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:
Jul. 24, 2012
Filed:
Oct. 13, 2010
Shinya Fujiwara, Saitama, JP;
Tetsuro Ashida, Saitama, JP;
Seiji Tanaka, Saitama, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
Whether purple fringing (PF) has occurred is determined for every pixel of interest P(i,j) (step). The RGB ratio of a purple-fringed pixel P(i,j) at which PF has been determined and the RGB ratio of a PF convergence pixel P(m,n) spaced N pixels away from the purple-fringed pixel P(i,j) within a zone in the proximity of the purple-fringed pixel P(i,j) are calculated (steps). A correction coefficient Rev (i,j) that causes the RGB ratio of the purple-fringed pixel P(i,j) to approach the RGB ratio of the PF convergence pixel P(m,n) is calculated (step). The purple-fringed pixel P(i,j) is color-corrected using the correction coefficient Rev (i,j) calculated. Purple fringing is made inconspicuous by changing the color of image portions at which purple fringing has occurred.