Quickshear uses a skull stripped version of an anatomical images as a reference to deface the unaltered anatomical image.

Usage:

quickshear.py [-h] anat_file mask_file defaced_file [buffer]

Quickshear defacing for neuroimages

positional arguments:
  anat_file     filename of neuroimage to deface
  mask_file     filename of brain mask
  defaced_file  filename of defaced output image
  buffer        buffer size (in voxels) between shearing plane and the brain
                (default: 10.0)

optional arguments:
  -h, --help    show this help message and exit

For a full description, see the following paper: