The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2001
Filed:
Jan. 29, 1997
Nikolaus Schweyer, München, DE;
Karl Dzida, Feldkirchen-Westerham, DE;
Deutsche Aerospace AG, Munich, DE;
Abstract
The process according to the invention is used for influencing the quality of images furnished by an electronic imaging system. For this purpose, image segments are defined which surround individual image points; from the image point signals of the image points situated therein, characteristic brightness and contrast values are calculated and are assigned to the individual image points. Finally, these characteristic values are used to modify the background brightness and the contrast fraction of the image point signals. According to the invention, a subset of image points are selected as supporting points and the pertaining image segments are defined in such a manner that at least areas of the image which are of interest are completely covered. By means of a two-dimensional interpolation, corresponding characteristic values each assigned to the remaining image points can be obtained from the characteristic values determined for the supporting points. The latter can, in turn, be used to modify the background brightness as well as the contrast fraction (by amplification) of the image points. It is also possible to use the characteristic values for the collective modification of all image point signals of the respective image segment.