@inproceedings{ICDAR-1993-ParkerJS,
	author        = "James R. Parker and Cullen Jennings and Arunas G. Salkauskas",
	booktitle     = "{Proceedings of the Second International Conference on Document Analysis and Recognition}",
	doi           = "10.1109/ICDAR.1993.395734",
	isbn          = "0-8186-4960-7",
	pages         = "270--273",
	publisher     = "{IEEE}",
	title         = "{Thresholding using an illumination model}",
	year          = 1993,
}