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:
Jun. 30, 1998
Filed:
Dec. 11, 1996
Applicant:
Inventor:
James M Kasson, Menlo Park, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345153 ; 345147 ;
Abstract
Midtone correction of RGB pixel values is provided, without changes in chromaticity, by multiplying each color component of a linear RGB representation by a single value. The single value corresponds to an adjustment of the original luminance of the pixel, resulting in no change to the chromaticity of the pixel.
Kasson, James. (1998). Method and apparatus for tone correction of a digital color image with (U.S. Patent No. 5774112). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5774112
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