Some exclusive features of the software :-
Image editing and cleanup
Despeckle, bias, mirror, and touch up any image.
Raster Entity Manipulation (REM)
Apply customary AutoCAD commands on raster regions and primitives. Ability to remove raster images, lines, arcs, and circles efficiently.
Vectorization tools
Generate lines and polylines out of raster images, and transform raster files into vector drawings.
Image transformation functionality
Demonstrate and evaluate geo images in AutoCAD Civil 3D civil engineering software and AutoCAD Map 3D mapping software.
The most updated version is AutoCAD Raster Design 2018 that contains some exciting features like improved scanned drawings with raster-to-vector conversion as well as support for windows 32-bit and 64-bit.
Download a 30-days trail version from the following link www.autodesk.com