai, Weidong Zhang, Xipeng Pan, Chenping Zhao
2020 IEEE Access  
[41] proposed a two-step method for single underwater image enhancement, which consisted of color correction and optimal contrast.  ...  [52] proposed a real-time color correction method based on unsupervised generative network for monocular underwater images. Guo et al.  ... 
doi:10.1109/access.2020.3009161 fatcat:lcadtbrbxfbcfblzupv3l7dkfm

A Review of Enhancement Techniques for Underwater Images

Sonal Yadav
2020 International Journal for Research in Applied Science and Engineering Technology  
This paper proposes a reason for the underwater image degradation and literature survey of various enhancement techniques for underwater images.  ...  Furthermore, the comparison for various image enhancement techniques is elaborated and finally, an enhancement technique for underwater images is summarized and the suggestions for future research are  ...  For bluish and greenish tone present in underwater image, a hybridized concept of color correction and fusion techniques are used [10] .  ... 
doi:10.22214/ijraset.2020.7033 fatcat:24iyv6tpirfqxfcyxnwy3andqy

A joint adaptive evolutionary model towards optical image contrast enhancement and geometrical reconstruction approach in underwater remote sensing

Mohammad Kazem Moghimi, Farahnaz Mohanna
2019 SN Applied Sciences  
The main reason for using hybrid contrast techniques includes the adaptive enhancement and color correction.  ...  As a result, a process of imaging improvement is highly complex with some conditions. Particularly, this issue is harmful for the underwater environments as well as its highly complexity.  ...  [10] published a study for enhancing the resolution of underwater images with the purpose of correction in motion transfer.  ... 
doi:10.1007/s42452-019-1255-0 fatcat:rbcprsh65jdfxp4jd34lffqi6m

Compare various Circuits Area Reduction using Genetic Algorithm and Hybrid Partitioning Algorithm

2019 International Journal of Advanced Trends in Computer Science and Engineering  
This manuscript is a review on various approaches for under water image enhancement over the last few years.  ...  In the past few years, many approaches were put forwarded to developvisibility of underwater pictures by removing haze and some color correction techniques are introduced to improve the perception of underwater  ...  B.Zhangetal. [14] has proposed a method for optimization of underwater images.  ... 
doi:10.30534/ijatcse/2018/09762018 fatcat:qjo5qthvtncntpvfy2rjeopkxa

Underwater color constancy: enhancement of automatic live fish recognition

Majed Chambah, Dahbia Semani, Arnaud Renouf, Pierre Courtellemont, Alessandro Rizzi, Reiner Eschbach, Gabriel G. Marcu
2003 Color Imaging IX: Processing, Hardcopy, and Applications  
The proposed color correction method is based on ACE model, an unsupervised color equalization algorithm.  ...  We present in this paper some advances in color restoration of underwater images, especially with regard to the strong and non uniform color cast which is typical of underwater images.  ...  CONCLUSION We have presented in this paper an automatic method for underwater images color cast removal.  ... 
doi:10.1117/12.524540 dblp:conf/clrimg/ChambahSRCR04 fatcat:eox4ovfblfegjfclf3cj3kq7he

Perceptual underwater image enhancement with deep learning and physical priors [article]

Long Chen, Zheheng Jiang, Lei Tong, Zhihua Liu, Aite Zhao, Qianni Zhang, Junyu Dong, Huiyu Zhou
2020 arXiv   pre-print
model for real-world underwater images.  ...  In addition, due to the lack of training data, a hybrid underwater image synthesis model, which fuses physical priors and data-driven cues, is proposed to synthesize training data and generalise our enhancement  ...  [8] proposed a Retinex-based method for underwater image enhancement, which consists of color correction, layer decomposition and enhancement. Zhang et al.  ... 
arXiv:2008.09697v2 fatcat:mxjqe4v2fbhq3in44wghzp5lyi

A Benchmark dataset for both underwater image enhancement and underwater object detection [article]

Long Chen, Lei Tong, Feixiang Zhou, Zheheng Jiang, Zhenyang Li, Jialin Lv, Junyu Dong, Huiyu Zhou
2020 arXiv   pre-print
The OUC dataset provides a platform for researchers to comprehensive study the influence of underwater image enhancement algorithms on the underwater object detection task.  ...  To investigate how the underwater image enhancement methods influence the following underwater object detection tasks, in this paper, we provide a large-scale underwater object detection dataset with both  ...  The transform domain methods [23] first transform the captured underwater image into a specific domain, and then perform adjustment for haze removal and color correction.  ... 
arXiv:2006.15789v1 fatcat:skepaowmybbxjncvckgo7vhocm

