Random walker algorithm ======================= from *Random walks for image segmentation*, Leo Grady, IEEE Trans Pattern Anal Mach Intell. 2006 Nov;28(11):1768-83. Dependencies ------------ * numpy >= 1.4, scipy * optional: pyamg, numexpr Installing pyamg and using the 'cg_mg' mode of random_walker improves significantly the performance. Installing numexpr makes only a slight improvement. Installing ---------- sudo python setup.py install Testing ------- nosetests test_random_walker.py