@article{
  author = {Valizadeh, M., Kabir, E.},
  title = {A Contrast Independent Algorithm for Binarization of Document Images},
  journal = {Nashriyyah -i Muhandisi -i Barq va Muhandisi -i Kampyutar -i Iran},
  year = {2010},
  volume = {8},
  number = {1},
  pages = {40-48},
  doi = {}
}