Tawfeeq, Yahya Jirjees, and Jalal A. Al-Sudani. “Digital Rock Samples Porosity Analysis by OTSU Thresholding Technique Using MATLAB”. Iraqi Journal of Chemical and Petroleum Engineering, vol. 21, no. 3, Sept. 2020, pp. 57-66, https://doi.org/10.31699/IJCPE.2020.3.8.