title: Image processing of digital chest ionograms.
abstract: A number of image-processing techniques have been applied to a digital ionographic chest image in order to evaluate their possible effects on this type of image. In order to quantify any effect, a simulated lesion was superimposed on the image at a variety of locations representing different types of structural detail. Visualization of these lesions was evaluated by a number of observers both pre- and post-processing operations. The operations employed included grey-scale transformations, histogram operations, edge-enhancement and smoothing functions. The resulting effects of these operations on the visualization of the simulated lesions are discussed.
authors.affiliation: Department of Medical Biophysics, University of Manchester.
authors.forename: J R
authors.initials: JR
authors.lastname: Yarwood
authors.forename: B M
authors.initials: BM
authors.lastname: Moores
mesh_terms: D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008433:Mathematics; D011856:Radiographic Image Enhancement; D013902:Radiography, Thoracic