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:
Aug. 07, 2001
Filed:
Dec. 28, 1998
STMicroelectronics S.r.l., , IT;
Abstract
A digital image color correction device and method employing fuzzy logic, for correcting a facial tone image portion of a digital video image is provided. The device is a pixel fuzzifier unit (,) receiving in input a stream of pixels belonging to a sequence of correlated frames of a digital video image and computing a multilevel value representing a membership of each pixel to a skin color class; a global parameter estimator (,) receiving in input each of said pixel and the relative membership value, and computing a first and a second parameter which define the characteristics of a portion of said image that belongs to said skin color class; a processing unit (,) connected downstream to said global parameter estimator and to said pixel fuzzifier unit and adapted to correct each of the pixels of said portion of the image that belongs to said skin color class, according to said first global parameter (,), to obtain corrected pixels; and a processing switch (,) for outputting said pixels or said corrected pixels according to said second global parameter (,).