Image enhancement of chest radiographs using local statistical information

Abstract

The use of statistically based image enhancement techniques applied to chest radiographs has been investigated. These techniques include Unsharp Masking, Statistical Differencing and Median Filtering. Their properties are studied and similarities highlighted. In addition, the artefacts produced in the processing are considered, along with techniques for reducing their effects. The application to radiographic images of the chest is described, with consideration of computational requirements. © 1982 SPIE.