"This set of Matlab files implements Level Set Methods and follows Osher and Fedkiw's book. A combination of curvature-based forces, vector field-based forces and forces in the normal direction can be used."
If you find difficulty implementing the narrowband level set methods, this simple library is for you. The library can be used as a proof of concept when developing a new idea. Implementing the library in C++ is a must if speed matters.