ContourExtractor2DImageFilter: A subpixel-precision image isocontour extraction filter.
Zachary Pincus · The Insight Journal · 2006
This document describes itk::ContourExtractor2DImageFilter, an implementation of the arching squares2D contour-finding method using the Insight Toolkit ITK www.itk.org. This filter takes as input a 2D image (not necessarily binarized) and a contour value, and outputs zero or more itk::PolyLineParametricPath objects which represent the image contours at that value.