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:
Dec. 29, 2009
Filed:
May. 17, 2006
Jiang Duan, Norwich, GB;
Marco Bressan, LaTronche, FR;
Christopher R. Dance, Meylan, FR;
Guoping Qiu, Belper, GB;
Jiang Duan, Norwich, GB;
Marco Bressan, LaTronche, FR;
Christopher R. Dance, Meylan, FR;
Guoping Qiu, Belper, GB;
Xerox Corporation, Norwalk, CT (US);
Abstract
A method of automatic mapping of image data includes representing image data for an image as luminance values, determining a key value as a function of an average luminance value of the image and of minimum and maximum luminance values of the image, generating offset-adjusted luminance values including applying an offset to each of the luminance values, the offset being a function of the determined key value, and computing a tone reproduction curve for at least a region of the image which includes applying a mapping function to the offset-adjusted luminance values.