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Related papers: Towards Image Ambient Lighting Normalization

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Image light source transfer (LLST), as the most challenging task in the domain of image relighting, has attracted extensive attention in recent years. In the latest research, LLST is decomposed three sub-tasks: scene reconversion, shadow…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Yuanzhi Wang , Tao Lu , Yanduo Zhang , Yuntao Wu

In the realm of Low-Light Image Enhancement (LLIE), existing research primarily focuses on enhancing images globally. However, many applications require local LLIE, where users are allowed to illuminate specific regions using an input mask,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Shihurong Yao , Yizhan Huang , Xiaogang Xu

Normalization techniques are important in different advanced neural networks and different tasks. This work investigates a novel dynamic learning-to-normalize (L2N) problem by proposing Exemplar Normalization (EN), which is able to learn…

Computer Vision and Pattern Recognition · Computer Science 2020-03-23 Ruimao Zhang , Zhanglin Peng , Lingyun Wu , Zhen Li , Ping Luo

Anomaly detection and localization in images is a growing field in computer vision. In this area, a seemingly understudied problem is anomaly clustering, i.e., identifying and grouping different types of anomalies in a fully unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Andrei-Timotei Ardelean , Tim Weyrich

Shadow removal is a task aimed at erasing regional shadows present in images and reinstating visually pleasing natural scenes with consistent illumination. While recent deep learning techniques have demonstrated impressive performance in…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Chong Wang , Yi Yu , Lanqing Guo , Bihan Wen

Batch Normalization (BN)(Ioffe and Szegedy 2015) normalizes the features of an input image via statistics of a batch of images and hence BN will bring the noise to the gradient of the training loss. Previous works indicate that the noise is…

Machine Learning · Computer Science 2019-09-19 Senwei Liang , Zhongzhan Huang , Mingfu Liang , Haizhao Yang

Deep Neural network learning for image processing faces major challenges related to changes in distribution across layers, which disrupt model convergence and performance. Activation normalization methods, such as Batch Normalization (BN),…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Bilal Faye , Hanane Azzag , Mustapha Lebbah , Djamel Bouchaffra

Although Convolution Neural Networks (CNNs) has made substantial progress in the low-light image enhancement task, one critical problem of CNNs is the paradox of model complexity and performance. This paper presents a novel SurroundNet…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Fei Zhou , Xin Sun , Junyu Dong , Haoran Zhao , Xiao Xiang Zhu

Portrait harmonization aims to composite a subject into a new background, adjusting its lighting and color to ensure harmony with the background scene. Existing harmonization techniques often only focus on adjusting the global color and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Mengwei Ren , Wei Xiong , Jae Shin Yoon , Zhixin Shu , Jianming Zhang , HyunJoon Jung , Guido Gerig , He Zhang

2D face analysis techniques, such as face landmarking, face recognition and face verification, are reasonably dependent on illumination conditions which are usually uncontrolled and unpredictable in the real world. An illumination robust…

Computer Vision and Pattern Recognition · Computer Science 2017-10-17 Wuming Zhang , Xi Zhao , Jean-Marie Morvan , Liming Chen

Image composition plays a common but important role in photo editing. To acquire photo-realistic composite images, one must adjust the appearance and visual style of the foreground to be compatible with the background. Existing deep…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Jun Ling , Han Xue , Li Song , Rong Xie , Xiao Gu

To enhance low-light images to normally-exposed ones is highly ill-posed, namely that the mapping relationship between them is one-to-many. Previous works based on the pixel-wise reconstruction losses and deterministic processes fail to…

Image and Video Processing · Electrical Eng. & Systems 2021-09-14 Yufei Wang , Renjie Wan , Wenhan Yang , Haoliang Li , Lap-Pui Chau , Alex C. Kot

Low-Light Image Enhancement (LLIE) is a key task in computational photography and imaging. The problem of enhancing images captured during night or in dark environments has been well-studied in the computer vision literature. However,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Juan C. Benito , Daniel Feijoo , Alvaro Garcia , Marcos V. Conde

Lighting is a determining factor in photography that affects the style, expression of emotion, and even quality of images. Creating or finding satisfying lighting conditions, in reality, is laborious and time-consuming, so it is of great…

Computer Vision and Pattern Recognition · Computer Science 2022-08-31 Zuo-Liang Zhu , Zhen Li , Rui-Xun Zhang , Chun-Le Guo , Ming-Ming Cheng

The extremes of lighting (e.g. too much or too little light) usually cause many troubles for machine and human vision. Many recent works have mainly focused on under-exposure cases where images are often captured in low-light conditions…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Hue Nguyen , Diep Tran , Khoi Nguyen , Rang Nguyen

Due to the lack of labels and the domain diversities, it is a challenge to study person re-identification in the cross-domain setting. An admirable method is to optimize the target model by assigning pseudo-labels for unlabeled samples…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Hongliang Zhang , Shoudong Han , Xiaofeng Pan , Jun Zhao

Diffusion models have recently motivated great success in many generation tasks like object removal. Nevertheless, existing image decomposition methods struggle to disentangle semi-transparent or transparent layer occlusions due to mask…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Zitong Wang , Hang Zhao , Qianyu Zhou , Xuequan Lu , Xiangtai Li , Yiren Song

Recent advances in computer vision take advantage of adversarial data augmentation to ameliorate the generalization ability of classification models. Here, we present an effective and efficient alternative that advocates adversarial…

Machine Learning · Computer Science 2021-03-24 Tianlong Chen , Yu Cheng , Zhe Gan , Jianfeng Wang , Lijuan Wang , Zhangyang Wang , Jingjing Liu

Remote sensing shadow removal, which aims to recover contaminated surface information, is tricky since shadows typically display overwhelmingly low illumination intensities. In contrast, the infrared image is robust toward significant light…

Computer Vision and Pattern Recognition · Computer Science 2024-06-26 Kaichen Chi , Wei Jing , Junjie Li , Qiang Li , Qi Wang

Active Learning has received significant attention in the field of machine learning for its potential in selecting the most informative samples for labeling, thereby reducing data annotation costs. However, we show that the reported lifts…

Machine Learning · Computer Science 2025-02-24 Thorben Werner , Johannes Burchert , Lars Schmidt-Thieme