arcpy 重分类

arcpy.gp.Reclassify_sa("dem.tif","Value","0 2000 1;2000 2100 2;2100 2500 3;2500 2800 4","C:/Users/dell/Documents/ArcGIS/Default.gdb/Reclass_tif1","DATA")

或则

outReclass = arcpy.sa.Reclassify("gisoracle.tif", "Value", 
                         arcpy.sa.RemapRange([[0,2000,"NODATA"],[2000,2100,1],[2100,2500,2],
                                     [2500,2800,3]]))