结合NSCT变换和引导滤波的多光谱图像全色锐化算法
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徐欣钰, 李小军, 盖钧飞, 李轶鲲
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A multispectral image pansharpening algorithm based on nonsubsampled contourlet transform (NSCT) combined with a guided filter
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XU Xinyu, LI Xiaojun, GE Junfei, LI Yikun
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表1 WorldView-2图像客观评价指标计算结果
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Tab.1 Calculation results of objective evaluation indexes of WorldView-2 image
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| 方法 | 全分辨率评价 | 降分辨率评价 | | Dλ | Ds | QNR | Q4 | SAM | ERGAS | UIQI | CC | | 本文算法 | 0.020 3 | 0.034 1 | 0.946 2 | 0.705 3 | 3.533 7 | 5.238 4 | 0.725 2 | 0.861 2 | | GSA | 0.103 0 | 0.399 9 | 0.538 3 | 0.670 6 | 4.609 1 | 6.356 8 | 0.682 9 | 0.827 7 | | HPF | 0.063 8 | 0.129 7 | 0.814 8 | 0.688 5 | 3.739 0 | 5.534 1 | 0.699 6 | 0.846 1 | | SFIM | 0.059 3 | 0.131 1 | 0.817 4 | 0.691 0 | 3.826 1 | 5.621 6 | 0.706 8 | 0.843 3 | | Indusion | 0.042 3 | 0.109 2 | 0.853 0 | 0.588 5 | 3.979 7 | 6.725 8 | 0.601 7 | 0.777 7 | | MTF-GLP-HPM-PP | 0.113 6 | 0.268 9 | 0.648 1 | 0.701 7 | 4.115 7 | 5.616 7 | 0.714 6 | 0.847 0 | | MTF-GLP-CBD | 0.042 6 | 0.132 7 | 0.830 4 | 0.698 6 | 4.293 6 | 5.740 5 | 0.711 4 | 0.849 0 |
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