Next Article in Journal
A Novel Identity-Based Signcryption Scheme in the Standard Model
Previous Article in Journal
Dynamic, Interactive and Visual Analysis of Population Distribution and Mobility Dynamics in an Urban Environment Using the Mobility Explorer Framework
Article Menu

Export Article

Open AccessArticle
Information 2017, 8(2), 57;

An Effective and Robust Single Image Dehazing Method Using the Dark Channel Prior

School of Electronic Information Engineering, Nanjing College of Information Technology, Nanjing 210023, China
School of Internet of Things, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
Author to whom correspondence should be addressed.
Academic Editor: Marco Leo
Received: 14 March 2017 / Revised: 15 May 2017 / Accepted: 15 May 2017 / Published: 17 May 2017
(This article belongs to the Section Information Processes)
Full-Text   |   PDF [14891 KB, uploaded 18 May 2017]   |  


In this paper, we propose a single image dehazing method aiming at addressing the inherent limitations of the extensively employed dark channel prior (DCP). More concretely, we introduce the Gaussian mixture model (GMM) to segment the input hazy image into scenes based on the haze density feature map. With the segmentation results, combined with the proposed sky region detection method, we can effectively recognize the sky region where the DCP cannot well handle this. On the basis of sky region detection, we then present an improved global atmospheric light estimation method to increase the estimation accuracy of the atmospheric light. Further, we present a multi-scale fusion-based strategy to obtain the transmission map based on DCP, which can significantly reduce the blocking artifacts of the transmission map. To further rectify the error-prone transmission within the sky region, an adaptive sky region transmission correction method is also presented. Finally, due to the segmentation-blindness of GMM, we adopt the guided total variation (GTV) to tackle this problem while eliminating the extensive texture details contained in the transmission map. Experimental results verify the power of our method and show its superiority over several state-of-the-art methods. View Full-Text
Keywords: dehazing; DCP; fusion technique; transmission correction dehazing; DCP; fusion technique; transmission correction

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Yuan, X.; Ju, M.; Gu, Z.; Wang, S. An Effective and Robust Single Image Dehazing Method Using the Dark Channel Prior. Information 2017, 8, 57.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Information EISSN 2078-2489 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top