title: A modified blurred undersubtraction method (BUS) and its applications.
abstract: A modification of a previously described method of enhancing radiographs for photography is presented. The mask to be used during photography is produced by exposing a subtraction film with the radiograph and two layers of diffusing glass in between it and the x-ray copier. Various applications for producing other types of masks are also discussed.
mesh_terms: D006801:Humans; D010781:Photography / Q000379:methods*; D011856:Radiographic Image Enhancement; D012886:Skull / Q000000981:diagnostic imaging; D013131:Spine / Q000000981:diagnostic imaging