my picture was to big to handle the classification in QGIS. Now I used supervised classification SNAP. As it is only an image from google earth, a postprocessing has to be made. My question is if SNAP has a proper postprocessing tool. I anyway am not sure if an image of this size (1.29 GB) can be postprocessed in an effective way.
My second question is if validation has something to do with postprocessing. I guess not, because validation shows only the accuracy.
Thank you very much.