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Recent years have witnessed the increasing popularity of learning based methods to enhance the color and tone of photos. However, many existing photo enhancement methods either deliver unsatisfactory results or consume too much…

Image and Video Processing · Electrical Eng. & Systems 2020-10-01 Hui Zeng , Jianrui Cai , Lida Li , Zisheng Cao , Lei Zhang

The image enhancement methods based on 3D lookup tables (3D LUTs) efficiently reduce both model size and runtime by interpolating pre-calculated values at the vertices. However, the 3D LUT methods have a limitation due to their lack of…

Image and Video Processing · Electrical Eng. & Systems 2025-08-25 Wontae Kim , Keuntek Lee , Nam Ik Cho

Image enhancement aims at improving the aesthetic visual quality of photos by retouching the color and tone, and is an essential technology for professional digital photography. Recent years deep learning-based image enhancement algorithms…

Image and Video Processing · Electrical Eng. & Systems 2022-09-07 Chengxu Liu , Huan Yang , Jianlong Fu , Xueming Qian

Recently, many algorithms have employed image-adaptive lookup tables (LUTs) to achieve real-time image enhancement. Nonetheless, a prevailing trend among existing methods has been the employment of linear combinations of basic LUTs to…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Kang Fu , Yicong Peng , Zicheng Zhang , Qihang Xu , Xiaohong Liu , Jia Wang , Guangtao Zhai

Deep learning-based image enhancement methods face a fundamental trade-off between computational efficiency and representational capacity. For example, although a conventional three-dimensional Look-Up Table (3D LUT) can process a degraded…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Liubing Hu , Chen Wu , Anrui Wang , Dianjie Lu , Guijuan Zhang , Zhuoran Zheng

Image-adaptive lookup tables (LUTs) have achieved great success in real-time image enhancement tasks due to their high efficiency for modeling color transforms. However, they embed the complete transform, including the color…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Canqian Yang , Meiguang Jin , Yi Xu , Rui Zhang , Ying Chen , Huaida Liu

Recently, deep learning-based pan-sharpening algorithms have achieved notable advancements over traditional methods. However, deep learning-based methods incur substantial computational overhead during inference, especially with large…

Computer Vision and Pattern Recognition · Computer Science 2025-12-04 Zhongnan Cai , Yingying Wang , Hui Zheng , Panwang Pan , ZiXu Lin , Ge Meng , Chenxin Li , Chunming He , Jiaxin Xie , Yunlong Lin , Junbin Lu , Yue Huang , Xinghao Ding

We present LoR-LUT, a unified low-rank formulation for compact and interpretable 3D lookup table (LUT) generation. Unlike conventional 3D-LUT-based techniques that rely on fusion of basis LUTs, which are usually dense tensors, our unified…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Ziqi Zhao , Abhijit Mishra , Shounak Roychowdhury

Photo enhancement plays a crucial role in augmenting the visual aesthetics of a photograph. In recent years, photo enhancement methods have either focused on enhancement performance, producing powerful models that cannot be deployed on edge…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Feng Zhang , Haoyou Deng , Zhiqiang Li , Lida Li , Bin Xu , Qingbo Lu , Zisheng Cao , Minchen Wei , Changxin Gao , Nong Sang , Xiang Bai

3D lookup tables (3D LUTs) are a key component for image enhancement. Modern image signal processors (ISPs) have dedicated support for these as part of the camera rendering pipeline. Cameras typically provide multiple options for picture…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Marcos V. Conde , Javier Vazquez-Corral , Michael S. Brown , Radu Timofte

Look-Up Table based methods have emerged as a promising direction for efficient image restoration tasks. Recent LUT-based methods focus on improving their performance by expanding the receptive field. However, they inevitably introduce…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Xiaolong Zeng , Yitong Yu , Shiyao Xiong , Jinhua Hao , Ming Sun , Chao Zhou , Bin Wang

Recent years have witnessed the increasing application of place recognition in various environments, such as city roads, large buildings, and a mix of indoor and outdoor places. This task, however, still remains challenging due to the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-24 Haowen Lai , Peng Yin , Sebastian Scherer

The widespread use of high-definition screens in edge devices, such as end-user cameras, smartphones, and televisions, is spurring a significant demand for image enhancement. Existing enhancement models often optimize for high performance…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Sidi Yang , Binxiao Huang , Mingdeng Cao , Yatai Ji , Hanzhong Guo , Ngai Wong , Yujiu Yang

With the rising imaging resolution of handheld devices, existing multi-exposure image fusion algorithms struggle to generate a high dynamic range image with ultra-high resolution in real-time. Apart from that, there is a trend to design a…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Xin Su , Zhuoran Zheng

Current advanced research on infrared and visible image fusion primarily focuses on improving fusion performance, often neglecting the applicability on real-time fusion devices. In this paper, we propose a novel approach that towards…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Xunpeng Yi , Yibing Zhang , Xinyu Xiang , Qinglong Yan , Han Xu , Jiayi Ma

Curve & Lookup Table (LUT) based methods directly map a pixel to the target output, making them highly efficient tools for real-time photography processing. However, due to extreme memory complexity to learn full RGB space mapping, existing…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Ziteng Cui , Lin Gu , Tatsuya Harada

Photorealistic style transfer (PST) enables real-world color grading by adapting reference image colors while preserving content structure. Existing methods mainly follow either approaches: generation-based methods that prioritize stylistic…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Zerui Gong , Zhonghua Wu , Qingyi Tao , Qinyue Li , Chen Change Loy

In this paper, we introduce a new approach for high-quality multi-exposure image fusion (MEF). We show that the fusion weights of an exposure can be encoded into a 1D lookup table (LUT), which takes pixel intensity value as input and…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Ting Jiang , Chuan Wang , Xinpeng Li , Ru Li , Haoqiang Fan , Shuaicheng Liu

In recent years, laser ultrasonic visualization testing (LUVT) has attracted much attention because of its ability to efficiently perform non-contact ultrasonic non-destructive testing.Despite many success reports of deep learning based…

Image and Video Processing · Electrical Eng. & Systems 2023-05-31 Miya Nakajima , Takahiro Saitoh , Tsuyoshi Kato

Vision Transformers have been tremendously successful in computer vision tasks. However, their large computational, memory, and energy demands are a challenge for edge inference on FPGAs -- a field that has seen a recent surge in demand. We…

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