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:
May. 25, 2004
Filed:
Feb. 01, 2000
Applicant:
Inventor:
Cornelis A. M. Jaspers, Eindhoven, NL;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 ;
U.S. Cl.
CPC ...
G06K 9/00 ;
Abstract
In a method of histogram equalization of an image signal (Y), a histogram of the image signal (Y) is determined (HC), the image signal (Y) is processed (HP) in dependence upon the histogram to obtain a modified signal (Ymod), and the modified signal (Ymod) is enhanced (E) where said modified signal (Ymod) falls below said image signal (Y). Preferably, the enhancement (E) is color saturation (RGBsat) dependent.