发明名称 |
Error diffusion halftone watermarking |
摘要 |
A watermarked halftone image is generated from a continuous tone image by performing error diffusion halftoning on the continuous tone image while adding a watermark to the halftone image during the halftoning. A location of the watermark in the halftone image may be based on prediction criteria. Error caused by adding the watermark may be diffused into the halftone image.
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申请公布号 |
US7660429(B2) |
申请公布日期 |
2010.02.09 |
申请号 |
US20040889327 |
申请日期 |
2004.07.11 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
SHAKED DORON;BAHARAV IZHAK |
分类号 |
G06K9/00;B42D15/00;G06T1/00;H04L9/32;H04N1/40 |
主分类号 |
G06K9/00 |
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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