Xenolith Roundness Analysis

Roundness analysis for irregular objects

This code was modified from work produced by Zheng and Hryciw (2015): https://www.mathworks.com/matlabcentral/fileexchange/60651-particle-roundness-and-sphericity-computation

The detailed description of the code can be found in the paper by Zheng and Hryciw (2015) given below:

Zheng, J., and Hryciw, R.D. (2015). “Traditional Soil Particle Sphericity, Roundness and Surface Roughness by Computational Geometry”, Géotechnique, Vol. 65, No. 6, 494-506, DOI:10.1680/geot./14-P-192.

This code follows the roundness classification scheme created by Wadell (1932).

Modifications were made in order to calculate roundness for high resolution images of irregular, angular objects.

Discussion of this work and a description of the modifications made to the original script can be found in the paper by Mitchell (2026):

(full citation tbd)