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 7333671 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 19, 2008

Filed:

Sep. 30, 2003
Applicant:

Hui-jan Chien, Taipei, TW;

Inventor:

Hui-Jan Chien, Taipei, TW;

Assignee:

BenQ Corporation, Gueishan, Tao-Yuan Hsien, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for processing an image to increase sharpness of the image without changing hue characteristics. The method includes performing a transformation process to transform an original image signal into CIE XYZ colorimetric channels, forming a luminance channel Y, applying a filter on the luminance channel Y to obtain a processed luminance channel Y″, computing processed colorimetric channels X″ and Z″ based on the processed luminance channel Y″, and performing an inverse transformation process to transform the processed colorimetric channels X″Y″Z″ into a processed image signal.


Find Patent Forward Citations

Chien, Hui-Jan. (2008). Image processing method to improve image sharpness (U.S. Patent No. 7333671). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7333671

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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