发明名称 |
Watermarking image block division method and device for western language watermarking processing |
摘要 |
The application provides a method for partitioning a watermark image with western language characters, comprising: partitioning a western language characters image along rows and columns to form a plurality of character image blocks; identifying valid character image blocks from the formed character image blocks; counting sizes of the valid character image blocks to determine if the image corresponds to a document with a large font size or a document with a small font size; dividing words in the image into a plurality of groups, wherein each divided group in the document with large font size has different numbers of words from that with small font size; and dividing equally the divided word groups into multiple portions corresponding to watermark image blocks. The application further provides a device for partitioning a watermark image with western language characters. The operability of watermark embedding process can be ensured through the above technical solution. |
申请公布号 |
US9111341(B2) |
申请公布日期 |
2015.08.18 |
申请号 |
US201113997258 |
申请日期 |
2011.12.23 |
申请人 |
Peking University Founder Group Co., Ltd.;Peking University;Beijing Founder Electronics Co., Ltd.;Peking Universit Founder R & D Center |
发明人 |
Wang Gaoyang;Qi Wenfa;Wang Lidong;Yang Bin |
分类号 |
G06K9/00;G06T1/00;G06K9/34 |
主分类号 |
G06K9/00 |
代理机构 |
Lathrop & Gage LLP |
代理人 |
Lathrop & Gage LLP |
主权项 |
1. A method for partitioning a watermark image with western language characters, comprising:
partitioning a western language characters image along rows and columns to form a plurality of character image blocks; identifying valid character image blocks from the formed character image blocks; counting sizes of the valid character image blocks to determine if the image corresponds to a document with a large font size or a small font size; dividing words in the image into a plurality of groups, wherein each divided group in the document with large font size has different numbers of words from that with small font size; and dividing equally the divided word groups into multiple portions corresponding to watermark image blocks. |
地址 |
Beijing CN |