发明授权
- 专利标题： Methods for marking images
- 专利标题（中）： 图像标记方法
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申请号： US12001764申请日： 2007-12-11
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公开(公告)号： US07711143B2公开(公告)日： 2010-05-04
- 发明人: Geoffrey B. Rhoads
- 申请人： Geoffrey B. Rhoads
- 申请人地址： US OR Beaverton
- 专利权人： Digimarc Corporation
- 当前专利权人： Digimarc Corporation
- 当前专利权人地址： US OR Beaverton
- 主分类号： H04K1/00
- IPC分类号： H04K1/00
摘要：
An image is marked by making slight changes to pixel values. These changes are essentially imperceptible on human scrutiny, but detectable by computer analysis. Such markings have applications in identifying ownership of images (including video), and also in device control (e.g., triggering a “do not copy” response in suitably configured hardware and software systems).
公开/授权文献
- US20080159588A1 Methods for marking images 公开/授权日：2008-07-03
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