发明授权
- 专利标题: Watermark decoding via spectral analysis of pixel spacing
- 专利标题(中): 通过像素间隔的频谱分析进行水印解码
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申请号: US12966244申请日: 2010-12-13
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公开(公告)号: US08451501B2公开(公告)日: 2013-05-28
- 发明人: Beilei Xu , Joseph C. Sheflin , Shen-Ge Wang , Robert P. Loce , Jack T. LeStrange
- 申请人: Beilei Xu , Joseph C. Sheflin , Shen-Ge Wang , Robert P. Loce , Jack T. LeStrange
- 申请人地址: US CT Norwalk
- 专利权人: Xerox Corporation
- 当前专利权人: Xerox Corporation
- 当前专利权人地址: US CT Norwalk
- 代理机构: Fay Sharpe LLP
- 主分类号: H04N1/405
- IPC分类号: H04N1/405 ; H04N1/40 ; G06K9/00 ; G06K9/46
摘要:
Provided are methods, apparatus and systems related to watermark decoding via spectral analysis of an image. According to one exemplary method, spectral analysis is performed to decode a watermark within an image, where the pixel spacing associated with the image was modulated to encode the watermark.
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