Chinese Journal of Liquid Crystals and Displays, Volume. 37, Issue 7, 871(2022)
Low illumination image enhancement method based on quad-stable stochastic resonance
Fig. 2. Theoretical curves of image variance with noise intensity（bistable system parameters：
Fig. 3. Flow chart of image enhancement method of quad-stable stochastic resonance
Fig. 4. Simulation curves of variance of system output image varying with noise intensity
Fig. 5. Color images to be enhanced and enhanced under different noise intensities and their V components
Fig. 7. Experimental results of people image enhanced by different methods
Fig. 8. Experimental results of house image enhanced by different methods
Fig. 9. Experimental results of city image enhanced by different methods
Fig. 10. Experimental results of baby image enhanced by different methods
Fig. 11. Experimental results of tree image enhanced by different methods
Table 1. Objective comparison of enhancement results by different methods
View tableView in ArticleTable 1. Objective comparison of enhancement results by different methods
图像 方法 信息熵 噪声估计值 方差 people HE 5.746 0.008 1 0.084 SSR 7.734 0.010 0 0.059 MSRCR 6.803 0.003 1 0.028 双稳系统 7.010 0.001 9 0.030 四稳系统 7.754 0.001 6 0.079 house HE 5.712 0.007 4 0.086 SSR 7.855 0.008 1 0.062 MSRCR 7.927 0.012 9 0.066 双稳系统 7.214 0.000 8 0.036 四稳系统 7.733 0.000 6 0.043 city HE 5.980 0.001 6 0.086 SSR 7.962 0.004 1 0.071 MSRCR 7.943 0.008 7 0.072 双稳系统 7.830 0.000 3 0.077 四稳系统 7.914 0.000 2 0.082 baby HE 5.965 0.001 7 0.086 SSR 7.875 0.005 2 0.060 MSRCR 7.828 0.004 9 0.071 双稳系统 7.569 0.000 2 0.090 四稳系统 7.654 0.000 1 0.099 tree HE 5.958 0.002 6 0.085 SSR 7.890 0.005 7 0.061 MSRCR 7.619 0.003 7 0.052 双稳系统 7.444 0.000 3 0.071 四稳系统 7.645 0.000 1 0.074
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Min WEI, Xiao-feng HU, Min LIN. Low illumination image enhancement method based on quad-stable stochastic resonance[J]. Chinese Journal of Liquid Crystals and Displays, 2022, 37(7): 871
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Received: Dec. 30, 2021
Accepted: --
Published Online: Jul. 7, 2022
The Author Email: Min LIN (linm@cjlu.edu.cn)
