Surface Feature Classification Vegetation

Is it possible to somehow automatically (or if necessary manually) classify surface features (trees, shrubs/other vegetation, bare ground) and can it be done with RGB imagery or do I need to use a multispectral camera?  The end game is to be able to do mapping of surface features (2D) in a GIS program.  I know you could import a GeoTIFF and manually identify and draft the boundaries of various surface features but wondering if there is a workflow (data acquisition and/or processing) that may speed things up and reduce the manual work required?

 

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