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.:

US 8045230 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 25, 2011

Filed:

Nov. 20, 2008
Applicant:

Taira Matsuoka, Saitama, JP;

Inventor:

Taira Matsuoka, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/403 (2006.01);
U.S. Cl.
CPC ...
Abstract

A halftone pixel detection unit detects pixels near center pixels of halftone pixels by comparing a density difference between a target pixel and each of neighboring pixels of image data with a predetermined threshold. A halftone pixel rearranging unit rearranges the halftone pixels detected by the halftone pixel detection unit relative to the target pixel and a halftone-area detection unit detects a halftone area based upon a pattern of the halftone pixels that is rearranged.


Find Patent Forward Citations

Matsuoka, Taira. (2011). Image processing apparatus, method, computer program product, and image forming apparatus, detecting a halftone area based on a rearranged halftone dot detection result (U.S. Patent No. 8045230). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8045230

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