The same tool was used to explore features of grits 1 and 2 of Fig.9.
The surface plots were drawn showing 1.2 mm and 0.86 mm heights for the grits 1 and 2 respectively.
Also,the line profiles were drawn to find out grits radius(the conversion factor is 0.28 mm/pixel), it was found to be 0.28 and 0.84 mm correspondingly.