@inproceedings{ICDAR-1997-SawakiHI,
	author        = "Minako Sawaki and Norihiro Hagita and Kenichiro Ishii",
	booktitle     = "{Proceedings of the Fourth International Conference on Document Analysis and Recognition}",
	doi           = "10.1109/ICDAR.1997.620547",
	isbn          = "0-8186-7898-4",
	pages         = "491--494",
	publisher     = "{IEEE Computer Society}",
	title         = "{Robust Character Recognition of Gray-Scaled Images with Graphical Designs and Noise}",
	year          = 1997,
}