def METHOD_NAME(mic_fname, pos_fname, boxSize, out_name, downFactor=1):
  """ Extract particles from one micrograph
  """
  if os.path.isfile(out_name): return
  cmd = "xmipp_micrograph_scissor -i %s --pos %s -o %s --Xdim %d --downsampling %f --fillBorders"%(mic_fname, 
                                                              pos_fname, out_name, boxSize, downFactor)
  print(cmd)
  check_call(cmd, shell=True)