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:
Jul. 27, 2010
Filed:
May. 03, 2005
Hiroyuki Takakura, Kawasaki, JP;
Hirotaka Chiba, Kawasaki, JP;
Nobuyasu Yamaguchi, Kawasaki, JP;
Tsugio Noda, Kawasaki, JP;
Hiroyuki Takakura, Kawasaki, JP;
Hirotaka Chiba, Kawasaki, JP;
Nobuyasu Yamaguchi, Kawasaki, JP;
Tsugio Noda, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
When it is determined whether the color of each cell of an image is black or white from the gradation value of each cell, the determination is made by comparison of the gradation level of the cell with a threshold if the gradation level is sufficiently close to that of black or white. In contrast, if the gradation value of the cell is within a gray zone, the color of the cell is determined from the colors of the cells adjacent to the cell of interest. That is, if the gradation value of the cell is gray and the colors of the adjacent cells are all black, the color of the cell is determined to be white; and conversely if the colors of all the adjacent cells are white, the color of the cell is determined to be black.