Bibliography
[1]

Federico Bolelli, Stefano Allegretti, Lorenzo Baraldi, and Costantino Grana. Spaghetti Labeling: Directed Acyclic Graphs for Block-Based Connected Components Labeling. IEEE Transactions on Image Processing, 29(1):1999–2012, October 2019.

[2]

Ping-Sung Liao, Tse-Sheng Chen, Pau-Choo Chung, and others. A fast algorithm for multilevel thresholding. J. Inf. Sci. Eng., 17(5):713–727, 2001.

[3]

Nobuyuki Otsu. A threshold selection method from gray-level histograms. IEEE transactions on systems, man, and cybernetics, 9(1):62–66, 1979.