Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEvaluation of analog contrast enhancement and digital unsharp masking in low-contrast portal images.AuthorsWeiser, John C.; Gur, David; Gennari, Rose C.; Deutsch, MelvinPublicationMedical Physics, 1990, Vol 17, Issue 1, p122ISSN0094-2405Publication typeArticleDOI10.1118/1.596541