Download ITK-SNAP

ITK-SNAP is a free software application for semi-automatic and manual segmentation of structures in three-dimensional and four-dimensional biomedical images. Originally developed at the University of North Carolina, the software combines active contour methods (snakes) with manual delineation tools to facilitate quantitative analysis in clinical and preclinical research. The project is currently maintained by the Penn Image Computing and Science Laboratory (PICSL) at the University of Pennsylvania.