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:
Dec. 01, 2020
Filed:
Dec. 18, 2019
Dan Dudas, Timisoara, RO;
Walter F. Kailey, Frederick, CO (US);
Dan Dudas, Timisoara, RO;
Walter F. Kailey, Frederick, CO (US);
Ricoh Company, Ltd., Tokyo, JP;
Abstract
Systems, methods, software for image filtering. In one embodiment, a system receives a raster image comprising an array of pixels, divides the raster image into regions of pixels, and identifies a region size limit for the regions. The system performs image filtering on each region with an image filter that operates based on a filter parameter that is adjustable between a first value where minimal filtering is performed and a second value where maximum filtering is performed. For the image filtering, the system measures a compressed region size of the region when compressed with a run-length encoding scheme, computes the filter parameter for the region based on the compressed region size and the region size limit, and applies the image filter on the region based on the filter parameter computed for the region to generate a filtered region having increased redundant patterns of pixel values.