I have been working on polygonizing the vegetation areas in some counties from imagery. When I have the mosaic raster locally I can easily get the polygons using Image Classification Toolbar. But when it comes to using online ESRI imagery I don't know what to do. I was wondering if someone could suggest me a way to help in saving these basemap as raster locally. When I right lick on the layer it doesn't give me the Export option.
Using ArcGIS 10.2 for Desktop, I just tested drawing imagery in ArcMap from Add Basemap and then using File | Export Map to create a raster (in my case *.jpg) file, and this worked fine.