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:
Feb. 09, 1988
Filed:
Jun. 10, 1985
Masayuki Matsumoto, Ashigara-Kami, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A method of processing image or picture signals, including the steps of setting an n.times.n picture element matrix window (where n is an odd number) with respect to an image signal obtained by scanning an original picture; calculating a correction amount for pixel information at a center position of the window by a predetermined formula obtained on the basis of all of the pixel information within the window; subtracting pixel information of respective picture elements in the window by a suitable subtrahend; calculating the correction amount from added values obtained by adding all the pixel information within the window; converting the correction amount into a correcting value by multiplying the correction amount by a correction coefficient which also takes into consideration the effect of the subtraction on the correction amount; and correcting the pixel information by using the correcting value.