发明授权
- 专利标题: Method of authenticating security marker
- 专利标题(中): 验证安全标记的方法
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申请号: US13094945申请日: 2011-04-27
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公开(公告)号: US08750621B2公开(公告)日: 2014-06-10
- 发明人: Thomas J. Widzinski , Erwin L. Allmann , Thomas D. Pawlik , Judith A. Bose , Gary M. Spinelli , Myra T. Olm
- 申请人: Thomas J. Widzinski , Erwin L. Allmann , Thomas D. Pawlik , Judith A. Bose , Gary M. Spinelli , Myra T. Olm
- 申请人地址: US NY Rochester
- 专利权人: Eastman Kodak Company
- 当前专利权人: Eastman Kodak Company
- 当前专利权人地址: US NY Rochester
- 代理商 Nelson Adrian Blish
- 主分类号: G06K9/46
- IPC分类号: G06K9/46
摘要:
A method for authenticating security markers includes capturing an image of a region of interest on a product with a camera; storing image data in a two-dimensional array on a microprocessor; counting a number of pixels at or above a predetermined brightness level in the image data with the microprocessor to determine a first score; establishing an area within the image; counting a number of pixels within the area to determine a second score; calculating a ratio of the second score to the first score; and if the ratio is above a predetermined threshold the security marker is authenticated.
公开/授权文献
- US20120275640A1 METHOD OF AUTHENTICATING SECURITY MARKER 公开/授权日:2012-11-01