title: -Overexposed film--underexposed film-.
abstract: Physics of the radiographic exposition are presented, including those of the radiating image, contrast, sensitometry. Based on these principles, the modifications which allow correcting over- and underexposition of the images are explained.
authors.affiliation: Service de Radiologie Ostéo-articulaire, Hôpital Lariboisière, Paris.
authors.forename: C
authors.initials: C
authors.lastname: Patrux
mesh_terms: D015502:Absorptiometry, Photon; D003287:Contrast Media; D006283:Health Physics; D006801:Humans; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement / Q000379:methods*; D013997:Time Factors; D014962:X-Ray Film; D014963:X-Ray Intensifying Screens; D014965:X-Rays
chemical_list: D003287:Contrast Media