Fig. 4

Processing workflow for sample S8 (filled fracture). (a) Original CT slice; (b) cropped region based on ROI; (c) masked slice showing only the segmented rock volume; (d) spline fitted to the fracture trace for IT computation.

Processing workflow for sample S8 (filled fracture). (a) Original CT slice; (b) cropped region based on ROI; (c) masked slice showing only the segmented rock volume; (d) spline fitted to the fracture trace for IT computation.