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As the popularity of mobile photography is growing constantly, lots of efforts are being invested now into building complex hand-crafted camera ISP solutions. In this work, we demonstrate that even the most sophisticated ISP pipelines can…

Computer Vision and Pattern Recognition · Computer Science 2020-02-14 Andrey Ignatov , Luc Van Gool , Radu Timofte

Image Signal Processors (ISPs) play important roles in image recognition tasks as well as in the perceptual quality of captured images. In most cases, experts make a lot of effort to manually tune many parameters of ISPs, but the parameters…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Masakazu Yoshimura , Junji Otsuka , Atsushi Irie , Takeshi Ohashi

As the revolutionary improvement being made on the performance of smartphones over the last decade, mobile photography becomes one of the most common practices among the majority of smartphone users. However, due to the limited size of…

Image and Video Processing · Electrical Eng. & Systems 2020-09-15 Linhui Dai , Xiaohong Liu , Chengqi Li , Jun Chen

Digital cameras transform sensor RAW readings into RGB images by means of their Image Signal Processor (ISP). Computational photography tasks such as image denoising and colour constancy are commonly performed in the RAW domain, in part due…

Image and Video Processing · Electrical Eng. & Systems 2022-09-23 Marcos V. Conde , Steven McDonagh , Matteo Maggioni , Aleš Leonardis , Eduardo Pérez-Pellitero

Event-guided imaging has received significant attention due to its potential to revolutionize instant imaging systems. However, the prior methods primarily focus on enhancing RGB images in a post-processing manner, neglecting the challenges…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Yunfan Lu , Yanlin Qian , Ziyang Rao , Junren Xiao , Liming Chen , Hui Xiong

Deep learning-based ISP algorithms have demonstrated significant potential in raw2rgb reconstruction. However, existing networks have not fully considered the specific characteristics of raw data, such as black level and CFA, which can…

Image and Video Processing · Electrical Eng. & Systems 2024-06-18 Fei Li , Wenbo Hou , Peng Jia

Low-light Object detection is crucial for many real-world applications but remains challenging due to degraded image quality. While recent studies have shown that RAW images offer superior potential over RGB images, existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Jiasheng Guo , Xin Gao , Yuxiang Yan , Guanghao Li , Jian Pu

RAW images are rarely shared mainly due to its excessive data size compared to their sRGB counterparts obtained by camera ISPs. Learning the forward and inverse processes of camera ISPs has been recently demonstrated, enabling…

Image and Video Processing · Electrical Eng. & Systems 2024-04-16 Woohyeok Kim , Geonu Kim , Junyong Lee , Seungyong Lee , Seung-Hwan Baek , Sunghyun Cho

As the quality of mobile cameras starts to play a crucial role in modern smartphones, more and more attention is now being paid to ISP algorithms used to improve various perceptual aspects of mobile photos. In this Mobile AI challenge, the…

Under-display cameras have been proposed in recent years as a way to reduce the form factor of mobile devices while maximizing the screen area. Unfortunately, placing the camera behind the screen results in significant image distortions,…

Image and Video Processing · Electrical Eng. & Systems 2021-11-03 Miao Qi , Yuqi Li , Wolfgang Heidrich

Modern smartphone camera quality heavily relies on the image signal processor (ISP) to enhance captured raw images, utilizing carefully designed modules to produce final output images encoded in a standard color space (e.g., sRGB).…

Image and Video Processing · Electrical Eng. & Systems 2024-07-16 Georgy Perevozchikov , Nancy Mehta , Mahmoud Afifi , Radu Timofte

This thesis presents methods and approaches to image color correction, color enhancement, and color editing. To begin, we study the color correction problem from the standpoint of the camera's image signal processor (ISP). A camera's ISP is…

Computer Vision and Pattern Recognition · Computer Science 2021-07-29 Mahmoud Afifi

The deep learning (DL)-based methods of low-level tasks have many advantages over the traditional camera in terms of hardware prospects, error accumulation and imaging effects. Recently, the application of deep learning to replace the image…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Hongyang Chen , Kaisheng Ma

DNN-based methods have been successful in Image Signal Processor (ISP) and image enhancement (IE) tasks. However, the cost of creating training data for these tasks is considerably higher than for other tasks, making it difficult to prepare…

Computer Vision and Pattern Recognition · Computer Science 2025-04-04 Masakazu Yoshimura , Junji Otsuka , Radu Berdan , Takeshi Ohashi

Object detection models are typically applied to standard RGB images processed through Image Signal Processing (ISP) pipelines, which are designed to enhance sensor-captured RAW images for human vision. However, these ISP functions can lead…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Shani Gamrian , Hila Barel , Feiran Li , Masakazu Yoshimura , Daisuke Iso

In smartphones and compact cameras, the Image Signal Processor (ISP) transforms the RAW sensor image into a human-readable sRGB image. Most popular super-resolution methods depart from a sRGB image and upscale it further, improving its…

Image and Video Processing · Electrical Eng. & Systems 2023-12-27 Marcos V. Conde , Florin Vasluianu , Radu Timofte

RAW-to-sRGB mapping, or the simulation of the traditional camera image signal processor (ISP), aims to generate DSLR-quality sRGB images from raw data captured by smartphone sensors. Despite achieving comparable results to sophisticated…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Yang Ren , Hai Jiang , Menglong Yang , Wei Li , Shuaicheng Liu

The role of mobile cameras increased dramatically over the past few years, leading to more and more research in automatic image quality enhancement and RAW photo processing. In this Mobile AI challenge, the target was to develop an…

An image processing unit (IPU), or image signal processor (ISP) for high dynamic range (HDR) imaging usually consists of demosaicing, white balancing, lens shading correction, color correction, denoising, and tone-mapping. Besides noise…

Image and Video Processing · Electrical Eng. & Systems 2023-03-27 Litao Hu , Huaijin Chen , Jan P. Allebach

Recent advances in snapshot multispectral (MS) imaging have enabled compact, low-cost spectral sensors for consumer and mobile devices. By capturing richer spectral information than conventional RGB sensors, these systems can enhance key…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Luca Cogo , Marco Buzzelli , Simone Bianco , Javier Vazquez-Corral , Raimondo Schettini