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Display#2 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Option—WarpFile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