Projection-based text line segmentation with a variable threshold. - Roman Ptak; Bartosz Zygadlo; Olgierd Unold (Int. J. Appl. Math. Comput. Sci., 2017)

Line Segmentation of Handwritten Text Using Histograms and Tensor Voting. - Tomasz Babczynski; Roman Ptak (Int. J. Appl. Math. Comput. Sci., 2020)