- blobs(shape: List[int], porosity: float = 0.5, blobiness: int = 1, divs: int = 1)¶
Generates an image containing amorphous blobs
shape (list) – The size of the image to generate in [Nx, Ny, Nz] where N is the number of voxels
porosity (float) – If specified, this will threshold the image to the specified value prior to returning. If
Noneis specified, then the scalar noise field is converted to a uniform distribution and returned without thresholding.
blobiness (int or list of ints(default = 1)) – Controls the morphology of the blobs. A higher number results in a larger number of small blobs. If a list is supplied then the blobs are anisotropic.
divs (int or array_like) – The number of times to divide the image for parallel processing. If
1then parallel processing does not occur.
2is equivalent to
[2, 2, 2]for a 3D image. The number of cores used is specified in
porespy.settings.ncoresand defaults to all cores.
image – A boolean array with
Truevalues denoting the pore space
- Return type
This function generates random noise, the applies a gaussian blur to the noise with a sigma controlled by the blobiness argument as:
$$ np.mean(shape) / (40 * blobiness) $$
The value of 40 was chosen so that a
blobinessof 1 gave a reasonable result.
Click here to view online example.