WO2009047833A1 - Electronic watermark embedding method, electronic watermark embedding apparatus, program, and computer-readable recording medium - Google Patents
Electronic watermark embedding method, electronic watermark embedding apparatus, program, and computer-readable recording medium Download PDFInfo
- Publication number
- WO2009047833A1 WO2009047833A1 PCT/JP2007/069665 JP2007069665W WO2009047833A1 WO 2009047833 A1 WO2009047833 A1 WO 2009047833A1 JP 2007069665 W JP2007069665 W JP 2007069665W WO 2009047833 A1 WO2009047833 A1 WO 2009047833A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electronic watermark
- watermark embedding
- image data
- embedded
- data
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
- H04N1/32154—Transform domain methods
- H04N1/32165—Transform domain methods using cosine transforms
Abstract
An electronic watermark embedding method in which the processing speed of when electronic watermark information is embedded in image data is improved, deterioration of the image data after the electronic watermark information is embedded is reduced, and the electronic watermark information is embedded in JPEG compressed image data. The electronic watermark embedding method comprises a first step of generating DCT data on an electronic watermark pattern image produced by converting the electronic watermark information into a pattern image; a second step of generating DCT data in the JPEG compressed image data by performing entropy decoding and dequantization of the JPEG compressed image data in which the electronic watermark information is to be embedded; a third step of generating DCT data by combining the DCT data on the electronic watermark pattern image generated in the first step and the DCT data in the JPEG compressed image data generated in the second step; and a fourth step of generating the JPEG compressed image data in which the electronic watermark information is embedded by performing quantization and entropy coding of the DCT data generated in the third step.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2007/069665 WO2009047833A1 (en) | 2007-10-09 | 2007-10-09 | Electronic watermark embedding method, electronic watermark embedding apparatus, program, and computer-readable recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2007/069665 WO2009047833A1 (en) | 2007-10-09 | 2007-10-09 | Electronic watermark embedding method, electronic watermark embedding apparatus, program, and computer-readable recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009047833A1 true WO2009047833A1 (en) | 2009-04-16 |
Family
ID=40548988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2007/069665 WO2009047833A1 (en) | 2007-10-09 | 2007-10-09 | Electronic watermark embedding method, electronic watermark embedding apparatus, program, and computer-readable recording medium |
Country Status (1)
Country | Link |
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WO (1) | WO2009047833A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101835049A (en) * | 2010-05-24 | 2010-09-15 | 上海师范大学 | Generating and authenticating method of self-embedded digital watermark of JPEG (Joint Photographic Experts Group) image |
CN103177268A (en) * | 2013-04-19 | 2013-06-26 | 海南大学 | Intelligent texture anti-counterfeiting method based on DCT (Discrete Cosine Transform) transformation |
CN107358571A (en) * | 2017-07-13 | 2017-11-17 | 司马大大(北京)智能系统有限公司 | Watermark embedding method and device |
CN108810016A (en) * | 2018-07-11 | 2018-11-13 | 长春大学 | Terminal access authentication method based on quantum cryptography watermark |
CN109729233A (en) * | 2018-11-29 | 2019-05-07 | 东软集团股份有限公司 | Information concealing method, device, storage medium and electronic equipment based on image |
WO2019225903A1 (en) * | 2018-05-23 | 2019-11-28 | 세종대학교 산학협력단 | Method and device for watermark-based image integrity verification |
WO2023065604A1 (en) * | 2021-10-20 | 2023-04-27 | 北京优幕科技有限责任公司 | Image processing method and apparatus |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007053687A (en) * | 2005-08-19 | 2007-03-01 | Nippon Telegr & Teleph Corp <Ntt> | Electronic watermark embedding method, device, and program |
JP2007221387A (en) * | 2006-02-15 | 2007-08-30 | Fujifilm Software Co Ltd | Data inserting device and method, and image compressing coding device and method |
-
2007
- 2007-10-09 WO PCT/JP2007/069665 patent/WO2009047833A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007053687A (en) * | 2005-08-19 | 2007-03-01 | Nippon Telegr & Teleph Corp <Ntt> | Electronic watermark embedding method, device, and program |
JP2007221387A (en) * | 2006-02-15 | 2007-08-30 | Fujifilm Software Co Ltd | Data inserting device and method, and image compressing coding device and method |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101835049A (en) * | 2010-05-24 | 2010-09-15 | 上海师范大学 | Generating and authenticating method of self-embedded digital watermark of JPEG (Joint Photographic Experts Group) image |
CN103177268A (en) * | 2013-04-19 | 2013-06-26 | 海南大学 | Intelligent texture anti-counterfeiting method based on DCT (Discrete Cosine Transform) transformation |
CN107358571A (en) * | 2017-07-13 | 2017-11-17 | 司马大大(北京)智能系统有限公司 | Watermark embedding method and device |
WO2019225903A1 (en) * | 2018-05-23 | 2019-11-28 | 세종대학교 산학협력단 | Method and device for watermark-based image integrity verification |
CN108810016A (en) * | 2018-07-11 | 2018-11-13 | 长春大学 | Terminal access authentication method based on quantum cryptography watermark |
CN109729233A (en) * | 2018-11-29 | 2019-05-07 | 东软集团股份有限公司 | Information concealing method, device, storage medium and electronic equipment based on image |
CN109729233B (en) * | 2018-11-29 | 2020-09-25 | 东软集团股份有限公司 | Information hiding method and device based on image, storage medium and electronic equipment |
WO2023065604A1 (en) * | 2021-10-20 | 2023-04-27 | 北京优幕科技有限责任公司 | Image processing method and apparatus |
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