Inconsistent foreground/background labels

[MattTheCuber]

Hello,

This is probably a problem on my end due to lack of understanding of how this library works. When using this library to generate a mesh from a 3D binary array, I am getting inconsistent foreground/background labels and can't seem to find a pattern for this. Below is my code:

import itk
from itk import itkCleaverImageToMeshFilterPython

data = np.array(...)

tet_mesh, triangle_mesh = itkCleaverImageToMeshFilterPython.cleaver_image_to_mesh_filter(itk.image_from_array(data))
itk.meshwrite(triangle_mesh, "test.vtk")

Sometimes the background is 0s while the foreground is 1s when I inspect this mesh. I can't seem to find a way to reliably determine when it's one or the other.