Yuan JI, Xingyi LI, Xinde MA, Liang LIAO. Improved Retinex low-light image enhancement for stage scenes[J]. Optics and Precision Engineering, 2023, 31(17): 2573
- Optics and Precision Engineering
- Vol. 31, Issue 17, 2573 (2023)
Fig. 1. Flow chart of LLEF algorithm
Fig. 2. Comparison of Canny operator results
Fig. 3. Laplace convolution template
Fig. 4. Flow chart of low illumination enhancement algorithm
Fig. 5. Comparison of grayscale before and after image fusion
Fig. 6. Histogram comparison of original image with image after enhancement and fusion
Fig. 7. Framework for FPGA implementation of LLEF algorithm
Fig. 8. Hardware test platform
Fig. 9. Results of low-light images processed with different algorithms
Fig. 10. Processed results of different algorithms for stage scenes taken by binocular cameras
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Table 1. Comparison of peak signal-to-noise ratio metrics of different algorithms
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Table 2. Comparison of structural similarity metrics of different algorithms
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