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:
Jan. 05, 2010

Filed:

Dec. 22, 2005
Applicant:

Russell M. Reid, Palo Alto, CA (US);

Inventor:

Russell M. Reid, Palo Alto, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

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

An improved sharpening technique sharpens an image using diffusion rather than a Gaussian blur in the smearing phase. After an appropriate radius or number of passes is determined for the pixels of an image, a diffusive process is applied to the image in the smearing phase to generate a blurred image. The values of each pixel in the original image are differenced with the values of each corresponding pixel in the blurred image. The difference may be weighted by input from a user. The resulting value is added to the original image and a sharpened version of the original image is created.


Find Patent Forward Citations

Reid, Russell. (2010). Image sharpening using diffusion (U.S. Patent No. 7643698). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7643698

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

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