I am trying to refine the results of a supervised landscape classification analysis by removing large bodies of water whose reflection overlaps with the signature of an impervious class. I am working with a multiband raster (RBG) and have tried a few workflows but have yet to achieve the desired results.
Workflow 1: Create a polygon around the desired areas --> clip raster --> extract by mask
Workflow 2: Create a polygon around the desired areas --> Polygon to raster --> Reclassify --> Set Null
Workflow 1 yields the opposite of what I want, while Workflow 2 creates a raster that lacks the RBG bands and is blank. I suspect it is an error in the reclassification step, but I am not sure.
Any suggestions/ ideas would be greatly appreciated.
Desired area
Workflow 2 issues