Laser & Optoelectronics Progress, Volume. 57, Issue 16, 161003(2020)
Image Dehazing Algorithm Based on Adaptive Constraint Correction of Transmittance
Figures & Tables(11)
![Results of Tian'anmen image. (a) Haze image; (b) result of Ref. [7] algorithm; (c) result of Ref. [8] algorithm; (d) result of Ref. [10] algorithm; (e) result of proposed algorithm](/Images/icon/loading.gif){kind=icon}
Fig. 4. Results of Tian'anmen image. (a) Haze image; (b) result of Ref. [7] algorithm; (c) result of Ref. [8] algorithm; (d) result of Ref. [10] algorithm; (e) result of proposed algorithm
Fig. 5. Results of forest image. (a) Haze image; (b) result of Ref. [7] algorithm; (c) result of Ref. [8] algorithm; (d) result of Ref. [10] algorithm; (e) result of proposed algorithm
Fig. 6. Results of city image. (a) Haze image; (b) result of Ref. [7] algorithm; (c) result of Ref. [8] algorithm; (d) result of Ref. [10] algorithm; (e) result of proposed algorithm
Fig. 7. Results of birds image. (a) Haze image; (b) result of Ref. [7] algorithm; (c) result of Ref. [8] algorithm; (d) result of Ref. [10] algorithm; (e) result of proposed algorithm
Fig. 8. Results of Chongqing image. (a) Haze image; (b) result of Ref. [7] algorithm; (c) result of Ref. [8] algorithm; (d) result of Ref. [10] algorithm; (e) result of proposed algorithm without manual estimation optimization of atmospheric light value; (e) result of proposed algorithm with manual estimation optimization of atmospheric light value
Table 1. Information entropy comparison of different algorithms of five images
View tableTable 1. Information entropy comparison of different algorithms of five images
Image Information entropy /bits Ref. [7] Ref. [8] Ref. [10] Proposed Tian'anmen 7.245 7.263 7.255 7.291 Forest 7.112 7.120 6.953 7.041 City 7.140 7.143 6.968 7.139 Birds 6.918 7.012 7.120 7.253 Chongqing 7.351 7.362 7.358 7.512
Table 2. Contrast ratio comparison of different algorithms of five images
View tableTable 2. Contrast ratio comparison of different algorithms of five images
Image Contrast ratio /% Ref. [7] Ref. [8] Ref. [10] Proposed Tian'anmen 22.142 29.091 26.862 34.340 Forest 19.158 20.472 47.611 19.798 City 21.363 29.031 43.233 38.792 Birds 25.422 27.453 39.033 38.236 Chongqing 29.453 32.239 41.351 36.675
Table 3. Running time comparison of different algorithms of five images
View tableTable 3. Running time comparison of different algorithms of five images
Image Running time /s Ref. [7] Ref. [8] Ref. [10] Proposed Tian'anmen 1.83 5.03 2.45 1.98 Forest 1.15 3.47 1.60 1.23 City 1.34 3.51 2.14 1.59 Birds 1.57 4.12 1.82 1.38 Chongqing 2.64 6.21 3.26 2.89
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Zengli Liu, Yu Fu. Image Dehazing Algorithm Based on Adaptive Constraint Correction of Transmittance[J]. Laser & Optoelectronics Progress, 2020, 57(16): 161003
Paper Information
Category: Image Processing
Received: Nov. 22, 2019
Accepted: Dec. 31, 2019
Published Online: Aug. 5, 2020
The Author Email: Yu Fu (fy_sunshine@foxmail.com)
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