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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 4868884 B1

PDFFull Text
Date of Patent:
Sep. 19, 1989

Filed:

Dec. 21, 1987

Image extraction mask

Applicant:
Inventors:

Ryuichi Miyazaki, Kameoka, JP;

Yosuke Kakihara, Otsu, JP;

Yasushi Doi, Kyoto, JP;

Hirokazu Takizawa, Kyoto, JP;

Assignee:

Dainippon Screen Mfg. Co., Ltd., Kyoto, JP;

Attorney:

Lowe, Price, LeBlanc, Becker & Shur

Primary Examiner:

Leo H Boudreau

Assistant Examiner:

Jose L Couso

Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382 30 ; 382 22 ; 382 32 ; 382 50 ;
Abstract

By comparing the density values of the pixels of a specific color separation image of an original comprising an objective image stored as data in an image memory with a threshold, determining a border line between the area of which density value is higher than the threshold and the area of which density value is lower than the threshold as the conclusive outline of the objective image, and by applying to both the areas distinct data respectively, an image extraction mask data is obtained to be stored into a mask memory.

Find Patent Forward Citations

Miyazaki, Ryuichi. (1989). Image extraction mask (U.S. Patent No. 4868884). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4868884

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

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