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.

Date of Patent:
May. 19, 2015

Filed:

Feb. 07, 2013
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Toshiaki Kakutani, Shiojiri, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 15/00 (2006.01); G09G 3/20 (2006.01); G09G 3/34 (2006.01);
U.S. Cl.
CPC ...
G09G 3/2044 (2013.01); G06F 15/00 (2013.01); G09G 3/2051 (2013.01); G09G 3/2059 (2013.01); G09G 3/344 (2013.01); G09G 2300/08 (2013.01);
Abstract

An image processing device includes a processing device that performs a color reduction processing of converting data of a-levels of gray indicative of an image to be displayed in a display area including a plurality of pixels arranged along a first direction and a second direction into data of b-levels of gray (b<a) and, upon receiving an input of data for reducing the number of pixels with a first gray level in the display area to 50%, generates a result in which the arrangement of the pixels with the first gray level has blue noise characteristics in the display area, and the maximum value of the rate of occurrence of specific patterns in the display area is less than 7.0%.


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