Sittisak Rodtook, Yuttapong Rangsanseri. Adaptive Thresholding of Document Images Based on Laplacian Sign. In 2001 International Symposium on Information Technology (ITCC 2001), 2-4 April 2001, Las Vegas, NV, USA. pages 501-505, IEEE Computer Society, 2001. [doi]
Abstract is missing.