Xiangdan Hou, Mengjing Zheng, Hongpu Liu, Bocen Li. Medical Image Enhancement Algorithm Based on Shearlet Domain and Improve Pal-King Algorithm[J]. Laser & Optoelectronics Progress, 2019, 56(3): 031006
- Laser & Optoelectronics Progress
- Vol. 56, Issue 3, 031006 (2019)
Fig. 1. Shearlet transformation in frequency domain
Fig. 2. Shearlet transform of frequency domain support space
Fig. 3. (a) Membership function curve of the original image; (b)improved membership function curve
Fig. 4. Experimental results of different algorithms for lung image. (a) Original image; (b) shearlet[10] method; (c) fractional differential[16] method; (d) improved Pal-King[14] method; (e) proposed method
Fig. 5. Experimental results for different methods. (a) Original image; (b) shearlet[10] method; (c) fractional differential[16] method; (d) improved Pal-King[14] method; (e) proposed method
Fig. 6. Experimental results for different methods. (a) Original image; (b) shearlet[10] method; (c) fractional differential[16] method; (d) improved Pal-King[14] method; (e) proposed method
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Table 1. Comparison of average objective criteria for lung images
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Table 2. Comparison of objective criteria for different algorithms in Fig. 5
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Table 3. Comparison of objective criteria for different algorithms in Fig. 6
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