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. 29, 2004
Filed:
Apr. 07, 2000
Jian Fan, Cupertino, CA (US);
Charles Chi Jia, San Diego, CA (US);
Anne-Marie Woodson, Lemon Grove, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A method analyzes an image to be scanned and analyzes at least part of the image pixel-by-pixel. During or after a preview scan, a characteristic is assigned to a plurality of pixels in the image and pixels are grouped according to similar characteristics. A representation of a least one of the characteristics corresponding to a group of pixels is communicated to the scanner. For example, the pixels may be analyzed to determining if the pixel is black or white. The pixels may also be analyzed to determining if a pixel is on an edge between black and white. Black pixels that are adjacent each other can be grouped together, and white pixels that are adjacent each other can also be grouped together. A region of an image with a relatively high number of black and white groups can be characterized as black and white text only. That characterization can then be used to properly set a scanner, for example, without user intervention, so that the final scan of the image can be done at 300 dpi with a low bit depth.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile