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.:
Date of Patent:
Jul. 27, 1993
Filed:
Oct. 15, 1991
Kazumasa Koike, Atsugi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image processor converts a resolution of an image from an inferior resolution to a superior resolution and performs an smoothing process for smoothing jagged edges of an image by using a 3*3 pixel matrix. The center of the 3*3 pixel matrix is a target pixel which is to be converted from the inferior resolution to the superior resolution. The image processor according to the present invention may use a first row of the 3*3 pixel matrix which has been converted into the superior resolution, so that the target pixel can be converted more accurately. In addition, the image processor may use four color patterns of the 3*3 pixel matrix so that the jagged edge of the image can be smoothed in a horizontal direction. Moreover, the image processor may use different color patterns of the 3*3 pixel matrix when the image processor converts the resolution of the image from the inferior resolution to an intermediate resolution and then converts the resolution of the image from the intermediate resolution to the superior resolution, so that errors caused by the conversion never accumulate.