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ENVI下的几何校正步骤I:forestrymentougouoriginalmsENVI下的几何校正步骤在通过某种途径得到了控制点的文件坐标和地图坐标后，通过ENVI进行几何校正的步骤如下：控制点文件保存为.txt文件或.pts文件。1. 打开图像文件圃| ENVI 4.3-Ini x|File Basic Tools Classficatiun Transform Filter Spectral Map Vector Topziqrdphc Rcdar Window HelpOpen Image FileOpen Vector File 峙Open External FileOpen Previous FileLaunch ENVI ZoomEdit ENVI HeaderGenerate Test DataData ViewerSave File 冉5Import from IDL VariableExport to IDL Variable Compile IDL Module IDL CPU ParametersTape UtilitiesScan Directory List Change Output DirectorySave Session to Script Execute Startup Script Restore Display GroupENVI Queue Manager ENVI Log ManagerClose All FilesPreFer&ncesExit2. 从波段列表中选择波段组合顺序，并加载图像。对灰度图像，直接点击安钮即可。对于多光谱或彩色图像，选择好波段顺序后，点击。我们下面以小卫星多光谱图像为例来进行说明。3. 选择控制点文件，检查控制点文件是否能被正确读取。Map3Registration3 Select GCPs:Image to Map。Overly Enhance Took Window.一=J 旦i 闵Fite Basic lools Classficatjon Transform Filter Stectral | C4* Vector Topcuraphic Radar Wflndow HelpGPS-UnkMerge OH mapjiraj, biF File-jn| xGeoreference from Input ijeametryGaorafererce SPOTGcorcferencE SmWFSSelect GCPs: Image to InrageCustemtze Map Prpjecdonc Convert Map PvojectiDn Larger ShchngMap Coordiriake Ccrwerter ASCII Gxirdnate ConversmDims # 1 盟舀氏叭。ESQOrthcrectfcafcionNosotkingWarp from itps; Image to Imag$ Warp from QCPs; mage to MapJXiJtDmaUc Registration! Innage tojeorefererce ftSTERGeorefETETte awrrGeDtefErerce EBAIJSATCeorefererce MODI5Georerererce PiDflRSATELikl RTCs_E605L4 im;InfoiLayer-S.nta_iris_060514. ing|Lfir_3 ： mtg_m5_060514. ingLd&H fXxB DispL&.y *1，RegEtrationSelect GCPs! Immg to Map寤 ENV1 4.3在弹出的对话框中选择投影（坐标系统）和分辨率。我们统一选择bj_54。对于 全色图像，分辨率为4米，对于多光谱数据，分辨率一般为32米，但少量数据 也可能为36米，需要根据具体图像来确定，分辨率可以从波段列表中的Map Info可以看出。B54State Plai旧( 27：l State Flme (M 83) Tr：=tiLEVt!r se M ercitcir Tr:aiLSverz电 Mei-catijr Bj_54_or_ERI)AS Tr:iiL-ver - e Merc it orkrgerLtirLa 一 Zone 1Ar g;已 rLtin；丑 一 Hcblb 2K Tixel Si ze 如-00000000 Metersi Pixel Si w .也.LIIIIIILILIMe + ereCidiLcelULsr:让对WMprm LiOMr_l Lqw。 :Uht_3阵WE心IDL.&.3当脚MSI叫T Piel Siie|32. 00000000k Pijcei size|32. ooooaoooirgentirLa -Arbi traryGeograpkic Lai/Lon innState Plane (NAD 27)State Flane OfM 83)-Iniifflj Ground Control Points SelectionFile Options Help-inlxi-ini xlFile Overlay Enhance Tools Window垂, # 1 (R:La yer_l pG:Layer_2pB:La yer_3):mtg_ms_0 605141.#1 Scroll (a.#1 2oom 4h4.关闭控制点选择对话框。WhpItvi ：lraglxj hj4J ST jTTJS. vWO nbftjngJKi. *113_吼味-ajll% MrTfljfc CWRkwri Tpftm 硬牌 ter由Ho目独Htt-Miit QFt kiqvta liwfi3deii GCPs Itage-H! HWHKSOuilDvm MiaartKHOswetNap Pwj!ft5 CiOrtHfc CiMWSteWCTTCcftwiajri* 1U.t* IptDG*r|l Hi. .g|l 1id F血M： 2383 Mid |iQ lirLa Lol; Mnl |停1 K3F r+*SvsamH! Ihiim#5elett GCPsi Innage to MapWsp From GCPs; Image to ImajsrtharectificatlonMDEachngGeoreference from nput Geometry 石白口馆定陀nUE 3POT，Gaorafenence SaBYWFS，Georeference ASTER*GeoreFerence AVHRP.GeoreFerence ENISAFGeoreference MODE Georefcrencc RADWSAT Build RFCsWarp frqrn GCFs: maoe to 恢Autorrdbc Rcflistrdtian! m&se to InnaaeCutamcs Map Projections ConvEft Mep Projection Layer StockirqMap Coordnate Lcnverter ASCI Gaordinate Conerscri Merge Old -map_praj.tit, FilsGPS-Llnk选择刚才查看过的控制点文件设置投影信息和分辨率Select Registration Froj ecti on New.Lai/Lon(HAD 27)OfAD 83)BJ 54krgentirLa 一 Zone 1Ai-gen+irLa 一 Zone 2krgerLtirLa 一 Zone 3Ar g;已 rLtin；丑 一 Hims； kSi is： EByte File Typw : *口利=Type： Byte OrderPr oj e ctionFix elDa+njiTiWav el engthUpper Left点击OK后，在弹出的对话框中选择要进行校正的影像。142B k 3 ESQ9, 943, 699 bytes. EFUAS IMAGlllEHost ilntel)Tr ：=LTLSverEH! Mer cat or 32 M e t er e NqilhCorner :Descr ipt icm： EFLElJiSFile Imported, into 10:40:06 2007点击OK后，在弹出的对话框中选择校正方法。
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