I am trying to exclude multiple lakes and reservoirs from a Supervised landscape classification but at the moment I have not found a way to do this. So far I have used the following workflows:
1.Draw a polygon -> Clip -> Extract by mask) generates the opposite result.
2.Draw a polygon -> "Raster to Polygon" -> Reclassify -> Set Null, but the reclassification removes RGB symbology
I am using an Multiband High resolution Raster image I am working on the latest version of ARCmap for Desktop I would like to retain the RGB Composite symbology