"""
Apply anti-alias filter on a binary ANTsImage
"""
__all__ = ['anti_alias']
import ants
from ants.internal import get_lib_fn
from ants.decorators import image_method
[docs]
@image_method
def anti_alias(image):
"""
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)
"""
if image.pixeltype != 'unsigned char':
if image.max() > 255.:
image = (image - image.max()) / (image.max() - image.min())
image = image.clone('unsigned char')
libfn = get_lib_fn('antiAlias%s' % image._libsuffix)
new_ptr = libfn(image.pointer)
return ants.from_pointer(new_ptr)