File Basic Tools Classificationom Filter Spectral Map Vector Topographic Radar Inage Sharpenins Conponents 步骤1：选择 变换方式 Color Transforns sVt。GB Symthetic Color Image IS to R证 HSV to RGB (USGS Munsell) Tasseled Cap 国RCB to HSV Input☒ 步骤2：选择 RGB波段 o》Cancel RCB to HSV Input Bands ☒ Available Bands List TM Band 2 (0.5 TH Band51.8500) TM Band72.2150】 RCB to HSY Paraseters ☒ Band 7 (2.2150):can_ 步骤3 Dutput Result to File CMemory Dins:B40×400Cyte Enter Output Filename Choose 「输入文件名，按Choosef保存 OK Cancel Reset OK Queue Cancel 三、空间滤波（平滑和锐化） 方法l:主图象窗口Enhance-filter
三、空间滤波（平滑和锐化） 方法 1：主图象窗口 Enhance-filter
包1(R:ⅡBamd4G:nBmd3,B:1Ba:回☒ File Overlay nco Tools Window Filter Inage】Linear harpen Smooth [3x3T [Inage]Square Root Snooth [5x51 0-25 [Zoom]Gaussian [Zoom】Equalization [Zoon]Square Root [Serol1】Gaussian [Serol1】Square Root 方法2：ENWI长条菜单栏Filter SERVI File Basic Tools Classification Transforn Spectral Map Vector Topographic Convolutions and Morphology 步骤1 Filtering Convolutions and lorpholo. ▣☒ File Convolution Morphology Options Melp High Pass Lov Pass Ker Lanlecian 步骤2：，选择开 Directional 骨或锐化类型 Gaussian High Pass 1 E1.0 Gaussi an Low Fass -1.0 Sobel Roberts User Defined Quick Apply Apply To File
方法 2：ENVI 长条菜单栏 Filter