TM数据几何校正

实验三TM数据的几何校正 1, 运行 ENVI4.2; 2, 由Landsat Fast打开a的TM数据生成 Display 3，有同样的方法打开b的TM数据生成Display2 4, 由Link连接两幅图1、2 5, ①由 主菜单 Map Registration SelectGCP Imagetolmage File Options R Warp from GCPs Image to Image Warp from GCPs Image to Map Customize Map Projections Convert Map Projection Layer Stacking Ortho rectification Mosaicking C Gray Scale RGB Color Select GCPs Image to Image Select GCPs Image to Map | Map | Vector Topographic Radar Window i7 Registration Georeference from Geometry Georeference SPOT Georeference SeaWiFS Georeference ASTER Georeference AVHRR Georeference ENVISAT Geo reference MODIS Georeference RADARSAT 日 Available Bands ListJW旦I Automatic Registration Image to Image 0 0 0 b 0 100 |o 由霸 Map Info E]- fll header, dat ；□ Meta Band 1 0. 4850 □ Meta Band 2 0.5600 iMeta Band 7 2.2200 Meta Band 4 0. 8300 Meta Band 3 0. 6600 ②以2为基准校正1 ③然后选点（至少五个基准点，要严格校准，误差控 制在0.5以内，并保存点） ④在选点对话框由OptionWarpFile选择需校准图像 CD 回 0.56 0.66 rn R3 Memory即可 SI Ground Control Points Selection File [ Options ] Help Warp Displayed Band... Warp File... Warp Displayed Band as Image to Map... Warp File as Image to Map.., Reverse Base/Warp 1st Degree RST Only Auto Predict V Label Points Order Points by Error Clear All Points Set Point Colors... Automatically Generate Tie Points... 6, 打开校正后的波段Memoryl,并连接与校正前的 对比 7, 完成几何校正 2011/12/30