Acta Metrologica Sinica  2019, Vol. 40 Issue (4): 583-588    DOI: 10.3969/j.issn.1000-1158.2019.04.07
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Image Dehazing Based on Near and Far Scene Dark Channel Prior
TIAN Yuan
Henan University of Animal Husbandry and Economy, Zhengzhou, Henan 450044, China
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Abstract  In order to improve the effect of image dehazing, near and far scene dark channel prior, was proposed. Firstly,mixed dark channel prior was established, which is included minimum channel of near scene and dark channel prior of far scene, and set adjustment coefficient of different scene region. Secondly, atmosphere light value was estimated with 50 pixel color average value of mixed dark channel prior far scene, and added correction coefficient.Thirdly,transmission was optimizated with adaptive sliding window of guided filtering.Finally,process was given.Experiment simulation showed that mixed dark channel prior has better visual effect,and contrast ratio and visible edge contrast ratio of quantitative analysis indexes are better than other algorithms.
Key words： metrology      image dehazing      mixed dark channel prior      near scene      far scene      adaptive     
Received: 08 January 2019      Published: 10 June 2019
PACS:  TB96  
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TIAN Yuan
Cite this article:   
TIAN Yuan. Image Dehazing Based on Near and Far Scene Dark Channel Prior[J]. Acta Metrologica Sinica, 2019, 40(4): 583-588.
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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2019.04.07     OR     http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2019/V40/I4/583
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