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. 20, 2012
Filed:
Jun. 28, 2010
Taira Ohara, Sumida-ku, JP;
Taira Ohara, Sumida-ku, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An image processing apparatus includes: a quadrangular or polygonal area setting unit that sets a quadrangular or polygonal area that surrounds a group of pixels that has predetermined characteristics for image data; a background setting unit that measures frequency distribution of tone values outside the quadrangular or polygonal area, measures a brightest tone value B in a margin range, which is a range of tone values in which the image data is distributed significantly, measures a most frequent value M in the margin range, and sets a background range, which is a range that includes the most frequent value M as a median point and further includes the brightest tone value B as one end of the range; a black edge statistics unit that measures frequency distribution of tone values of black edge inside the quadrangular or polygonal area and measures a greatest brightness value b in a black edge range, which is a range of tone values in which the black edge is distributed significantly.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile