M. Sezgin & B. Sankur (2004). Survey over image thresholding techniques and quantitative performance evaluation. Journal of Electronic Imaging. 13 (1): 146—165. doi:10.1117/1.1631315.
Nobuyuki Otsu (1979). A threshold selection method from gray-level histograms. IEEE Trans. Sys., Man., Cyber. 9 (1): 62—66. doi:10.1109/TSMC.1979.4310076.
Kittler, Josef & Illingworth, John (1985). On threshold selection using clustering criteria. Systems, Man and Cybernetics, IEEE Transactions on. SMC-15 (5): 652—655. doi:10.1109/tsmc.1985.6313443.
Lee, Sang Uk and Chung, Seok Yoon and Park, Rae Hong (1990). A comparative performance study of several global thresholding techniques for segmentation. Computer Vision, Graphics, and Image Processing. 52 (2): 171—190. doi:10.1016/0734-189x(90)90053-x.
