Image enhancement for radiographs utilizing filtering, gray scale transformation and Sobel gradient operator

Ronald A. Wahler, Frank Shih

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations

Abstract

A model that combines the Sobel operator with prefiltering and gray-scale transformation to produce a radiograph with better contrast and detail is presented. The prefiltering utilizes the Gaussian convolution mask for high-frequency noise suppression. A gray-scale transformation technique is used to increase the slope between the radiograph image and the background. This process produces better input for the final enhancement. The final processing makes use of the Sobel gradient operator.

Original languageEnglish (US)
Pages (from-to)618-619
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume11 pt 2
StatePublished - Dec 1 1989
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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