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Evaluating the performance of low-light image enhancement (LLE) is highly subjective, thus making integrating human preferences into image enhancement a necessity. Existing methods fail to consider this and present a series of potentially…

Computer Vision and Pattern Recognition · Computer Science 2023-05-03 Ling Li , Dong Liang , Yuanhang Gao , Sheng-Jun Huang , Songcan Chen

In recent years, significant progress has been made in image recognition technology based on deep neural networks. However, improving recognition performance under low-light conditions remains a significant challenge. This study addresses…

Computer Vision and Pattern Recognition · Computer Science 2025-01-09 Seitaro Ono , Yuka Ogino , Takahiro Toizumi , Atsushi Ito , Masato Tsukada

Current deep learning-based low-light image enhancement methods often struggle with high-resolution images, and fail to meet the practical demands of visual perception across diverse and unseen scenarios. In this paper, we introduce a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Tomáš Chobola , Yu Liu , Hanyi Zhang , Julia A. Schnabel , Tingying Peng

Low-light image enhancement (LLIE) aims at improving the illumination and visibility of dark images with lighting noise. To handle the real-world low-light images often with heavy and complex noise, some efforts have been made for joint…

Computer Vision and Pattern Recognition · Computer Science 2022-11-16 Jiahuan Ren , Zhao Zhang , Richang Hong , Mingliang Xu , Yi Yang , Shuicheng Yan

Although significant progress has been made in enhancing visibility, retrieving texture details, and mitigating noise in Low-Light (LL) images, the challenge persists in applying current Low-Light Image Enhancement (LLIE) methods to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Han Zhou , Wei Dong , Xiaohong Liu , Yulun Zhang , Guangtao Zhai , Jun Chen

Many existing methods for low-light image enhancement (LLIE) based on Retinex theory ignore important factors that affect the validity of this theory in digital imaging, such as noise, quantization error, non-linearity, and dynamic range…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Shangquan Sun , Wenqi Ren , Jingyang Peng , Fenglong Song , Xiaochun Cao

Low-light hazy scenes commonly appear at dusk and early morning. The visual enhancement for low-light hazy images is an ill-posed problem. Even though numerous methods have been proposed for image dehazing and low-light enhancement…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Chaoqun Zhuang , Yunfei Liu , Sijia Wen , Feng Lu

This paper presents a novel network structure with illumination-aware gamma correction and complete image modelling to solve the low-light image enhancement problem. Low-light environments usually lead to less informative large-scale dark…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Yinglong Wang , Zhen Liu , Jianzhuang Liu , Songcen Xu , Shuaicheng Liu

In this paper, we present a simple yet highly effective "free lunch" solution for low-light image enhancement (LLIE), which aims to restore low-light images as if acquired in well-illuminated environments. Our method necessitates no…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Joshua Cho , Sara Aghajanzadeh , Zhen Zhu , D. A. Forsyth

Low-Light Image Enhancement (LLIE) is a crucial computer vision task that aims to restore detailed visual information from corrupted low-light images. Many existing LLIE methods are based on standard RGB (sRGB) space, which often produce…

Computer Vision and Pattern Recognition · Computer Science 2025-03-03 Qingsen Yan , Yixu Feng , Cheng Zhang , Guansong Pang , Kangbiao Shi , Peng Wu , Wei Dong , Jinqiu Sun , Yanning Zhang

Low-light image enhancement (LLIE) aims to improve illumination while preserving high-quality color and texture. However, existing methods often fail to extract reliable feature representations due to severely degraded pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Xu Wu , Zhihui Lai , Xianxu Hou , Jie Zhou , Ya-nan Zhang , Linlin Shen

