== BFC Correction Tool == The BFC correction tool is a graphical user interface for manually correcting the bias field in the MRI images.The tool allows users to manually select points corresponding to gray matter, white matter and CSF. Then, the bias field is corrected by finding a smooth scaling function such that the selected points are at approximately median intensity of the corresponding tissue types. To install the BFC correction tool, you need matlab MCR for R2012a which can be downloaded from http://www.mathworks.com/products/compiler/mcr/ Here are the step by step instuctions for downloading and using the BFC correction tool. 1. Download the tool Win64, MACi64 2. unzip the files into a folder. 3. {{attachment:gui_tool.png||height="309",width="430"}}