| 发明名称 |
WATERMARK DECODING VIA SPECTRAL ANALYSIS OF PIXEL SPACING |
| 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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| 申请公布号 |
US2012148087(A1) |
申请公布日期 |
2012.06.14 |
| 申请号 |
US20100966244 |
申请日期 |
2010.12.13 |
| 申请人 |
XU BEILEI;SHEFLIN JOSEPH C.;WANG SHEN-GE;LOCE ROBERT P.;LESTRANGE JACK T.;XEROX CORPORATION |
发明人 |
XU BEILEI;SHEFLIN JOSEPH C.;WANG SHEN-GE;LOCE ROBERT P.;LESTRANGE JACK T. |
| 分类号 |
G06K9/78 |
主分类号 |
G06K9/78 |
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