This paper reviews the NTIRE 2024 low light image enhancement challenge, highlighting the proposed solutions and results. The aim of this challenge is to discover an effective network design or solution capable of generating brighter,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Xiaoning Liu , Zongwei Wu , Ao Li , Florin-Alexandru Vasluianu , Yulun Zhang , Shuhang Gu , Le Zhang , Ce Zhu , Radu Timofte , Zhi Jin , Hongjun Wu , Chenxi Wang , Haitao Ling , Yuanhao Cai , Hao Bian , Yuxin Zheng , Jing Lin , Alan Yuille , Ben Shao , Jin Guo , Tianli Liu , Mohao Wu , Yixu Feng , Shuo Hou , Haotian Lin , Yu Zhu , Peng Wu , Wei Dong , Jinqiu Sun , Yanning Zhang , Qingsen Yan , Wenbin Zou , Weipeng Yang , Yunxiang Li , Qiaomu Wei , Tian Ye , Sixiang Chen , Zhao Zhang , Suiyi Zhao , Bo Wang , Yan Luo , Zhichao Zuo , Mingshen Wang , Junhu Wang , Yanyan Wei , Xiaopeng Sun , Yu Gao , Jiancheng Huang , Hongming Chen , Xiang Chen , Hui Tang , Yuanbin Chen , Yuanbo Zhou , Xinwei Dai , Xintao Qiu , Wei Deng , Qinquan Gao , Tong Tong , Mingjia Li , Jin Hu , Xinyu He , Xiaojie Guo , Sabarinathan , K Uma , A Sasithradevi , B Sathya Bama , S. Mohamed Mansoor Roomi , V. Srivatsav , Jinjuan Wang , Long Sun , Qiuying Chen , Jiahong Shao , Yizhi Zhang , Marcos V. Conde , Daniel Feijoo , Juan C. Benito , Alvaro García , Jaeho Lee , Seongwan Kim , Sharif S M A , Nodirkhuja Khujaev , Roman Tsoy , Ali Murtaza , Uswah Khairuddin , Ahmad 'Athif Mohd Faudzi , Sampada Malagi , Amogh Joshi , Nikhil Akalwadi , Chaitra Desai , Ramesh Ashok Tabib , Uma Mudenagudi , Wenyi Lian , Wenjing Lian , Jagadeesh Kalyanshetti , Vijayalaxmi Ashok Aralikatti , Palani Yashaswini , Nitish Upasi , Dikshit Hegde , Ujwala Patil , Sujata C , Xingzhuo Yan , Wei Hao , Minghan Fu , Pooja choksy , Anjali Sarvaiya , Kishor Upla , Kiran Raja , Hailong Yan , Yunkai Zhang , Baiang Li , Jingyi Zhang , Huan Zheng

We study human pose estimation in extremely low-light images. This task is challenging due to the difficulty of collecting real low-light images with accurate labels, and severely corrupted inputs that degrade prediction quality…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Sohyun Lee , Jaesung Rim , Boseung Jeong , Geonu Kim , Byungju Woo , Haechan Lee , Sunghyun Cho , Suha Kwak

Currently, low-light conditions present a significant challenge for machine cognition. In this paper, rather than optimizing models by assuming that human and machine cognition are correlated, we use zero-reference low-light enhancement to…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Igor Morawski , Kai He , Shusil Dangi , Winston H. Hsu

Low-light images are not conducive to human observation and computer vision algorithms due to their low visibility. Although many image enhancement techniques have been proposed to solve this problem, existing methods inevitably introduce…

Computer Vision and Pattern Recognition · Computer Science 2017-11-03 Zhenqiang Ying , Ge Li , Wen Gao

This paper presents a comprehensive survey of low-light image and video enhancement, addressing two primary challenges in the field. The first challenge is the prevalence of mixed over-/under-exposed images, which are not adequately…

Computer Vision and Pattern Recognition · Computer Science 2024-01-02 Shen Zheng , Yiling Ma , Jinqian Pan , Changjie Lu , Gaurav Gupta

Image degradation caused by complex lighting conditions such as low-light and backlit scenarios is commonly encountered in real-world environments, significantly affecting image quality and downstream vision tasks. Most existing methods…

Computer Vision and Pattern Recognition · Computer Science 2025-08-20 Ziang Wang , Xiaoqin Wang , Dingyi Wang , Qiang Li , Shushan Qiao

Image enhancement helps to generate balanced lighting distributions over faces. Our goal is to get an illuminance-balanced enhanced face image from a single view. Traditionally, image enhancement methods ignore the 3D geometry of the face…

Image and Video Processing · Electrical Eng. & Systems 2022-07-05 Qiulin Chen , Jan P. Allebach

Low-light image enhancement (LLIE) aims to restore natural visibility, color fidelity, and structural detail under severe illumination degradation. State-of-the-art (SOTA) LLIE techniques often rely on large models and multi-stage training,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-29 Alexandru Brateanu , Tingting Mu , Codruta Ancuti , Cosmin Ancuti

Deep learning-based low-light image enhancers have made significant progress in recent years, with a trend towards achieving satisfactory visual quality while gradually reducing the number of parameters and improving computational…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Nan An , Long Ma , Guangchao Han , Xin Fan , RIsheng Liu