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Contrast change is an important factor that affects the quality of images. During image capturing, unfavorable lighting conditions can cause contrast change and visual quality loss. While various methods have been proposed to assess the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Mohammad-Ali Mahmoudpour , Saeed Mahmoudpour

In this paper, we present a novel method of no-reference image quality assessment (NR-IQA), which is to predict the perceptual quality score of a given image without using any reference image. The proposed method harnesses three functions…

Computer Vision and Pattern Recognition · Computer Science 2017-05-30 Diqi Chen , Yizhou Wang , Tianfu Wu , Wen Gao

No-reference image quality assessment (NR-IQA) aims to simulate the process of perceiving image quality aligned with subjective human perception. However, existing NR-IQA methods either focus on global representations that leads to limited…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Chenyue Song , Chen Hui , Haiqi Zhu , Feng Jiang , Yachun Mi , Wei Zhang , Shaohui Liu

Image quality assessment (IQA) is traditionally classified into full-reference (FR) IQA and no-reference (NR) IQA according to whether the original image is required. Although NR-IQA is widely used in practical applications, room for…

Computer Vision and Pattern Recognition · Computer Science 2016-09-05 Haoyi Liang , Daniel S. Weller

Image Quality Assessment (IQA) is essential in various Computer Vision tasks such as image deblurring and super-resolution. However, most IQA methods require reference images, which are not always available. While there are some…

Image and Video Processing · Electrical Eng. & Systems 2024-05-06 Han Cui , Alfredo De Goyeneche , Efrat Shimron , Boyuan Ma , Michael Lustig

Image quality assessment (IQA) focuses on the perceptual visual quality of images, playing a crucial role in downstream tasks such as image reconstruction, compression, and generation. The rapid advancement of multi-modal large language…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Weiqi Li , Xuanyu Zhang , Shijie Zhao , Yabin Zhang , Junlin Li , Li Zhang , Jian Zhang

No-Reference Image Quality Assessment (NR-IQA) aims to develop methods to measure image quality in alignment with human perception without the need for a high-quality reference image. In this work, we propose a self-supervised approach…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Lorenzo Agnolucci , Leonardo Galteri , Marco Bertini , Alberto Del Bimbo

Image quality assessment (IQA) continues to garner great interest in the research community, particularly given the tremendous rise in consumer video capture and streaming. Despite significant research effort in IQA in the past few decades,…

Multimedia · Computer Science 2016-09-26 Prajna Paramita Dash , Akshaya Mishra , Alexander Wong

No-reference (NR) image quality assessment (IQA) is an important tool in enhancing the user experience in diverse visual applications. A major drawback of state-of-the-art NR-IQA techniques is their reliance on a large number of human…

Computer Vision and Pattern Recognition · Computer Science 2023-12-11 Suhas Srinath , Shankhanil Mitra , Shika Rao , Rajiv Soundararajan

One major problem of objective Image Quality Assessment (IQA) methods is the lack of linearity of their quality estimates with respect to scores expressed by human subjects. For this reason, usually IQA metrics undergo a calibration process…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Elio D. Di Claudio , Paolo Giannitrapani , Giovanni Jacovitti

Image quality assessment (IQA) aims to estimate human perception based image visual quality. Although existing deep neural networks (DNNs) have shown significant effectiveness for tackling the IQA problem, it still needs to improve the…

Image and Video Processing · Electrical Eng. & Systems 2020-12-04 Wei Zhou , Zhibo Chen

Image quality assessment(IQA) is of increasing importance for image-based applications. Its purpose is to establish a model that can replace humans for accurately evaluating image quality. According to whether the reference image is…

Image and Video Processing · Electrical Eng. & Systems 2022-01-12 Lanjiang Wang

We introduce a Depicted image Quality Assessment method (DepictQA), overcoming the constraints of traditional score-based methods. DepictQA allows for detailed, language-based, human-like evaluation of image quality by leveraging…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Zhiyuan You , Zheyuan Li , Jinjin Gu , Zhenfei Yin , Tianfan Xue , Chao Dong

In practical media distribution systems, visual content usually undergoes multiple stages of quality degradation along the delivery chain, but the pristine source content is rarely available at most quality monitoring points along the chain…

Image and Video Processing · Electrical Eng. & Systems 2021-10-29 Shahrukh Athar , Zhou Wang

Traditional image quality assessment (IQA) methods rely on mean opinion scores (MOS), which are resource-intensive to collect and fail to provide interpretable, localized feedback on specific image distortions. We overcome these limitations…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Fadeel Sher Khan , Long N. Le , Abhinau K. Venkataramanan , Seok-Jun Lee , Hamid R. Sheikh

In this paper we investigate into the problem of image quality assessment (IQA) and enhancement via machine learning. This issue has long attracted a wide range of attention in computational intelligence and image processing communities,…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Ke Gu , Dacheng Tao , Junfei Qiao , Weisi Lin

Multi-level deep-features have been driving state-of-the-art methods for aesthetics and image quality assessment (IQA). However, most IQA benchmarks are comprised of artificially distorted images, for which features derived from ImageNet…

Image and Video Processing · Electrical Eng. & Systems 2020-01-23 Hanhe Lin , Vlad Hosu , Dietmar Saupe

Image Quality Assessment (IQA) with reference images have achieved great success by imitating the human vision system, in which the image quality is effectively assessed by comparing the query image with its pristine reference image.…

Computer Vision and Pattern Recognition · Computer Science 2023-12-04 Xudong Li , Jingyuan Zheng , Xiawu Zheng , Runze Hu , Enwei Zhang , Yuting Gao , Yunhang Shen , Ke Li , Yutao Liu , Pingyang Dai , Yan Zhang , Rongrong Ji

Existing deep learning-based full-reference IQA (FR-IQA) models usually predict the image quality in a deterministic way by explicitly comparing the features, gauging how severely distorted an image is by how far the corresponding feature…

Image and Video Processing · Electrical Eng. & Systems 2022-09-21 Xingran Liao , Baoliang Chen , Hanwei Zhu , Shiqi Wang , Mingliang Zhou , Sam Kwong

The optimization objective of regression-based blind image quality assessment (IQA) models is to minimize the mean prediction error across the training dataset, which can lead to biased parameter estimation due to potential training data…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Xiaoqi Wang , Jian Xiong , Hao Gao , Weisi Lin