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, 2010
Filed:
Oct. 30, 2006
Takeshi Yoshiura, Ayabe, JP;
Yukihiro Komatsu, Fukuchiyama, JP;
Takeshi Yoshiura, Ayabe, JP;
Yukihiro Komatsu, Fukuchiyama, JP;
Omron Corporation, Kyoto-Shi, JP;
Abstract
Focusing on pixels that constitute a color image sequentially, color differences Cx and Cy in X and Y directions are found using image data in a mask centering around the focal pixel. For the pixel in which the sum of the color differences is not less than a predetermined value, a color difference is found in each of directions Eand Ethat pass through the pixel and correspond to the first quadrant and the second quadrant in the X-Y coordinate system, and it is determined that the color change is generated in the direction having the larger color difference. Then, based on the determination result and the values of the color differences Cx and Cy, an angle (edge code) showing the direction of the color change is calculated.