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:
Jan. 21, 1997
Filed:
Apr. 21, 1995
Bart Tytgat, Grimbergen, BE;
Paul Dierckx, Brussels, BE;
Agfa-Gevaert N.V., Mortsel, BE;
Abstract
A color matching method is described for matching the appearance of an image on a second color imaging system to an image on a first color imaging system. The method is based on the calibration of both imaging systems, preferentially by analytical functions having specific continuity requirements, approximating measured points rather than interpolating them. Due to different gamuts of the two imaging systems, a gamut mapping must be performed. The mappings are preferentially linear for lightness and saturation, and preferentially keep the hue constant. For greyish colors, the gamut mapping is preferentially non-linear, to obtain maximum visual perception of differences in the image.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile