Sheng Wang, Xinglin Zhou, Pan Zhu, Jianping Dong. Remote Sensing Image Enhancement Based on Non-Subsampled Contourlet Transform and Weighted Guided Filtering[J]. Laser & Optoelectronics Progress, 2020, 57(12): 121018
- Laser & Optoelectronics Progress
- Vol. 57, Issue 12, 121018 (2020)
Fig. 1. NSCT. (a) Decomposition process; (b) ideal frequency decomposition
Fig. 2. Diagram of images smoothing filter effect with different r and ε. (a) ε=0.01; (b) ε=0.04; (c) ε=0.16
Fig. 3. Curves of nonlinear enhancement function
Fig. 4. Remote sensing images. (a) City; (b) island; (c) road
Fig. 5. Comparison of enhancement effects of different methods. (a) HE; (b) MSR; (c) DWT[21]; (d) Ref. [22]; (e) proposed method
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Table 1. Evaluation of objective indicators of five enhancement methods
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Table 2. Quantitative comparison of indicators of five methods
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