numpyradiomics.dro.ellipsoid

numpyradiomics.dro.ellipsoid(radii_mm=(30.0, 10.0, 2.5), spacing=(1.0, 1.0, 1.0), padding_mm=5.0)

Creates a binary mask of a solid ellipsoid.

Parameters:

• radii_mm (tuple) – Physical radii (Rx, Ry, Rz) in mm.

• spacing (tuple) – Voxel spacing (Sz, Sy, Sx) in mm.

• padding_mm (float) – Padding around the object in mm.

Returns:

Dummy intensity image (value 100 inside). mask (np.ndarray): Binary mask (uint8).

Return type:

image (np.ndarray)

Example

>>> from numpyradiomics.dro import ellipsoid
>>> # Create an isotropic sphere (radius 10mm) with 0.5mm spacing
>>> image, mask = ellipsoid(radii_mm=(10, 10, 10), spacing=(0.5, 0.5, 0.5))
>>> print(mask.sum())  # Number of voxels in the sphere
33489