SG120173A1 - Methods and apparatus for watermarking digital data - Google Patents
Methods and apparatus for watermarking digital dataInfo
- Publication number
- SG120173A1 SG120173A1 SG200404492A SG200404492A SG120173A1 SG 120173 A1 SG120173 A1 SG 120173A1 SG 200404492 A SG200404492 A SG 200404492A SG 200404492 A SG200404492 A SG 200404492A SG 120173 A1 SG120173 A1 SG 120173A1
- Authority
- SG
- Singapore
- Prior art keywords
- methods
- digital data
- watermarking digital
- watermarking
- data
- Prior art date
Links
Classifications
-
- 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
- G06T1/0042—Fragile watermarking, e.g. so as to detect tampering
-
- 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
- G06T2201/0051—Embedding of the watermark in the spatial domain
-
- 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
- G06T2201/0061—Embedding of the watermark in each block of the image, e.g. segmented watermarking
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Image Processing (AREA)
- Editing Of Facsimile Originals (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG200404492A SG120173A1 (en) | 2004-08-17 | 2004-08-17 | Methods and apparatus for watermarking digital data |
DE200560002696 DE602005002696T2 (de) | 2004-08-17 | 2005-08-10 | Erkennung von Änderungen in digitalen Daten mittels empfindlichen Wasserzeichens |
EP20050017388 EP1628257B1 (de) | 2004-08-17 | 2005-08-10 | Erkennung von Änderungen in digitalen Daten mittels empfindlichen Wasserzeichens |
JP2005236834A JP4696777B2 (ja) | 2004-08-17 | 2005-08-17 | デジタルデータにウォータマークを付す方法及び装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG200404492A SG120173A1 (en) | 2004-08-17 | 2004-08-17 | Methods and apparatus for watermarking digital data |
Publications (1)
Publication Number | Publication Date |
---|---|
SG120173A1 true SG120173A1 (en) | 2006-03-28 |
Family
ID=35106958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200404492A SG120173A1 (en) | 2004-08-17 | 2004-08-17 | Methods and apparatus for watermarking digital data |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1628257B1 (de) |
JP (1) | JP4696777B2 (de) |
DE (1) | DE602005002696T2 (de) |
SG (1) | SG120173A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7986441B2 (en) | 2007-04-04 | 2011-07-26 | Wong Technologies L.L.C. | Embedding watermark into halftone image with low distortion using parity values for overlapping groups of candidate sites |
CN102461066B (zh) * | 2009-05-21 | 2015-09-09 | 数字标记公司 | 鉴别内容信号的方法 |
JP6401290B2 (ja) | 2014-04-01 | 2018-10-10 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | 多層構造化コーディングユニットのデータ隠蔽のための方法および装置 |
CN110611784B (zh) * | 2019-10-17 | 2021-07-23 | 江苏省水利科学研究院 | 一种可防篡改的多摄像头记录仪的拍摄存储方法 |
CN114511437B (zh) * | 2022-04-19 | 2022-07-12 | 山东科技大学 | 基于参考矩阵和lsb替换的水印嵌入和图像自恢复方法 |
CN114693500B (zh) * | 2022-05-31 | 2022-08-23 | 山东科技大学 | 一种用于篡改检测和自恢复的量子图像水印方法 |
CN117057971B (zh) * | 2023-10-07 | 2023-12-29 | 湖北微模式科技发展有限公司 | 一种基于亮度收缩校准的jpeg图像半脆弱水印算法及装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2325765A (en) * | 1997-04-07 | 1998-12-02 | Ibm | Data hiding and detection |
EP0967803A2 (de) * | 1998-06-24 | 1999-12-29 | Nec Corporation | Robuste digitale Wasserzeichen |
US6275599B1 (en) * | 1998-08-28 | 2001-08-14 | International Business Machines Corporation | Compressed image authentication and verification |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4220661B2 (ja) * | 2000-07-21 | 2009-02-04 | 興和株式会社 | 電子文書改竄検出方法及びその装置 |
US6879703B2 (en) * | 2001-01-10 | 2005-04-12 | Trustees Of Columbia University Of The City Of New York | Method and apparatus for watermarking images |
KR100426305B1 (ko) * | 2001-11-27 | 2004-04-08 | 한국전자통신연구원 | 웨이블릿 기반에서 블라인드 방식을 이용한 디지털워터마크 삽입/추출장치 및 방법 |
-
2004
- 2004-08-17 SG SG200404492A patent/SG120173A1/en unknown
-
2005
- 2005-08-10 DE DE200560002696 patent/DE602005002696T2/de active Active
- 2005-08-10 EP EP20050017388 patent/EP1628257B1/de not_active Expired - Fee Related
- 2005-08-17 JP JP2005236834A patent/JP4696777B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2325765A (en) * | 1997-04-07 | 1998-12-02 | Ibm | Data hiding and detection |
EP0967803A2 (de) * | 1998-06-24 | 1999-12-29 | Nec Corporation | Robuste digitale Wasserzeichen |
US6275599B1 (en) * | 1998-08-28 | 2001-08-14 | International Business Machines Corporation | Compressed image authentication and verification |
Also Published As
Publication number | Publication date |
---|---|
EP1628257A1 (de) | 2006-02-22 |
JP4696777B2 (ja) | 2011-06-08 |
DE602005002696D1 (de) | 2007-11-15 |
EP1628257B1 (de) | 2007-10-03 |
JP2006081169A (ja) | 2006-03-23 |
DE602005002696T2 (de) | 2008-07-17 |
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