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:
Oct. 13, 1992
Filed:
Aug. 19, 1991
Yoram Levy, Palo Alto, CA (US);
David O Hodgson, San Mateo, CA (US);
Sony Corporation of America, Park Ridge, NJ (US);
Abstract
A method and system for digitally performing flare correction on digitized color film images. Each digitized image may include a red data stream, a blue data stream, and a green data stream collectively corresponding to a digitized color image (or frame). The system of the invention digitally generates flare correction signals, and employs the flare correction signals to compensate for undesired luminance variations from frame to frame within each color channel. In a preferred embodiment, the system also generates lift variation correction signals, and employs these signals to achieve a desired balance between the color channels. In one embodiment, the invention generates digitized color film images from a motion picture film, and digitally performs flare correction on the digitized images to correct for changes in the average luminance of consecutive images, and lift correction to achieve a desired balance between red, blue, and green color channels. Additional processing operations, such as color correction, are then performed digitally on the corrected digitized images.