发明名称 |
DIGITAL WATERMARKS |
摘要 |
A first instance of a digital watermark may be embedded into an image. The first instance may encode information. A second instance of the digital watermark may be embedded into the image. The second instance may encode the information of the first instance. The second instance may be a sized differently or may be larger than the first instance. |
申请公布号 |
WO2015047290(A1) |
申请公布日期 |
2015.04.02 |
申请号 |
WO2013US62150 |
申请日期 |
2013.09.27 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
HOLSTUN, CLAYTON L. |
分类号 |
H04N1/387;G06T3/00;H04N21/8358 |
主分类号 |
H04N1/387 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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