Automatically separate area graphics, line graphics, and text graphics.
Area Graphics→Contour Line Conversion
Line Graphics→Core Line Conversion
Text Graphics→Text Recognition
The library also has the functionality to extract graphics and text from negatives (black text on white background). It can also extract combinations of negatives and positives.

Separation of Text Graphics, Line Graphics, and Area Graphics in Raster Vector Conversion

Separation of Text Graphics, Line Graphics, and Area Graphics in Raster Vector Conversion