We present a method for generating refined 2D illustrations from hand drawn
outlines consisting of only curve
strokes. The system controllably synthesizes novel illustrations by
augmenting the hand drawn curves' shape,
thickness, color and surrounding texture. These refinements are learned
from a training ensemble. Users can select
several examples that depict the desired idealized look and train the
system for that type of refinement. Further,
given several types of refinements, our system automatically recognizes the
curve and applies the appropriate
refinement. Recognition is accomplished by evaluating the likelihood the
curve belongs to a particular class based
on both its shape and context in the illustration.