I have two rasters, A and A1.
Raster A is the image below that is greenish and has the following attribute table:
The table has two fields that I need: Value and class_name
Raster A1 is the image that is purplish and has the attribute table
A1's table has information on the part of raster A that is missing. This has been coded as 999999 in A1's table which I have circled in yellow below
My task is to fill in the missing part of A with the information in A1 (the Value in A1 that has been coded 99999). In other words, I need to expand the attribute table of A with another row for 9999999 found in the raster A1.
What is the quickest method to do this?
I have tried the Sample tool and it takes too long (I have to do this for over 10 rasters). I have tried Mosaic, but it does not give me both Value and class_name fields in the attribute table of A.