The effects of incremental brightness and contrast adjustments on radiographic data: A quantitative study

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dc.contributor.authorGüneri P.
dc.contributor.authorLomçali G.
dc.contributor.authorBoyacioglu H.
dc.contributor.authorKendir S.
dc.date.accessioned2019-10-27T00:11:45Z
dc.date.available2019-10-27T00:11:45Z
dc.date.issued2005
dc.departmentEge Üniversitesien_US
dc.description.abstractObjectives: To determine the border level of brightness and contrast changes in order to prevent the loss of originality of the quantitative data on digital dental radiographs. Methods: After measuring the baseline mean grey values (MGVs) of a fixed region of interest on the alveolar bone and an aluminium step wedge, incremental brightness and contrast adjustments were performed on a digital periapical radiograph. The distribution of the data was analysed to investigate the significance of the changes on radiodensitometric data after incremental increase of brightness and contrast. Results: The original MGVs were easily retrieved after brightness adjustments; however, the contrast increase led to more complicated density changes. The originality of the data was saved up to 50 units of contrast increase, but further than this limit, significant radiodensitometric changes occurred. Conclusions: Contrast adjustments should be performed cautiously when making quantitative analyses on the digital radiographs. © 2005 The British Institute of Radiology.en_US
dc.identifier.doi10.1259/dmfr/85029529en_US
dc.identifier.endpage27en_US
dc.identifier.issn0250-832X
dc.identifier.issue1en_US
dc.identifier.pmid15709101en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage20en_US
dc.identifier.urihttps://doi.org/10.1259/dmfr/85029529
dc.identifier.urihttps://hdl.handle.net/11454/22231
dc.identifier.volume34en_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.relation.ispartofDentomaxillofacial Radiologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDental radiographyen_US
dc.subjectImage enhancementen_US
dc.subjectQuantitative analysisen_US
dc.titleThe effects of incremental brightness and contrast adjustments on radiographic data: A quantitative studyen_US
dc.typeArticleen_US

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