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:
Nov. 11, 1997
Filed:
May. 01, 1996
Hiroki Kanno, Yokohama, JP;
Gururaj Rao, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A binarization circuit binarizes a pixel signal indicative of an input image, using binarizing processing capable of preserving a gradation of a photograph image. A run expansion circuit performs processing for expanding black pixels included in a binary image to obtain runs, and outputting a run expansion signal. A labelling circuit integrates connected runs into an integrated region (a label) by means of a circumscribing-rectangle extraction circuit, and obtains the position and the size of a rectangle which circumscribes each integrated region, thereby outputting the obtained data as circumscribing-rectangle data. A determination circuit determines whether the integrated region is a text region or a photograph (continuous) region from the size and the configuration of the circumscribing rectangle, and outputs a determination signal.