PHOTOGRAPHIC PROCESS FOR THE PRODUCTION OF PICTURES OF INCREASED CONTRAST

S P E C I F I C A T I O N "Photographic Process for the Production of Pictures of Increased Contrast" ABSTRACT OF THE DISCLOSURE In order to increase the contrast of a picture such as an X-ray picture over a selected range of densities, a negative transparency of the original picture of se...

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1. Verfasser:	LOHSE, KARL-HEINZ
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY DIAGNOSIS ELECTROGRAPHY HOLOGRAPHY HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS SURGERY
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creator	LOHSE, KARL-HEINZ
description	S P E C I F I C A T I O N "Photographic Process for the Production of Pictures of Increased Contrast" ABSTRACT OF THE DISCLOSURE In order to increase the contrast of a picture such as an X-ray picture over a selected range of densities, a negative transparency of the original picture of selected density value at one end of the selected range and a positive transparency of the original picture at the other end of the selected range are superimposed to form a transparency sandwich and the image produced by illuminating such a transparency sandwich is photographed or displayed. A number of selected density ranges may be superimposed on a single display by making a respective transparency sandwich for each range in a different colour and superimposing such transparency sandwiches. - 1 -
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subjects	AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY DIAGNOSIS ELECTROGRAPHY HOLOGRAPHY HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS SURGERY
title	PHOTOGRAPHIC PROCESS FOR THE PRODUCTION OF PICTURES OF INCREASED CONTRAST
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