Cancer Imaging Phenomics Toolkit (CaPTk)  1.6.2.Alpha
N4 Bias Correction (ITK filter)


This tool corrects an image, already loaded in CaPTk, for magnetic field inhomogeneities using a non-parametric method [1].

REQUIREMENTS:

  1. An image loaded in CaPTk.

USAGE:

  1. Load an image in CaPTk.
  2. Launch the tool using the 'Preprocessing' -> 'BiasCorrection' menu option.
  3. Specify the output filename.
  4. Click on 'Save'.
  5. The output image is saved in the specified folder and automatically loaded in CaPTk.

Reference:

  1. J.G.Sled, A.P.Zijdenbos, A.C.Evans. "A nonparametric method for automatic correction of intensity nonuniformity in MRI data" IEEE Trans Med Imaging. 17(1):87-97, 1998.