000001002003004005006007008009010011012013014015016017018019020021022023024025026027028029030031032033034035036037038039040041042043044045

AUTHOR(S): BMVC AUTHOR GUIDELINES 1

MBLLEN: Low-Light Image/Video Enhancement Using CNNs

Supplementary Material

BMVC 2018 Submission # 700

1 Additional Quantitative Comparisons

PSNR SSIM [16] VIF [14] LOE TMQI [17] AB [4]Input 12.80 0.43 0.38 606.85 0.79 -54.62AMSR [11] 8.82 0.17 0.10 4377.32 0.42 -80.38CVC [3] 11.13 0.29 0.27 912.45 0.75 -65.18LDR [12] 12.92 0.41 0.36 703.75 0.79 -53.86SRIE [7] 15.84 0.59 0.43 788.53 0.82 -37.02BPDHE [9] 15.01 0.59 0.39 607.43 0.81 -37.38HE 15.00 0.65 0.42 753.66 0.88 34.60MSRCR [10] 13.30 0.64 0.44 1235.92 0.83 47.08LIME [8] 15.16 0.60 0.44 1215.58 0.82 10.90MF [6] 18.48 0.67 0.45 882.24 0.84 -23.24Dong [5] 17.80 0.64 0.37 1398.35 0.82 -16.43NPE [15] 17.65 0.68 0.43 1051.15 0.84 -25.28DHECI [13] 18.18 0.68 0.43 606.98 0.87 -1.21WAHE [1] 17.64 0.67 0.48 648.29 0.84 -30.28Ying [19] 19.66 0.73 0.47 892.56 0.86 2.57BIMEF [18] 19.80 0.74 0.48 675.15 0.85 -20.22Ours 26.56 0.89 0.55 478.02 0.91 -0.96

Table 1: Comparison of low-light image enhancement without additional noise.

PSNR SSIM [16] VIF [14] LOE TMQI [17] AB [4]Input 13.63/13.59 0.42/0.42 0.34/0.34 739.63/ 739.59 0.79/0.79 -47.96/-49.00AMSR [11] 9.57/ 9.91 0.18/0.18 0.09/0.09 4357.38/4357.40 0.43/0.45 -74.49/-68.47CVC [3] 11.83/11.80 0.28/0.29 0.25/0.25 1006.25/1006.33 0.75/0.75 -58.80/-59.34LDR [12] 13.64/13.61 0.40/0.41 0.32/0.32 817.24/ 817.28 0.79/0.78 -47.26/-48.56SRIE [7] 16.84/17.07 0.58/0.58 0.37/0.37 828.63/ 828.28 0.83/0.82 -27.09/-29.84BPDHE [9] 15.90/15.80 0.60/0.59 0.33/0.32 688.33/ 688.44 0.81/0.81 -31.47/-33.99HE 14.50/16.49 0.58/0.60 0.36/0.36 853.38/ 853.36 0.87/0.86 38.93/ 19.42MSRCR [10] 12.64/13.37 0.62/0.63 0.36/0.36 1249.31/1249.17 0.83/0.84 53.07/ 47.91LIME [8] 14.36/15.26 0.59/0.60 0.37/0.37 1250.82/1250.75 0.81/0.82 19.23/ 14.84MF [6] 19.37/19.66 0.67/0.67 0.39/0.38 896.67/ 896.46 0.84/0.84 -13.77/-16.88Dong [5] 17.80/18.42 0.63/0.64 0.32/0.31 1390.64/1390.82 0.82/0.82 -6.43/ -9.69NPE [15] 18.55/18.55 0.67/0.68 0.36/0.36 1070.94/1070.64 0.84/0.84 -17.88/-20.85DHECI [13] 18.03/18.71 0.67/0.68 0.36/0.36 687.60/ 687.61 0.86/0.86 3.75/ 0.16WAHE [1] 17.91/17.37 0.62/0.59 0.40/0.40 771.34/ 771.33 0.83/0.82 -26.41/-30.04Ying [19] 18.61/19.69 0.70/0.71 0.40/0.39 928.13/ 927.83 0.86/0.86 10.99/ 6.99BIMEF [18] 20.27/17.56 0.73/0.70 0.41/0.39 725.72/ 725.61 0.85/0.83 -11.58/-31.13Ours 25.97/26.39 0.87/0.87 0.49/0.49 573.14/ 573.14 0.98/0.89 1.45/ -1.57

Table 2: Comparison of low-light image enhancement with additional Poisson noise. Asdescribed in the paper, the numbers on the right indicate the brightness-scaled results byusing ground truth for reference.

c© 2018. The copyright of this document resides with its authors.It may be distributed unchanged freely in print or electronic forms.

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2 AUTHOR(S): BMVC AUTHOR GUIDELINES

2 More Image Enhancement Results1. Figure 1 - Figure 15: comparison on images without additional noise

2. Figure 16 - Figure 25: comparison on images with additional Poisson noise

3. Figure 26 - Figure 30: comparison on natural low-light images

4. Figure 31: more results on on natural low-light images

In order to see the visual difference more clearly, it is recommended to first check thesame dark regions in the input images and zoom in on the images if necessary.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 3

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 1: Low-light image enhancement without additional noise.

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4 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 2: Low-light image enhancement without additional noise.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 5

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 3: Low-light image enhancement without additional noise.

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6 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 4: Low-light image enhancement without additional noise.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 7

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 5: Low-light image enhancement without additional noise.

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8 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 6: Low-light image enhancement without additional noise.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 9

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 7: Low-light image enhancement without additional noise.

