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Photographic techniques for retrieving echocardiographic images from substandard recordings
Author(s) -
Silverman Norman H.,
Bunker William E.
Publication year - 1978
Publication title -
journal of clinical ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.272
H-Index - 61
eISSN - 1097-0096
pISSN - 0091-2751
DOI - 10.1002/jcu.1870060519
Subject(s) - medicine , contrast (vision) , photography , white (mutation) , high contrast , gray (unit) , artificial intelligence , computer vision , nuclear medicine , optics , computer science , visual arts , art , biochemistry , chemistry , physics , gene
A technique is described for photographing damaged echocardiograms with a lithographic film. This is a high contrast film that reproduces either black or white, without intermediate gray tones, depending on exposure time. Standard photographic manipulations were used to improve the quality of the final print.