Tone Mapping Algorithm for High Dynamic Range Images Based on Improved Laplacian Pyramid

Fig. 7. Network structure of ablation experiment. (a) Without AGCM module; (b) only global extraction network contains AGCM module; (c) only fine tone network contains AGCM module

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Fig. 8. Ablation experiment of subnets. (a) Only contain global extraction network; (b) only contain local adjustment network; (c) only contain fine tone network; (d) without global extraction network; (e) without local adjustment network; (f) without fine tone network; (g) whole network

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Fig. 9. Parametric experimental results of α and β. (a) Value of TMQI corresponding to the parameter combination; (b) value of FSITM corresponding to the parameter combination; (c) value of HDR-VDP2 corresponding to the parameter combination

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Table 1. Grading standard of experiment
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Table 1. Grading standard of experiment
Grade Image quality
5 Excellent
4 Good
3 Fair
2 Poor
1 Bad

Table 2. System configuration
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Table 2. System configuration
Software and hardware configuration Parameter
Operating system Windows 10 Professional
CPU AMD Ryzen 7 4800H
GPU NVIDIA GeForce GTX 2060
RAM 16 GB
Python version 3.6

Table 3. Comparison of objective indexes of different methods
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Table 3. Comparison of objective indexes of different methods
Method TMQI FSITM HDR-VDP2
Durand^［18］ 0.864 0.784 36.57
Reinhard^［5］ 0.791 0.848 41.89
Liang^［8］ 0.886 0.792 43.67
Yang^［17］ 0.872 0.824 38.16
Proposed 0.905 0.814 43.96

Table 4. Comparison of average running time of algorithms
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Table 4. Comparison of average running time of algorithms
Method Time /s
Durand^［18］ 0.362
Reinhard^［5］ 0.387
Liang^［8］ 1.691
Yang^［17］ 0.082
Proposed 0.080

Table 5. Results of ANOVA analysis for different factors on image quality score
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Table 5. Results of ANOVA analysis for different factors on image quality score
Factor Image quality score
df F Sig.
Method 4 416.890 0
Image content 29 23.183 0
Cross interaction 116 5.706 0

Table 6. Comparison of the results of ablation experiment
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Table 6. Comparison of the results of ablation experiment
Structure TMQI FSITM HDR-VDP2
Structure A 0.876 0.790 43.01
Structure B 0.893 0.809 43.36
Structure C 0.890 0.823 43.46
Proposed 0.905 0.814 43.96

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Bowen Zhang, Zhenping Xia, Yueyuan Zhang, Cheng Cheng, Yujie Liu. Tone Mapping Algorithm for High Dynamic Range Images Based on Improved Laplacian Pyramid[J]. Laser & Optoelectronics Progress, 2024, 61(4): 0437009

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