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pro vyhledávání: '"Porto Alegre Braga, Camila"'
Autor:
Winck Mahl, Carlos Eduardo, Gegler, Aderson, Porto Alegre Braga, Camila, Xavier Machado, Liana, Fontanella, Vania
Publikováno v:
Revista da Faculdade de Odontologia de Porto Alegre; v. 44, n. 2 (2003); 31-33
In order to evaluate the effect of JPEG compression in quantitative digital radiographic subtraction, 12 periapical x-rays of the lower molar region were digitized at 300 dpi and 8 bits, duplicated and saved as two subsets of images labelled 'A' and