CN102567938B - 用于西文水印处理的水印图像分块方法和装置 - Google Patents
用于西文水印处理的水印图像分块方法和装置 Download PDFInfo
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- CN102567938B CN102567938B CN201010620424.XA CN201010620424A CN102567938B CN 102567938 B CN102567938 B CN 102567938B CN 201010620424 A CN201010620424 A CN 201010620424A CN 102567938 B CN102567938 B CN 102567938B
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Images
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0021—Image watermarking
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/148—Segmentation of character regions
- G06V30/158—Segmentation of character regions using character size, text spacings or pitch estimation
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2201/00—General purpose image data processing
- G06T2201/005—Image watermarking
- G06T2201/0051—Embedding of the watermark in the spatial domain
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2201/00—General purpose image data processing
- G06T2201/005—Image watermarking
- G06T2201/0062—Embedding of the watermark in text images, e.g. watermarking text documents using letter skew, letter distance or row distance
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06T2201/00—General purpose image data processing
- G06T2201/005—Image watermarking
- G06T2201/0083—Image watermarking whereby only watermarked image required at decoder, e.g. source-based, blind, oblivious
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
Abstract
Description
Claims (9)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010620424.XA CN102567938B (zh) | 2010-12-23 | 2010-12-23 | 用于西文水印处理的水印图像分块方法和装置 |
JP2013545033A JP5669957B2 (ja) | 2010-12-23 | 2011-12-23 | 西洋語の透かし処理をするための透かし画像の分割方法と装置 |
US13/997,258 US9111341B2 (en) | 2010-12-23 | 2011-12-23 | Watermarking image block division method and device for western language watermarking processing |
EP11852045.1A EP2657902B1 (en) | 2010-12-23 | 2011-12-23 | Watermarking image block division method and device for western language watermarking processing |
PCT/CN2011/084577 WO2012083882A1 (zh) | 2010-12-23 | 2011-12-23 | 用于西文水印处理的水印图像分块方法和装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010620424.XA CN102567938B (zh) | 2010-12-23 | 2010-12-23 | 用于西文水印处理的水印图像分块方法和装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102567938A CN102567938A (zh) | 2012-07-11 |
CN102567938B true CN102567938B (zh) | 2014-05-14 |
Family
ID=46313189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201010620424.XA Expired - Fee Related CN102567938B (zh) | 2010-12-23 | 2010-12-23 | 用于西文水印处理的水印图像分块方法和装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9111341B2 (zh) |
EP (1) | EP2657902B1 (zh) |
JP (1) | JP5669957B2 (zh) |
CN (1) | CN102567938B (zh) |
WO (1) | WO2012083882A1 (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102938841B (zh) * | 2012-11-30 | 2015-02-11 | 西安空间无线电技术研究所 | 在承载图像中隐藏信息、图像质量评价及信息传输方法 |
CN105224833B (zh) * | 2014-06-30 | 2018-03-30 | 北京金山安全软件有限公司 | 利用数字水印识别应用程序是否是正版的方法及系统 |
CN105631486A (zh) * | 2014-10-27 | 2016-06-01 | 深圳Tcl数字技术有限公司 | 图像文字识别方法及装置 |
TWI643159B (zh) * | 2017-11-16 | 2018-12-01 | 國立臺北科技大學 | 基於奇偶特性隱寫資料於區塊截斷編碼影像的方法、影像壓縮裝置及電腦可讀取的記錄媒體 |
GB2572386B (en) * | 2018-03-28 | 2021-05-19 | Canon Europa Nv | An image processing system and an image processing method |
CN108830772A (zh) * | 2018-05-25 | 2018-11-16 | 珠海奔图电子有限公司 | 水印编码转换方法及装置 |
US10939013B2 (en) | 2018-09-07 | 2021-03-02 | International Business Machines Corporation | Encoding information within features associated with a document |
WO2021056183A1 (en) * | 2019-09-24 | 2021-04-01 | Citrix Systems, Inc. | Watermarks for text content |
CN113450243A (zh) * | 2020-03-24 | 2021-09-28 | 北京四维图新科技股份有限公司 | 水印添加方法和设备 |
CN114596188A (zh) * | 2022-02-22 | 2022-06-07 | 北京百度网讯科技有限公司 | 水印检测方法、模型训练方法、装置及电子设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1700205A (zh) * | 2005-06-24 | 2005-11-23 | 清华大学 | 一种在英文文本中嵌入和提取水印的方法 |
