From: An innovative document image binarization approach driven by the non-local p-Laplacian
PSNR
2009
2010
2011
2012
Average
OTSU [3]
15.17
16.85
13.86
14.40
15.07
Niblack [5]
8.08
8.19
7.76
8.34
8.09
Bernsen [4]
4.55
4.14
4.50
3.98
4.29
Sauvola et al. [6]
15.16
15.34
15.22
14.83
15.14
Singh et al. [8]
12.99
14.99
13.69
13.28
13.74
Lu et al. [9]
15.86
16.81
14.69
16.25
15.90
Proposed
17.41
18.60
17.56
18.81
18.09
