土地利用信息的简单分析利用，生成土地利用现状图。具体步骤如下：
3.1遥感影像解译
3.1.1影像获取
本次实习所获取的遥感影像为ENVI4.7安装文件自带Landsat 7 TM影像影像。该影像为美国怀俄明州大角羊盆地(Bighorn Basin)的TM影像，经过了辐射校正和几何校正附带了基本的地理坐标信息。具体描述如下：
ENVI
description = {Bighorn Basin, Landsat TM, Calibrated to Reflectance}
samples = 512
lines = 512
bands = 6
header offset = 0
file type = ENVI Standard
data type = 1
interleave = bsq
sensor type = Landsat TM
byte order = 0
map info = {UTM, 1.000, 1.000, 277904.645, 4906894.331, 2.8500000000e+001,
2.8500000000e+001, 13, North, units=Meters}
coordinate system string =
{PROJCS["UTM_Zone_13N",GEOGCS["GCS_North_American_1927",DATUM["D_North_American_1927",SPHEROID["Clarke_1866",6378206.4,294.9786982]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-105.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]} wavelength units = Micrometers
z plot range = {0.00, 100.00}
z plot titles = {Wavelength, Reflectance}
band names = {TM Band 1, TM Band 2, TM Band 3, TM Band 4, TM Band 5, TM Band 7}
wavelength = {0.485000, 0.560000, 0.660000, 0.830000, 1.650000, 2.215000}