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Related papers: Anchor then Polish for Low-light Enhancement

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Existing image enhancement methods fall short of expectations because with them it is difficult to improve global and local image contrast simultaneously. To address this problem, we propose a histogram equalization-based method that adapts…

Computer Vision and Pattern Recognition · Computer Science 2022-09-15 Xiaomeng Wu , Takahito Kawanishi , Kunio Kashino

Low-light image enhancement aims to improve the perception of images collected in dim environments and provide high-quality data support for image recognition tasks. When dealing with photos captured under non-uniform illumination, existing…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Xiao Fang , Xin Gao , Baofeng Li , Feng Zhai , Yu Qin , Zhihang Meng , Jiansheng Lu , Chun Xiao

As vision based perception methods are usually built on the normal light assumption, there will be a serious safety issue when deploying them into low light environments. Recently, deep learning based methods have been proposed to enhance…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Junjie Hu , Xiyue Guo , Junfeng Chen , Guanqi Liang , Fuqin Deng , Tin lun Lam

Images captured in low-light environment often suffer from complex degradation. Simply adjusting light would inevitably result in burst of hidden noise and color distortion. To seek results with satisfied lighting, cleanliness, and realism…

Computer Vision and Pattern Recognition · Computer Science 2021-12-01 Qiming Hu , Xiaojie Guo

A simple and effective low-light image enhancement method based on a noise-aware texture-preserving retinex model is proposed in this work. The new method, called NATLE, attempts to strike a balance between noise removal and natural texture…

Computer Vision and Pattern Recognition · Computer Science 2020-09-04 Zohreh Azizi , Xuejing Lei , C. -C Jay Kuo

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

Retinex model has been applied to low-light image enhancement in many existing methods. More appropriate decomposition of a low-light image can help achieve better image enhancement. In this paper, we propose a new pixel-level non-local…

Image and Video Processing · Electrical Eng. & Systems 2021-06-16 Hao Hou , Yingkun Hou , Yuxuan Shi , Benzheng Wei , Jun Xu

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

Low-light images, characterized by inadequate illumination, pose challenges of diminished clarity, muted colors, and reduced details. Low-light image enhancement, an essential task in computer vision, aims to rectify these issues by…

Computer Vision and Pattern Recognition · Computer Science 2024-10-14 Hossein Shakibania , Sina Raoufi , Hassan Khotanlou

Prompt tuning (PT), as an emerging resource-efficient fine-tuning paradigm, has showcased remarkable effectiveness in improving the task-specific transferability of vision-language models. This paper delves into a previously overlooked…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Fei Zhang , Tianfei Zhou , Jiangchao Yao , Ya Zhang , Ivor W. Tsang , Yanfeng Wang

All existing image enhancement methods, such as HDR tone mapping, cannot recover A/D quantization losses due to insufficient or excessive lighting, (underflow and overflow problems). The loss of image details due to A/D quantization is…

Computer Vision and Pattern Recognition · Computer Science 2018-03-22 Chang Liu , Xiaolin Wu , Xiao Shu

Enhancing low-light images while maintaining natural colors is a challenging problem due to camera processing variations and limited access to photos with ground-truth lighting conditions. The latter is a crucial factor for supervised…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Wojciech Kozłowski , Michał Szachniewicz , Michał Stypułkowski , Maciej Zięba

In this paper, we propose an end to end solution for image matting i.e high-precision extraction of foreground objects from natural images. Image matting and background detection can be achieved easily through chroma keying in a studio…

Computer Vision and Pattern Recognition · Computer Science 2020-03-26 Rishab Sharma , Rahul Deora , Anirudha Vishvakarma

Most prior semantic segmentation methods have been developed for day-time scenes, while typically underperforming in night-time scenes due to insufficient and complicated lighting conditions. In this work, we tackle this challenge by…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Zhixiang Wei , Lin Chen , Tao Tu , Huaian Chen , Pengyang Ling , Yi Jin

Existing low-rank tensor completion (LRTC) approaches aim at restoring a partially observed tensor by imposing a global low-rank constraint on the underlying completed tensor. However, such a global rank assumption suffers the trade-off…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Rui Lin , Cong Chen , Ngai Wong

Over the last few years, deep learning based approaches have achieved outstanding improvements in natural image matting. Many of these methods can generate visually plausible alpha estimations, but typically yield blurry structures or…

Computer Vision and Pattern Recognition · Computer Science 2020-01-14 Yaoyi Li , Hongtao Lu

Parameter-Efficient FineTuning (PEFT) methods have recently gained significant popularity thanks to the widespread availability of large-scale pretrained models. These methods allow for quick adaptation to downstream tasks with minimal…

Machine Learning · Computer Science 2025-05-20 Massimo Bini , Leander Girrbach , Zeynep Akata

Painterly image harmonization aims to harmonize a photographic foreground object on the painterly background. Different from previous auto-encoder based harmonization networks, we develop a progressive multi-stage harmonization network,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Li Niu , Yan Hong , Junyan Cao , Liqing Zhang

Unpaired image-to-image translation (UNIT) aims to map images between two visual domains without paired training data. However, given a UNIT model trained on certain domains, it is difficult for current methods to incorporate new domains…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Siyu Huang , Jie An , Donglai Wei , Zudi Lin , Jiebo Luo , Hanspeter Pfister

Low-light images, i.e. the images captured in low-light conditions, suffer from very poor visibility caused by low contrast, color distortion and significant measurement noise. Low-light image enhancement is about improving the visibility…

Image and Video Processing · Electrical Eng. & Systems 2020-07-08 Jinxiu Liang , Yong Xu , Yuhui Quan , Jingwen Wang , Haibin Ling , Hui Ji