How to extract brain surface from MRI brain images?

Hi, I am new to Matlab and my project is brain tumor segmentation in MRI images. I need Brain surface extraction(BSE) code for my project. I want to apply different image segmentation techniques on MRI images after skull stripping from MRI images using BSE algorithm. Thanks...

[John D'Errico]

Then you should start writing. This is your project. We do not write code to your specs here.