干旱区Landsat8全色与多光谱数据融合算法评价
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杨丽萍, 马孟, 谢巍, 潘雪萍
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Fusion algorithm evaluation of Landsat 8 panchromatic and multispetral images in arid regions
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Liping YANG, Meng MA, Wei XIE, Xueping PAN
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表2 融合效果评价指标
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Tab.2 Evaluation indicators of fusion results
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| 评价指标 | 原始影像 | PC法 | BT法 | HSV法 | G-S法 | HPF法 | WT法 | | 均值 | 86.616 1 | 101.682 0 | 33.077 9 | 105.451 5 | 104.975 4 | 81.893 3 | 91.212 9 | | 标准差 | 60.412 5 | 67.648 2 | 22.378 6 | 78.239 3 | 69.805 9 | 54.877 7 | 62.843 5 | | 平均梯度 | 1.840 7 | 1.043 0 | 0.482 7 | 2.590 8 | 1.081 3 | 1.066 5 | 1.500 2 | | 信息熵 | 5.178 2 | 4.668 0 | 3.907 3 | 5.404 8 | 4.784 9 | 4.667 2 | 5.225 6 | | 联合熵 | ? | 9.899 9 | 8.896 7 | 10.225 3 | 9.887 1 | 9.715 9 | 10.186 7 | | 空间频率 | 9.634 4 | 6.997 0 | 2.677 4 | 11.707 5 | 7.262 6 | 7.115 7 | 8.513 8 | | 结构相似性 | 1.000 0 | 0.923 3 | 0.720 2 | 0.839 5 | 0.918 5 | 0.951 2 | 0.951 3 | | 峰值信噪比 | ? | 21.685 3 | 11.766 1 | 18.989 4 | 20.545 8 | 24.459 3 | 31.354 9 | | 光谱扭曲度 | ? | 15.594 4 | 53.610 7 | 21.593 5 | 18.666 7 | 7.960 6 | 4.890 7 | | 偏差指数 | ? | 0.391 6 | 0.724 6 | 0.483 7 | 0.384 7 | 0.350 0 | 0.284 8 | | 相关系数 | 1.000 0 | 0.979 3 | 0.973 8 | 0.982 5 | 0.980 2 | 0.988 3 | 0.996 7 |
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