Segmented sub-volume of the micro-CT image: voxels with resolved porosity are labeled 0, voxels with unresolved (sub-resolution) porosity are labeled 1 and solid material voxels are labeled 9. This was used in "Bultreys T, Van Hoorebeke L, Cnudde V. Multi-scale, micro-computed tomography-based pore network models to simulate drainage in heterogeneous rocks. Adv Water Resour 2015;78:36–49. doi:10.1016/j.advwatres.2015.02.003."
