code: def anti_alias(image):
      
      if image.pixeltype != 'unsigned char':
          if image.max() > 255.:
              image = (image - image.max()) / (image.max() - image.min())
          image = image.clone('unsigned char')
  
      libfn = utils.get_lib_fn('antiAlias%s' % image._libsuffix)
      new_ptr = libfn(image.pointer)
      return iio.ANTsImage(pixeltype='float', dimension=image.dimension, 
                           components=image.components, pointer=new_ptr)
docs: Apply Anti-Alias filter to a binary image
      
      ANTsR function: N/A
  
      Arguments
      ---------
      image : ANTsImage
          binary image to which anti-aliasing will be applied
  
      Returns
      -------
      ANTsImage
  
      Example
      -------
      >>> import ants
      >>> img = ants.image_read(ants.get_data('r16'))
      >>> mask = ants.get_mask(img)
      >>> mask_aa = ants.anti_alias(mask)
      >>> ants.plot(mask)
      >>> ants.plot(mask_aa)