Extracting raster value to specific range using ArcPy?

Question

I have multiple rasters with range 0 - 255. I want to extract range from 0 to 100 using Arc GIS python script and after extraction I want to multiply all raster by 0.01 and save it with same name as it input using loop function. I have made one script till raster extraction, but I am getting an error while running the script. Below I have shown my script.

import arcpy, os 
arcpy.CheckOutExtension('Spatial') 
arcpy.env.workspace = r"D:\MODIS-NDVI\FPAR-2005\MASKED-FPAR-05" 
outFolder = r"D:\MODIS-NDVI\FPAR-2005\MASKED-FPAR-05A" 
arcpy.CheckOutExtension("Spatial") 
list = arcpy.ListRasters 
for inRaster in rasters: 
 outRaster = outFolder + "\\" + inRaster 
 arcpy.sa.con(inRaster >3000,inRaster)

• radouxju: welcom to GIS SE. Please add the error message when you post this kind of question. Why is it in your script > 3000 and your text between 0 and 100 ?

Answer 1

there are a few things to check, but your error could be a missing indentation, "con" without a capital letter or the missing () after ListRasters. I've replaced some part of your code (not all changes are necessary) and added the save.

import arcpy, os 
from arcpy.sa import *
arcpy.CheckOutExtension('Spatial') 
arcpy.env.workspace = r"D:\MODIS-NDVI\FPAR-2005\MASKED-FPAR-05" 
outFolder = r"D:\MODIS-NDVI\FPAR-2005\MASKED-FPAR-05A"
list = arcpy.ListRasters() 
for inRaster in list:
 localRaster = Raster(inRaster)
 outRaster = Con(localRaster >3000, localRaster*0.01)
 outRaster.save(outFolder + "\\" + inRaster )