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Chinese Journal of Lasers, Volume. 46, Issue 8, 0810003(2019)

Image Dehazing of Dark Channels Based on Area Contrast Constraint

Zhendong Wang1,2, Xu Jing1、*, Guodong Sun1, Yilun Cheng1,2, Lulu Yu1,2, Wenlu Guan1,2, Laian Qin1, Fengfu Tan1, Silong Zhang1, Feng He1, and Zaihong Hou1、**
Author Affiliations
  • 1 Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Hefei, Anhui 230031, China
  • 2 University of Science and Technology of China, Hefei, Anhui 230026, China
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    References (16)
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    Figures & Tables(3)
    Example of dehazed images. (a) Input image; (b) normalized transmittance image; (c) dehazed image based on dark channel prior with median filtering; (d) enhanced image using bi-histogram equalization in HSI

    Fig. 1. Example of dehazed images. (a) Input image; (b) normalized transmittance image; (c) dehazed image based on dark channel prior with median filtering; (d) enhanced image using bi-histogram equalization in HSI

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    Clear effect of foggy images.(a) Original image; (b) algorithm in Ref. [13]; (c) algorithm in Ref. [4]; (d) algorithm in Ref. [14]; (e) proposed algorithm

    Fig. 2. Clear effect of foggy images.(a) Original image; (b) algorithm in Ref. [13]; (c) algorithm in Ref. [4]; (d) algorithm in Ref. [14]; (e) proposed algorithm

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    • Table 1. Objective evaluation of different algorithms

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      Table 1. Objective evaluation of different algorithms

      Image numberImage dehazingalgorithmStandard deviationof brightnessInformationentropyAverage gradient
      Original image72.20057.81854.7986
      Algorithm in Ref. [13]53.30217.57415.9176
      1Algorithm in Ref. [4]76.85397.91004.7088
      Algorithm in Ref. [14]54.48487.61307.8072
      Proposed algorithm71.96067.965912.8912
      Original image41.21357.21448.0648
      Algorithm in Ref. [13]39.46397.23509.9588
      2Algorithm in Ref. [4]71.88287.961813.7041
      Algorithm in Ref. [14]40.18827.255910.5607
      Proposed algorithm64.54427.896321.7560
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    Zhendong Wang, Xu Jing, Guodong Sun, Yilun Cheng, Lulu Yu, Wenlu Guan, Laian Qin, Fengfu Tan, Silong Zhang, Feng He, Zaihong Hou. Image Dehazing of Dark Channels Based on Area Contrast Constraint[J]. Chinese Journal of Lasers, 2019, 46(8): 0810003

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    Paper Information

    Category: remote sensing and sensor

    Received: Feb. 1, 2019

    Accepted: Mar. 10, 2019

    Published Online: Aug. 13, 2019

    The Author Email: Jing Xu (xjing@mail.ustc.edu.cn), Hou Zaihong (xjing@mail.ustc.edu.cn)

    DOI:10.3788/CJL201946.0810003

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology