Evaluating noise in digitized radiographic images by means of histogram Avaliação de ruído em imagens radiográficas digitalizadas por meio do histograma

To evaluate the performance of three digital devices regarding the noise added to digital radiographic images containing different optical densities. METHODS: A radiographic image was digitized repeatedly ten times using two scanners (HP 4c/T and HP 5370C) and a digital camera (Nikon 990). A histogr...

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Bibliographic Details
Main Authors: Izabel Regina Fischer Rubira-Bullen, Maurício Cunha Escarpinati, Homero Schiabel, Marcelo Andrade da Costa Vieira, Fischer Rubira, José Roberto Pereira Lauris
Format: Article
Language:English
Published: University of São Paulo 2006-12-01
Series:Journal of Applied Oral Science
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572006000600005