實驗四 使用envi進行影像鑲嵌

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1、實驗四使用ENVI進行影像鑲嵌[實驗目的]：掌握ENVI影像鑲嵌處理的知識，在何種情況下需要進行影像鑲嵌，影像鑲嵌時需要注意哪些問題。[實驗內容]：1.基于像素的影像鑲嵌2.基于地理坐標的影像鑲嵌3.鑲嵌時的色彩均衡[實驗準備]：數(shù)據(jù)：文件夾envidata/avmosaic基于像素的影像鑲嵌（Pixel-BasedMosaicking）FileDescriptiondv06_2.imgAVIRISScene02dv06_2.hdrENVIHeaderforabovedv06_3.imgAVIRISScene03dv

2、06_3.hdrENVIHeaderforabovedv06a.mosMosaicTemplateforend-to-endAVIRISmosaicdv06b.mosMosaicTemplateforfeatheredoverlappingAVIRISmosaicdv06_fea.imgFeatheredMosaicimagedv06_fea.hdrENVIHeaderforabove基于地理坐標的影像鑲嵌（GeoreferencedMosaicking）FileDescriptionlch_01w.imgWarpe

3、d,histogrammatchedimagelch_01w.hdrENVIHeaderforabovelch_01w.annCut-linefeatheringannotationforabovelch_02w.imgWarped,histogrammatchedimagelch_02w.hdrENVIHeaderforabovelch_a.mosMosaicTemplateforGeoreferencedImageMosaickinglch_mos1.imgGeoreferencedmosaicresultlch

4、_mos1.hdrENVIHeaderforabove5鑲嵌過程中的顏色平衡（ColorBalancingDuringMosaicking）FileDescriptionmosaic1_equal.datAsubsetfromaLandsat7ETMimageforwhichahistogramequalizationstretchhasbeenappliedtoeachbandindependentlymosaic1_equal.hdrENVIHeaderforaboveimagemosaic_2.datAnoth

5、ersubsetfromthesameLandsat7ETMimage,withoutanystretchingappliedmosaic_2.hdrENVIHeaderforaboveimage[實驗步驟]：一、基于像素的影像鑲嵌Map→Mosaicking→PixelBasedfromtheENVImainmenu.輸入并放置影像。1.SelectImport→ImportFilesfromthePixelBasedMosaicdialog.2.IntheMosaicInputFilesdialog,clickO

6、penFile,navigatetotheavmosaicdirectory,andselectthefiledv06_2.img.3.IntheMosaicInputFilesdialog,clickOpenFileagainandselectthefiledv06_3.img.4.IntheMosaicInputFilesdialog,holddowntheShiftkeyonyourkeyboardandclickonthedv06_2.imganddv06_3.imgfilenamestoselectthem

7、.ClickOK.5.IntheSelectMosaicSizedialog,specifythemosaicsizebyentering614fortheXSizeand1024fortheYSize.6.IntheYOtextbox,enteravalueof513andpresstheEnterkeyonyourkeyboard.Thedv06_3.imgisplaceddirectlybelowdv06_2.img.7.InthePixelBasedMosaicdialog,selectFile→Apply.

8、WhentheMosaicParametersdialogappears,entertheoutputfilenamedv06.imgandclickOKtocreatethemosaic.8.Displaythemosaickedimagebyclickingonthedv06a.mosbandnameintheAvailableBandsL