CN101169779A (zh) * | 2007-11-30 | 2008-04-30 | 清华大学 | 在英文文本中嵌入和提取频域水印的方法 |
CN101251892A (zh) * | 2008-03-07 | 2008-08-27 | 北大方正集团有限公司 | 一种字符切分方法和装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5848191A (en) * | 1995-12-14 | 1998-12-08 | Xerox Corporation | Automatic method of generating thematic summaries from a document image without performing character recognition |
JP3373811B2 (ja) * | 1999-08-06 | 2003-02-04 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 白黒2値文書画像への透かし情報埋め込み・検出方法及びその装置 |
JP2003230001A (ja) * | 2002-02-01 | 2003-08-15 | Canon Inc | 文書用電子透かし埋め込み装置及び文書用電子透かし抽出装置並びにそれらの制御方法 |
US8127137B2 (en) * | 2004-03-18 | 2012-02-28 | Digimarc Corporation | Watermark payload encryption for media including multiple watermarks |
JP4298588B2 (ja) * | 2004-05-31 | 2009-07-22 | 株式会社リコー | 情報検出装置および情報検出方法 |
US7644281B2 (en) * | 2004-09-27 | 2010-01-05 | Universite De Geneve | Character and vector graphics watermark for structured electronic documents security |
CN1897522B (zh) * | 2005-07-15 | 2010-05-05 | 国际商业机器公司 | 水印嵌入和/或检测的方法、装置及系统 |
JP2008098946A (ja) * | 2006-10-11 | 2008-04-24 | Canon Inc | 画像処理装置及びその制御方法 |
JP2009141525A (ja) * | 2007-12-04 | 2009-06-25 | Canon Inc | 画像処理装置及び画像処理方法 |
JP2010124451A (ja) * | 2008-10-24 | 2010-06-03 | Canon Inc | 文書処理装置および文書処理方法 |
-
2010
- 2010-12-23 CN CN201010620424.XA patent/CN102567938B/zh not_active Expired - Fee Related
-
2011
- 2011-12-23 EP EP11852045.1A patent/EP2657902B1/en not_active Not-in-force
- 2011-12-23 US US13/997,258 patent/US9111341B2/en not_active Expired - Fee Related
- 2011-12-23 JP JP2013545033A patent/JP5669957B2/ja not_active Expired - Fee Related
- 2011-12-23 WO PCT/CN2011/084577 patent/WO2012083882A1/zh active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1700205A (zh) * | 2005-06-24 | 2005-11-23 | 清华大学 | 一种在英文文本中嵌入和提取水印的方法 |
CN101169779A (zh) * | 2007-11-30 | 2008-04-30 | 清华大学 | 在英文文本中嵌入和提取频域水印的方法 |
CN101251892A (zh) * | 2008-03-07 | 2008-08-27 | 北大方正集团有限公司 | 一种字符切分方法和装置 |
Also Published As
Publication number | Publication date |
---|---|
EP2657902B1 (en) | 2017-03-08 |
JP5669957B2 (ja) | 2015-02-18 |
EP2657902A1 (en) | 2013-10-30 |
US20140003649A1 (en) | 2014-01-02 |
US9111341B2 (en) | 2015-08-18 |
WO2012083882A1 (zh) | 2012-06-28 |
CN102567938A (zh) | 2012-07-11 |
JP2014500688A (ja) | 2014-01-09 |
EP2657902A4 (en) | 2013-12-25 |
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Owner name: BEIJING UNIV. FOUNDER INFORMATION INDUSTRY HOLDING Free format text: FORMER OWNER: BEIJING UNIV. BEIDA FANGZHENG ELECTRONICS CO., LTD., BEIJING Effective date: 20130911 |
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Address after: 100871, Beijing, Haidian District Cheng Fu Road 298, founder building, 9 floor Patentee after: PEKING UNIVERSITY FOUNDER GROUP Co.,Ltd. Patentee after: Peking University Patentee after: PKU FOUNDER INFORMATION INDUSTRY GROUP CO.,LTD. Patentee after: BEIJING FOUNDER ELECTRONICS Co.,Ltd. Address before: 100871, Beijing, Haidian District Cheng Fu Road 298, founder building, 5 floor Patentee before: PEKING UNIVERSITY FOUNDER GROUP Co.,Ltd. Patentee before: Peking University Patentee before: FOUNDER INFORMATION INDUSTRY HOLDINGS Co.,Ltd. Patentee before: BEIJING FOUNDER ELECTRONICS Co.,Ltd. |
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Effective date of registration: 20220921 Address after: 3007, Hengqin international financial center building, No. 58, Huajin street, Hengqin new area, Zhuhai, Guangdong 519031 Patentee after: New founder holdings development Co.,Ltd. Patentee after: Peking University Patentee after: BEIJING FOUNDER ELECTRONICS Co.,Ltd. Address before: 100871, Beijing, Haidian District Cheng Fu Road 298, founder building, 9 floor Patentee before: PEKING UNIVERSITY FOUNDER GROUP Co.,Ltd. Patentee before: Peking University Patentee before: PKU FOUNDER INFORMATION INDUSTRY GROUP CO.,LTD. Patentee before: BEIJING FOUNDER ELECTRONICS Co.,Ltd. |
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