Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139879
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dc.contributor.authorGu, Keen_US
dc.contributor.authorTao, Dachengen_US
dc.contributor.authorQiao, Jun-Feien_US
dc.contributor.authorLin, Weisien_US
dc.date.accessioned2020-05-22T06:03:11Z-
dc.date.available2020-05-22T06:03:11Z-
dc.date.issued2017-
dc.identifier.citationGu, K., Tao, D., Qiao, J.-F., & Lin, W. (2018). Learning a no-reference quality assessment model of enhanced images with big data. IEEE Transactions on Neural Networks and Learning Systems, 29(4), 1301-1313. doi:10.1109/TNNLS.2017.2649101en_US
dc.identifier.issn2162-237Xen_US
dc.identifier.urihttps://hdl.handle.net/10356/139879-
dc.description.abstractIn 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, since, for many practical applications, e.g., object detection and recognition, raw images are usually needed to be appropriately enhanced to raise the visual quality (e.g., visibility and contrast). In fact, proper enhancement can noticeably improve the quality of input images, even better than originally captured images, which are generally thought to be of the best quality. In this paper, we present two most important contributions. The first contribution is to develop a new no-reference (NR) IQA model. Given an image, our quality measure first extracts 17 features through analysis of contrast, sharpness, brightness and more, and then yields a measure of visual quality using a regression module, which is learned with big-data training samples that are much bigger than the size of relevant image data sets. The results of experiments on nine data sets validate the superiority and efficiency of our blind metric compared with typical state-of-the-art full-reference, reduced-reference and NA IQA methods. The second contribution is that a robust image enhancement framework is established based on quality optimization. For an input image, by the guidance of the proposed NR-IQA measure, we conduct histogram modification to successively rectify image brightness and contrast to a proper level. Thorough tests demonstrate that our framework can well enhance natural images, low-contrast images, low-light images, and dehazed images. The source code will be released at https://sites.google.com/site/guke198701/publications.en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.language.isoenen_US
dc.relation.ispartofIEEE Transactions on Neural Networks and Learning Systemsen_US
dc.rights© 2017 IEEE. All rights reserved.en_US
dc.subjectEngineering::Computer science and engineeringen_US
dc.titleLearning a no-reference quality assessment model of enhanced images with big dataen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Computer Science and Engineeringen_US
dc.identifier.doi10.1109/TNNLS.2017.2649101-
dc.identifier.pmid28287984-
dc.identifier.scopus2-s2.0-85014809373-
dc.identifier.issue4en_US
dc.identifier.volume29en_US
dc.identifier.spage1301en_US
dc.identifier.epage1313en_US
dc.subject.keywordsBig Data Learningen_US
dc.subject.keywordsEnhancementen_US
item.fulltextNo Fulltext-
item.grantfulltextnone-
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