i have obtained a flow accumulation map from the aster dem image. the value obtained from the map is 0 to 2684501. now i need to change these value to 1 to 2684501 . so please tell me the procedure to change the default value
in ArcGIS online??? For arcmap... why not add 1 to the output, otherwise you have a whole messy reclass to deal with but extending the upper range by 1 shouldn't cause an issue. otherwise use a Con statement and reclass 0 to some other value, keeping the others the same.
thank you sir
Depending on what you want to do with the pixels of value 0, you could either replace them with NoData or 1 using Con tool or Reclassify, as suggested by Dan Patterson
Con—Help | ArcGIS for Desktop
Reclassify—Help | ArcGIS for Desktop
Retrieving data ...