@article{rubira-bullen_escarpinati_schiabel_vieira_rubira_lauris_2006,  title={Evaluating noise in digitized radiographic images by means of histogram},  volume={14},  ISSN={1678-7757},  url={https://doi.org/10.1590/S1678-77572006000600005},  DOI={10.1590/S1678-77572006000600005},  number={6},  journal={Journal of Applied Oral Science},  publisher={Faculdade De Odontologia De Bauru - USP},  author={Rubira-Bullen, Izabel Regina Fischer and Escarpinati, Maurício Cunha and Schiabel, Homero and Vieira, Marcelo Andrade da Costa and Rubira, Fischer and Lauris, José Roberto Pereira},  year={2006},  month={Nov},  pages={410–414} }