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, 1998

Filed:

Mar. 18, 1996
Applicant:
Inventors:

Hiroshi Sekine, Kanagawa, JP;

Yoshihiro Terada, Kanagawa, JP;

Toshiya Koyama, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382300 ; 348428 ; 348451 ;
Abstract

An image resolution conversion method converting an image of a first resolution represented by multivalued digital data into an image of a second resolution by interpolation, comprises the steps of assigning a block defined by a plurality of pre-conversion pixels of the first resolution image to each post-conversion pixel, performing edge detection in the block based on data for each pixel of the block, and performing resolution conversion by a first interpolation method when at least the result of the edge detection satisfies predetermined conditions, and performing resolution conversion by a second interpolation method when the result of the edge detection does not satisfy the predetermined conditions.


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