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10 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 8: Low-light image enhancement without additional noise.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 11

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 9: Low-light image enhancement without additional noise.

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12 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 10: Low-light image enhancement without additional noise.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 13

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 11: Low-light image enhancement without additional noise.

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14 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 12: Low-light image enhancement without additional noise.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 15

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 13: Low-light image enhancement without additional noise.

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16 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground TruthFigure 14: Low-light image enhancement without additional noise.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 17

Input WAHE [1] Dong [5]

NPE [15] DHECI [13] SRIE [7]

Ying [19] MF [6] LIME [8]

BIMEF [18] Ours Ground Ground TruthFigure 15: Low-light image enhancement without additional noise.

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18 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input WAHE [1]+[2] Dong [5]+[2]

NPE [15]+[2] DHECI [13]+[2] SRIE [7]+[2]

Ying [19]+[2] MF [6]+[2] LIME [8]+[2]

BIMEF [18]+[2] Ours Ground TruthFigure 16: Low-light image enhancement with additional Poisson noise.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 19

Input WAHE [1]+[2] Dong [5]+[2]

NPE [15]+[2] DHECI [13]+[2] SRIE [7]+[2]

Ying [19]+[2] MF [6]+[2] LIME [8]+[2]

BIMEF [18]+[2] Ours Ground TruthFigure 17: Low-light image enhancement with additional Poisson noise.

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20 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input WAHE [1]+[2] Dong [5]+[2]

NPE [15]+[2] DHECI [13]+[2] SRIE [7]+[2]

Ying [19]+[2] MF [6]+[2] LIME [8]+[2]

BIMEF [18]+[2] Ours Ground TruthFigure 18: Low-light image enhancement with additional Poisson noise.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 21

Input WAHE [1]+[2] Dong [5]+[2]

NPE [15]+[2] DHECI [13]+[2] SRIE [7]+[2]

Ying [19]+[2] MF [6]+[2] LIME [8]+[2]

BIMEF [18]+[2] Ours Ground TruthFigure 19: Low-light image enhancement with additional Poisson noise.

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22 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input WAHE [1]+[2] Dong [5]+[2]

NPE [15]+[2] DHECI [13]+[2] SRIE [7]+[2]

Ying [19]+[2] MF [6]+[2] LIME [8]+[2]

BIMEF [18]+[2] Ours Ground TruthFigure 20: Low-light image enhancement with additional Poisson noise.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 23

Input WAHE [1]+[2] Dong [5]+[2]

NPE [15]+[2] DHECI [13]+[2] SRIE [7]+[2]

Ying [19]+[2] MF [6]+[2] LIME [8]+[2]

BIMEF [18]+[2] Ours Ground TruthFigure 21: Low-light image enhancement with additional Poisson noise.

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24 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input WAHE [1]+[2] Dong [5]+[2]

NPE [15]+[2] DHECI [13]+[2] SRIE [7]+[2]

Ying [19]+[2] MF [6]+[2] LIME [8]+[2]

BIMEF [18]+[2] Ours Ground TruthFigure 22: Low-light image enhancement with additional Poisson noise.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 25

Input WAHE [1]+[2] Dong [5]+[2]

NPE [15]+[2] DHECI [13]+[2] SRIE [7]+[2]

Ying [19]+[2] MF [6]+[2] LIME [8]+[2]

BIMEF [18]+[2] Ours Ground TruthFigure 23: Low-light image enhancement with additional Poisson noise.

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26 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input WAHE [1]+[2] Dong [5]+[2]

NPE [15]+[2] DHECI [13]+[2] SRIE [7]+[2]

Ying [19]+[2] MF [6]+[2] LIME [8]+[2]

BIMEF [18]+[2] Ours Ground TruthFigure 24: Low-light image enhancement with additional Poisson noise.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 27

Input WAHE [1]+[2] Dong [5]+[2]

NPE [15]+[2] DHECI [13]+[2] SRIE [7]+[2]

Ying [19]+[2] MF [6]+[2] LIME [8]+[2]

BIMEF [18]+[2] Ours Ground TruthFigure 25: Low-light image enhancement with additional Poisson noise.

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28 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input BPDHE [9] WAHE [1]

Dong [5] NPE [15] DHECI [13]

SRIE [7] MF [6] LIME [8]

Ying [19] BIMEF [18] OursFigure 26: Comparison on natural low-light image enhancement.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 29

Input BPDHE [9] WAHE [1]

Dong [5] NPE [15] DHECI [13]

SRIE [7] MF [6] LIME [8]

Ying [19] BIMEF [18] OursFigure 27: Comparison on natural low-light image enhancement.

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30 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input BPDHE [9] WAHE [1]

Dong [5] NPE [15] DHECI [13]

SRIE [7] MF [6] LIME [8]

Ying [19] BIMEF [18] OursFigure 28: Comparison on natural low-light image enhancement.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 31

Input BPDHE [9] WAHE [1]

Dong [5] NPE [15] DHECI [13]

SRIE [7] MF [6] LIME [8]

Ying [19] BIMEF [18] OursFigure 29: Comparison on natural low-light image enhancement.

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32 AUTHOR(S): BMVC AUTHOR GUIDELINES

Input BPDHE [9] WAHE [1]

Dong [5] NPE [15] DHECI [13]

SRIE [7] MF [6] LIME [8]

Ying [19] BIMEF [18] OursFigure 30: Comparison on natural low-light image enhancement.

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AUTHOR(S): BMVC AUTHOR GUIDELINES 33

Input Ours Input Ours

Figure 31: Additional results on natural low-light image enhancement.

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34 AUTHOR(S): BMVC AUTHOR GUIDELINES

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