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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

Image generation using diffusion models have demonstrated outstanding learning capabilities, effectively capturing the full distribution of the training dataset. They are known to generate wide variations in sampled images, albeit with a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Rahul Shenoy , Zhihong Pan , Kaushik Balakrishnan , Qisen Cheng , Yongmoon Jeon , Heejune Yang , Jaewon Kim

Conditional diffusion models can create unseen images in various settings, aiding image interpolation. Interpolation in latent spaces is well-studied, but interpolation with specific conditions like text or poses is less understood. Simple…

Computer Vision and Pattern Recognition · Computer Science 2024-10-07 Qiyuan He , Jinghao Wang , Ziwei Liu , Angela Yao

In recent years, Diffusion Models have become the new state-of-the-art in deep generative modeling, ending the long-time dominance of Generative Adversarial Networks. Inspired by the Regularization by Denoising principle, we introduce an…

Image and Video Processing · Electrical Eng. & Systems 2025-03-31 Pasquale Cascarano , Lorenzo Stacchio , Andrea Sebastiani , Alessandro Benfenati , Ulugbek S. Kamilov , Gustavo Marfia

As latent diffusion models (LDMs) democratize image generation capabilities, there is a growing need to detect fake images. A good detector should focus on the generative models fingerprints while ignoring image properties such as semantic…

Computer Vision and Pattern Recognition · Computer Science 2025-02-27 Anirudh Sundara Rajan , Utkarsh Ojha , Jedidiah Schloesser , Yong Jae Lee

Minimum distortion steganography is currently the mainstream method for modification-based steganography. A key issue in this method is how to define steganographic distortion. With the rapid development of deep learning technology, the…

Cryptography and Security · Computer Science 2025-04-22 Xiangkun Wang , Kejiang Chen , Yuang Qi , Ruiheng Liu , Weiming Zhang , Nenghai Yu

Learning-based methods have made promising advances in low-light RAW image enhancement, while their capability to extremely dark scenes where the environmental illuminance drops as low as 0.0001 lux remains to be explored due to the lack of…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Hai Jiang , Binhao Guan , Zhen Liu , Xiaohong Liu , Jian Yu , Zheng Liu , Songchen Han , Shuaicheng Liu

Existing deep learning-based low-light enhancement methods are typically trained on limited datasets with single enhancement targets, which restricts their generalization ability and controllability in real-world applications. To overcome…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Yufeng Yang , Jianzhuang Liu , Jisheng Chu , Yuqi Peng , Xianfang Zeng , Jiancheng Huang , Shifeng Chen

Diffusion models have demonstrated superior performance across various generative tasks including images, videos, and audio. However, they encounter difficulties in directly generating high-resolution samples. Previously proposed solutions…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Juno Hwang , Yong-Hyun Park , Junghyo Jo

Low-light image enhancement is challenging in that it needs to consider not only brightness recovery but also complex issues like color distortion and noise, which usually hide in the dark. Simply adjusting the brightness of a low-light…

Image and Video Processing · Electrical Eng. & Systems 2020-03-17 Feifan Lv , Yu Li , Feng Lu

The diffusion model presents a powerful ability to capture the entire (conditional) data distribution. However, due to the lack of sufficient training and data to learn to cover low-probability areas, the model will be penalized for failing…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Xingyu Zhou , Qifan Li , Xiaobin Hu , Hai Chen , Shuhang Gu

Fine-tuning vision-language models (VLMs) with large amounts of unlabeled data has recently garnered significant interest. However, a key challenge remains the lack of high-quality pseudo-labeled data. Current pseudo-labeling strategies…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Hairui Ren , Fan Tang , He Zhao , Zixuan Wang , Dandan Guo , Yi Chang

Our goal is to develop fine-grained real-image editing methods suitable for real-world applications. In this paper, we first summarize four requirements for these methods and propose a novel diffusion-based image editing framework with…

Computer Vision and Pattern Recognition · Computer Science 2023-06-01 Naoki Matsunaga , Masato Ishii , Akio Hayakawa , Kenji Suzuki , Takuya Narihira

Underwater images are severely degraded by wavelength-dependent light absorption and scattering, resulting in color distortion, low contrast, and loss of fine details that hinder vision-based underwater applications. To address these…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Afrah Shaahid , Muzammil Behzad

Light fields (LFs), conducive to comprehensive scene radiance recorded across angular dimensions, find wide applications in 3D reconstruction, virtual reality, and computational photography.However, the LF acquisition is inevitably…

Computer Vision and Pattern Recognition · Computer Science 2024-02-02 Ruisheng Gao , Yutong Liu , Zeyu Xiao , Zhiwei Xiong

Getting rid of the fundamental limitations in fitting to the paired training data, recent unsupervised low-light enhancement methods excel in adjusting illumination and contrast of images. However, for unsupervised low light enhancement,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Zhangkai Ni , Wenhan Yang , Hanli Wang , Shiqi Wang , Lin Ma , Sam Kwong

Latent diffusion models (LDMs) power state-of-the-art high-resolution generative image models. LDMs learn the data distribution in the latent space of an autoencoder (AE) and produce images by mapping the generated latents into RGB image…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Tariq Berrada , Pietro Astolfi , Melissa Hall , Marton Havasi , Yohann Benchetrit , Adriana Romero-Soriano , Karteek Alahari , Michal Drozdzal , Jakob Verbeek

Despite the significant progress made by all-in-one models in universal image restoration, existing methods suffer from a generalization bottleneck in real-world scenarios, as they are mostly trained on small-scale synthetic datasets with…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Hao Li , Xiang Chen , Jiangxin Dong , Jinhui Tang , Jinshan Pan

Classifier guidance -- using the gradients of an image classifier to steer the generations of a diffusion model -- has the potential to dramatically expand the creative control over image generation and editing. However, currently…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Bram Wallace , Akash Gokul , Stefano Ermon , Nikhil Naik

Low-light image enhancement (LLIE) is a fundamental task in computational photography, aiming to improve illumination, reduce noise, and enhance the image quality of low-light images. While recent advancements primarily focus on customizing…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Tong Li , Lizhi Wang , Hansen Feng , Lin Zhu , Wanxuan Lu , Hua Huang