Is it possible to perform supervised classification on Sentinel Satellite Image with the minimum error. I compared two raster, one being the manual classification of an area using Photoshop CS6 and the other being Supervised Classification with Interactive Supervised Classification (ArcGIS). The pixels that didn't match represented more than 70% (Confusion Matrix). So, this is the farthest I've gone. I need to know if there is more that I can do with only ArcGIS Desktop.
This is the Manual Classified Image with Photoshop CS6.
This is the raster using Interactive Supervised Classification (This tool uses training polygons)
As you see there is a big space that should be colored with violet in the second image. Obviously in the future using CS6 should not be what we always use but this is only used by compare and see if Interactive supervised classification works.