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:
Oct. 07, 2003
Filed:
Sep. 07, 1999
Keiko Kanamori, Kawasaki, JP;
Other;
Abstract
A histogram preparing portion prepares a density histogram based on input image data. A reference value calculating and correcting portion calculates a white reference value and a black reference value for adjusting density on the basis of the density histogram. A reference value determining portion corrects one of the white reference value and the black reference value such that the black reference value is necessarily greater than the white reference value. An automatic density adjusting portion adjust the density of the input image data with the corrected white or black reference value. Thus, automatic adjustment for removing a background or darkening a light letter can be performed suitably without failure, so that a clear image can be provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile