extract_cylinder#
- extract_cylinder(im, r=None, axis=0)[source]#
Returns a cylindrical section of the image of specified radius.
This is useful for making square images look like cylindrical cores such as those obtained from X-ray tomography.
- Parameters:
im (ndarray) – The image of the porous material. Can be any data type.
r (scalr) – The radius of the cylinder to extract. If
None
is given then the default is the largest cylinder that can fit inside the specified plane.axis (scalar) – The axis along with the cylinder will be oriented.
- Returns:
image – A copy of
im
with values outside the cylindrical area set to 0 orFalse
.- Return type:
ndarray
Examples
Click here to view online example.