Robust Single-Image Dehazing

This paper proposes a new single-image dehazing method, which is an important preprocessing step in vision applications to overcome the limitations of the conventional dark channel prior. The dark channel prior has a tendency to underestimate transmissions of bright regions or objects that can gener...

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Autor principal:	Changwon Kim
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	dehaze sky detection dark channel prior sky probability white object Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/d68f030007874048bfa8699b01c31f11
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id	oai:doaj.org-article:d68f030007874048bfa8699b01c31f11
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spelling	oai:doaj.org-article:d68f030007874048bfa8699b01c31f112021-11-11T15:38:56ZRobust Single-Image Dehazing10.3390/electronics102126362079-9292https://doaj.org/article/d68f030007874048bfa8699b01c31f112021-10-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/21/2636https://doaj.org/toc/2079-9292This paper proposes a new single-image dehazing method, which is an important preprocessing step in vision applications to overcome the limitations of the conventional dark channel prior. The dark channel prior has a tendency to underestimate transmissions of bright regions or objects that can generate color distortions during the process of dehazing. In order to suppress the distortions in a large sky area or a bright white object, the sky probabilities and the white-object probabilities calculated in the non-sky area are proposed. The sky area is detected by combining the advantages of a region-based and a boundary-based sky segmentation in order to consider various sky shapes in road scenes. The performance of the proposed methods is evaluated using synthetic and real-world datasets. When compared to conventional methods in the reviewed literature, the proposed method produces significant improvements concerning visual and numerical criteria.Changwon KimMDPI AGarticledehazesky detectiondark channel priorsky probabilitywhite objectElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2636, p 2636 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	dehaze sky detection dark channel prior sky probability white object Electronics TK7800-8360
spellingShingle	dehaze sky detection dark channel prior sky probability white object Electronics TK7800-8360 Changwon Kim Robust Single-Image Dehazing
description	This paper proposes a new single-image dehazing method, which is an important preprocessing step in vision applications to overcome the limitations of the conventional dark channel prior. The dark channel prior has a tendency to underestimate transmissions of bright regions or objects that can generate color distortions during the process of dehazing. In order to suppress the distortions in a large sky area or a bright white object, the sky probabilities and the white-object probabilities calculated in the non-sky area are proposed. The sky area is detected by combining the advantages of a region-based and a boundary-based sky segmentation in order to consider various sky shapes in road scenes. The performance of the proposed methods is evaluated using synthetic and real-world datasets. When compared to conventional methods in the reviewed literature, the proposed method produces significant improvements concerning visual and numerical criteria.
format	article
author	Changwon Kim
author_facet	Changwon Kim
author_sort	Changwon Kim
title	Robust Single-Image Dehazing
title_short	Robust Single-Image Dehazing
title_full	Robust Single-Image Dehazing
title_fullStr	Robust Single-Image Dehazing
title_full_unstemmed	Robust Single-Image Dehazing
title_sort	robust single-image dehazing
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d68f030007874048bfa8699b01c31f11
work_keys_str_mv	AT changwonkim robustsingleimagedehazing
_version_	1718434700628852736

Robust Single-Image Dehazing

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