发明授权
- 专利标题: System and method for creating a data-bearing image
- 专利标题(中): 用于创建数据承载图像的系统和方法
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申请号: US12563432申请日: 2009-09-21
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公开(公告)号: US08456699B2公开(公告)日: 2013-06-04
- 发明人: Robert Alan Ulichney , Steven J. Simske , Matthew D. Gaubatz
- 申请人: Robert Alan Ulichney , Steven J. Simske , Matthew D. Gaubatz
- 申请人地址: US TX Houston
- 专利权人: Hewlett-Packard Development Company, L.P.
- 当前专利权人: Hewlett-Packard Development Company, L.P.
- 当前专利权人地址: US TX Houston
- 主分类号: G06K15/00
- IPC分类号: G06K15/00 ; H04N1/40
摘要:
A system for creating a data-bearing image can include a reference image generator configured to apply a clustered-dot halftone screen to a continuous-tone image. The resulting reference halftone image includes carrier cells in which a pixel cluster can be shifted to at least two shift positions in the carrier cell. The system also includes a payload encoder configured to segment the data payload and encode data segments into one of the carrier cells by shifting the cluster to one of the shift positions. The system also includes an output device configured to output the resulting data-bearing halftone image.
公开/授权文献
- US20110069328A1 SYSTEM AND METHOD FOR CREATING A DATA-BEARING IMAGE 公开/授权日:2011-03-24