A Hybrid Framework for Underwater Image Enhancement by Dehazing

Xinjie Li, Guojia Hou, Lu Tan, Wanquan Liu
2020 IEEE Access  
CONCLUSION AND FUTURE WORK For underwater image enhancement, we propose a hybrid framework integrating a developed UWB technique and a VCSE model to improve the visual quality of underwater images.  ...  In [47] , a two-step approach was proposed for underwater image enhancement including color correction and contrast enhancement.  ... 
doi:10.1109/access.2020.3034275 fatcat:m4obeyohy5achlaqexzykxuin4

Hybrid technique for improving underwater image

A. Chrispin Jiji, Nagaraj Ramrao
2021 3C Tecnología  
So, to improve the perception, we intend a Non-Locally Centralized Method (NLCM) for deblurring underwater descriptions.  ...  However, due to degradation of observed picture, conventional forms are not correct enough for faithful reconstruction.  ...  ACKNOWLEDGEMENT We gratefully thank the Visvesvaraya Technological University, Jnana Sangama, Belagavi for their extended support to this Research work.  ... 
doi:10.17993/3ctecno.2021.specialissue8.645-665 fatcat:a2iznd6eqjac3e2p6iunxrttyy

Improved underwater image enhancement algorithms based on partial differential equations (PDEs) [article]

U. A. Nnolim
2017 arXiv   pre-print
The experimental results of improved underwater image enhancement algorithms based on partial differential equations (PDEs) are presented in this report.  ...  Conclusion and future work We have presented an improved PDE-based scheme for single underwater image enhancement in addition to colour correction pre-and processing steps based on colour space conversions  ...  For example, the CLAHE method is a powerful localized operator when applied correctly. However, colour distortion is unavoidable with such algorithms.  ... 
arXiv:1705.04272v1 fatcat:4sd3schdhzbo5d76fatxnf6e6y

Development and Performance Verification of Real-time Hybrid Navigation System for Autonomous Underwater Vehicles

Hyun Ki Kim, Woo Chae Jung, Jeong Won Kim, Chang Woo Nam
2016 Journal of Positioning Navigation and Timing  
ACKNOWLEDGMENTS This research is part of the project "Development of Autonomous Underwater Vehicles for Underwater Search (Contract Number: 201112131120)".  ...  A dedicated jig for verification was manufactured in order to verify the hybrid navigation algorithm in real sea. The test method was similar to Hardware In the Loop Simulator.  ...  Generally, inertial sensors, satellite navigation system, radar, LiDAR, and images are used for autonomous car.  ... 
doi:10.11003/jpnt.2016.5.2.097 fatcat:qe5jhdwebndt5pwoaszw2bzvlm

Color Correction Based on CFA and Enhancement Based on Retinex with Dense Pixels for Underwater Images

Changli Li, Shiqiang Tang, Hon Keung Kwan, Jingwen Yan, Teng Zhou
2020 IEEE Access  
hybrid method to correct underwater images [35] .  ...  FIGURE 1 . 1 Path for MR FIGURE 2 . 2 Flowchart of our enhancement and color-correction method for underwater images.  ... 
doi:10.1109/access.2020.3019354 fatcat:rg3ke74perdujguwxtexuzvo7i

HybrUR: A Hybrid Physical-Neural Solution for Unsupervised Underwater Image Restoration [article]

Shuaizheng Yan, Xingyu Chen, Zhengxing Wu, Jian Wang, Yue Lu, Min Tan, Junzhi Yu
2021 arXiv   pre-print
Robust vision restoration for an underwater image remains a challenging problem. For the lack of aligned underwater-terrestrial image pairs, the unsupervised method is more suited to this task.  ...  However, the pure data-driven unsupervised method usually has difficulty in achieving realistic color correction for lack of optical constraint.  ...  Such methods include classical histogram equalization, white balance, wavelet transform, and some color correction methods specifically for underwater images [6] , [9] , [14] .  ... 
arXiv:2107.02660v1 fatcat:zikeowbvvre2rnns5iu7hbgezq

Monocular Visual SLAM for Underwater Navigation in Turbid and Dynamic Environments

Chinthaka Amarasinghe, Asanga Ratnaweera, Sanjeeva Maitripala
2020 American Journal of Mechanical Engineering  
In this paper, we proposed UW-SLAM (Underwater SLAM), a new monocular visual SLAM algorithm focused on the underwater environment which addresses the turbidity and dynamism.  ...  The proposed method was evaluated with several underwater datasets with comparison to the state of the art monocular SLAM methods.  ...  Therefore, the images need extensive correction before using them in a navigational algorithm. There have been many researches published regarding the underwater image correction and enhancement.  ... 
doi:10.12691/ajme-8-2-5 fatcat:iclpghxltrc5lljb3qknka3oiu
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