@inproceedings{rodner2008difference,
	pages = {263-269},
	year = {2008},
	booktitle = {IAPR Workshop on Document Analysis Systems},
	author = {Erik Rodner and Herbert Süße and Wolfgang Ortmann and Joachim Denzler},
	title = {Difference of Boxes Filters Revisited: Shadow Suppression and Efficient Character Segmentation},
}