Arkan 

Automatic B-spline tool for fast, intuitive and qualitative contour and mask outlining. Arkan is designed to convert border of a raster mask (selection of an object in scene) or any closed polyline into B-spline representation.
b-spline snake outlining cubic bezier curve mask editing minimum description length spline knots and junctions

Pixopedia 24 

A new approach to image editing and painting, animation and video editing. Perform any action through brush movement. Realtime 3D brushing and instant shadowing. New warping methods, facial deformations. Autobrush technique with contour tracking.
image editor painter warp convolve ornaments drawing autobrush filters texture color rotate resize clone