Adaptive digital watermarking algorithm under image quad-tree partition
An adaptive digital watermarking algorithm based on image quad-tree partition was proposed.The original image was approximated by various least square polynomial patches at multiple scales and was organized by a quad-tree structure.At the same time,this representation also reflected the texture info...
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| Format: | Article |
| Language: | English |
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POSTS&TELECOM PRESS Co., LTD
2017-12-01
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| Series: | 网络与信息安全学报 |
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| Online Access: | http://www.infocomm-journal.com/cjnis/CN/10.11959/j.issn.2096-109x.2017.00219 |