发明名称 |
Human perceptual model applied to rendering of watermarked signals |
摘要 |
A digital watermarking system uses a model of a rendering device to take into account the impact of the rendering device on visual or auditory quality of the watermarked signal. For visual content, a reference image and watermarked image are passed through the model and then supplied to a visual quality metric that assesses the visibility of the watermark. The digital watermark embedding is adjusted iteratively with each pass through this process to produce a watermarked signal that has the desired visual quality.
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申请公布号 |
US7352878(B2) |
申请公布日期 |
2008.04.01 |
申请号 |
US20040826970 |
申请日期 |
2004.04.15 |
申请人 |
DIGIMARC CORPORATION |
发明人 |
REED ALASTAIR M.;ROGERS ELIOT |
分类号 |
G06K9/00;G06T1/00;H04N1/32 |
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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