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:
Nov. 24, 2009
Filed:
May. 20, 2005
Burkhard Hahn, Jena, DE;
Burkhard Hahn, Jena, DE;
Jenoptik Laser, Optik, Systeme GmbH, Jena, DE;
Abstract
In a method for reducing color moiré in digital images, the object is to improve the suppression of color moiré in such a way that effects on edge areas and fine structures are further reduced in that low-frequency beats causing color moiré are detected and attenuated in such a way that correction is carried out only for two-dimensionally extensive areas and the edge areas and fine structures remain excluded to a great extent. A comparison of bandpass energies between the luminance channel and chrominance channels serves as a marking criterion in order initially to determine pixels in which color moiré is present and then to carry out a frequency-selective energy reduction in the chrominance channels at middle frequencies for suppressing the long-wave color moiré.