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. 03, 2011
Filed:
Jun. 02, 2006
Applicants:
Peter Bracke, Drongen, BE;
Eddy Debaere, Deinze Asten, BE;
Joris Van Garsse, Mullem, BE;
Inventors:
Assignee:
Agfa Graphics NV, Mortsel, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/60 (2006.01); G03F 3/08 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image processing method includes a step of converting halftoned pixels of an image to be printed represented at a first lower tonal resolution into pixels represented at a second higher tonal resolution. Image processing is used on the pixels having a higher tonal resolution to reduce image quality artifacts when the pixels are printed at the first lower tonal resolution. In a preferred embodiment, the image processing includes error diffusion of a sigma delta modulation.