code: def _remove_centre(Bc):
      index = [s // 2 for s in Bc.shape]
      Bc[tuple(index)] = False
      return Bc
  
imports: from __future__ import division
  import numpy
  from .internal import _get_output, _verify_is_integer_type, _check_2
  from .None import _morph
label_desc: Use image node_id 13 for calling a global function with example usage: _remove_centre(Bc) and returns: Bc