Hongyan Cao, Changming Liu, Xiaolin Shen, Dawei Li, Yan Chen. Low Illumination Image Processing Based on Adaptive Threshold and Local Tone Mapping[J]. Laser & Optoelectronics Progress, 2021, 58(4): 0410017
- Laser & Optoelectronics Progress
- Vol. 58, Issue 4, 0410017 (2021)
Fig. 1. NSST decomposition process of k=3
Fig. 2. Model of Retinex theory
Fig. 3. Processing flow of proposed algorithm
Fig. 4. Results after processing by different algorithms. (a) Original images; (b) MSR algorithm; (c) GLOW algorithm; (d) Ref. [11]; (e) proposed algorithm
Fig. 5. Local enlarged images after processing by different algorithms. (a) Original images; (b) MSR algorithm; (c) GLOW algorithm; (d) Ref. [11]; (e) proposed algorithm
Fig. 6. Evaluation statistical curves of different indexes. (a) PSNR; (b) FSIM; (c) Lave; (d) H
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Table 1. Objective evaluation results of different algorithms for different images
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