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Multimedia Tools and Applications

, Volume 75, Issue 24, pp 17081–17096 | Cite as

Single image dehazing through improved atmospheric light estimation

  • Huimin Lu
  • Yujie Li
  • Shota Nakashima
  • Seiichi Serikawa
Article

Abstract

Image contrast enhancement for outdoor vision is important for smart car auxiliary transport systems. The video frames captured in poor weather conditions are often characterized by poor visibility. Most image dehazing algorithms consider to use a hard threshold assumptions or user input to estimate atmospheric light. However, the brightest pixels sometimes are objects such as car lights or streetlights, especially for smart car auxiliary transport systems. Simply using a hard threshold may cause a wrong estimation. In this paper, we propose a single optimized image dehazing method that estimates atmospheric light efficiently and removes haze through the estimation of a semi-globally adaptive filter. The enhanced images are characterized with little noise and good exposure in dark regions. The textures and edges of the processed images are also enhanced significantly.

Keywords

Image dehazing Image restoration Image enhancement Atmospheric light estimation 

Notes

Acknowledgments

All of the authors have the same contribution to this paper. This work was supported by Grant in Aid for Foreigner Research Fellows of Japan Society for the Promotion of Science (No.15F15077), Open Fund of the Key Laboratory of Marine Geology and Environment in Chinese Academy of Sciences (No.MGE2015KG02), Research Fund of State Key Laboratory of Marine Geology in Tongji University (MGK1407), Research Fund of State Key Laboratory of Ocean Engineering in Shanghai Jiaotong University (OEK1315), and Grant in Aid for Research Fellows of Japan Society for the Promotion of Science (No.13 J10713).

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Huimin Lu
    • 1
    • 2
    • 3
  • Yujie Li
    • 1
  • Shota Nakashima
    • 4
  • Seiichi Serikawa
    • 1
  1. 1.Kyushu Institute of TechnologyKitakyushuJapan
  2. 2.Chinese Academy of SciencesQingdaoChina
  3. 3.Shanghai Jiaotong UniversityShanghaiChina
  4. 4.Yamaguchi UniversityYamaguchiJapan

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