Digital image processing

Winnie Y. Lo, Sarah M. Puchalski

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Image processing or digital image manipulation is one of the greatest advantages of digital radiography (DR). Preprocessing depends on the modality and corrects for system irregularities such as differential light detection efficiency, dead pixels, or dark noise. Processing is manipulation of the raw data just after acquisition. It is generally proprietary and specific to the DR vendor but encompasses manipulations such as unsharp mask filtering within two or more spatial frequency bands, histogram sliding and stretching, and gray scale rendition or lookup table application. These processing steps have a profound effect on the final appearance of the radiograph, but they can also lead to artifacts unique to digital systems. Postprocessing refers to manipulation of the final appearance of the radiograph by the end-user and does not involve alteration of the raw data.

Original languageEnglish (US)
JournalVeterinary Radiology and Ultrasound
Volume49
Issue numberSUPPL. 1
DOIs
StatePublished - Jan 2008

Fingerprint

Radiographic Image Enhancement
digital images
radiography
image analysis
Masks
Artifacts
Noise
Light

Keywords

  • Computed radiography
  • Digital radiography
  • Radiographic image processing
  • Unsharp mask filter

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Digital image processing. / Lo, Winnie Y.; Puchalski, Sarah M.

In: Veterinary Radiology and Ultrasound, Vol. 49, No. SUPPL. 1, 01.2008.

Research output: Contribution to journalArticle

Lo, Winnie Y. ; Puchalski, Sarah M. / Digital image processing. In: Veterinary Radiology and Ultrasound. 2008 ; Vol. 49, No. SUPPL. 1.
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