W. F. Mahmudy, C. Dewi, R. Arifando, B. L. Ahmadie, and M. A. Rahman, “Combination of Morphology, Wavelet and Convex Hull Features in Classification of Patchouli Varieties with Imbalance Data using Artificial Neural Network”, JART, vol. 19, no. 6, pp. 633–643, Dec. 2021.