W. Wu, J. Hou, Z. Zhang, F. F. Li, R. Zhang, L. Gao, and H. Ni, ``Information entropy-based
strategy for the quantitative evaluation of extensive hyperspectral images to better
unveil spatial heterogeneity in mass spectrometry imaging,'' Analytical Chemistry,
vol. 94, no. 29, pp. 10355-10366, 2022.
