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:
Jun. 21, 1994
Filed:
Nov. 01, 1993
Applicant:
Inventor:
Yasuharu Yonezawa, Kyoto, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358298 ; 346108 ;
Abstract
A normalizing curve (C.sub.rx) is generated by correcting a reference normalizing curve. The character of the normalized curve depends on dummy shadow and highlight points (A.sub.4, A.sub.3) as well as shadow and highlight points (A.sub.2 A.sub.1), which are determined as a function of the statistical distribution of densities on an original image. Color original image signals representative of the original image are converted through the normalizing curve to obtain converted color image signals in which a gray balance in the intermediate density region is corrected.
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Yonezawa, Yasuharu. (1994). Method of and an apparatus for generating a normalizing curve (U.S. Patent No. 5323241). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5323241
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