In CorelDraw I can import a bitmap (say a JPG logo which has been copied so many times that it is long past the scruffy stage) and TRACE it. This function finds the edges and creates objects from them. It approximates the colours of fills and the end result is a vector graphic which can be edited back to its original condition. Also very useful for creating vector graphics from scanned drawings.
This feature is essential for more than half the vector graphics I create. Please put it on your ToDo list.