KR100740792B1 - 워터마크 검출 방법 및 워터마크 검출 장치 - Google Patents
워터마크 검출 방법 및 워터마크 검출 장치 Download PDFInfo
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- KR100740792B1 KR100740792B1 KR1020017006641A KR20017006641A KR100740792B1 KR 100740792 B1 KR100740792 B1 KR 100740792B1 KR 1020017006641 A KR1020017006641 A KR 1020017006641A KR 20017006641 A KR20017006641 A KR 20017006641A KR 100740792 B1 KR100740792 B1 KR 100740792B1
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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
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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
- G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
- G06T1/0071—Robust watermarking, e.g. average attack or collusion attack resistant using multiple or alternating watermarks
-
- 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
- G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
- G06T1/0064—Geometric transfor invariant watermarking, e.g. affine transform invariant
-
- 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
-
- 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
- H04N1/32288—Multiple embedding, e.g. cocktail embedding, or redundant embedding, e.g. repeating the additional information at a plurality of locations in the image
- H04N1/32293—Repeating the additional information in a regular pattern
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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
- H04N1/32352—Controlling detectability or arrangements to facilitate detection or retrieval of the embedded information, e.g. using markers
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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
- G06T2201/0065—Extraction of an embedded watermark; Reliable detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—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
- H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N2201/3225—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document
- H04N2201/3233—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document of authentication information, e.g. digital signature, watermark
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—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
- H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N2201/3269—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs
- H04N2201/327—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs which are undetectable to the naked eye, e.g. embedded codes
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Editing Of Facsimile Originals (AREA)
- Image Processing (AREA)
- Television Systems (AREA)
- Image Analysis (AREA)
Abstract
Description
Claims (8)
- 서스펙트 이미지(suspect image)(Q)에서 워터마크(W)를 검출하는 방법에 있어서,상기 서스펙트 이미지가 주기적으로 반복된 임베딩된 데이터 패턴을 포함하는지를 검출하는 단계(61-64)와,상기 데이터 패턴의 주기성(periodicity)을 결정하는 단계(6)와,소정의 주기성을 갖는 소정의 워터마크(W)를 적용하는 단계와,처리된 서스펙트 이미지의 상기 데이터 패턴의 상기 주기성과 처리된 소정의 워터마크의 상기 주기성이 매칭되도록 상기 서스펙트 이미지 및/또는 상기 소정의 워터마크를 처리하는 단계(9,10)와,상기 처리된 서스펙트 이미지의 상기 데이터 패턴이 상기 처리된 소정의 워터마크에 대응하는지를 검출하는 단계(3)와,상기 주기적으로 반복된 데이터 패턴이 임베딩된 워터마크를 표현하는 것으로 결론짓는 단계(65)를 포함하는, 워터마크 검출 방법.
- 삭제
- 제 1 항에 있어서,상기 서스펙트 이미지 및/또는 상기 소정의 워터마크를 처리하는 상기 단계(9 ,10)는 상기 서스펙트 이미지 및/또는 상기 소정의 워터마크를 어파인 변환 연산(affine transform operation)하는 단계를 포함하는, 워터마크 검출 방법.
- 제 1 항 또는 제 3 항에 있어서,상기 서스펙트 이미지 및/또는 상기 소정의 워터마크를 처리하는 상기 단계(9 ,10)는 미리 결정된 처리 연산들의 유한한 세트에 대해 반복되는, 워터마크 검출 방법.
- 서스펙트 이미지(Q)에서 워터마크(W)를 검출하기 위한 장치에 있어서,상기 서스펙트 이미지가 주기적으로 반복된 임베딩된 데이터 패턴을 포함하는지를 검출하기 위한 수단(61-64)과,상기 데이터 패턴의 주기성을 결정하기 위한 수단(6)과,소정의 주기성을 가지는 소정의 워터마크(W)를 적용하기 위한 수단과,처리된 서스펙트 이미지의 상기 데이터 패턴의 상기 주기성이 처리된 소정의 워터마크의 상기 주기성과 매칭되도록 상기 서스펙트 이미지 및/또는 상기 소정의 워터마크를 처리하기 위한 수단(9,10)과,상기 처리된 서스펙트 이미지의 데이터 패턴이 상기 처리된 소정의 워터마크에 대응하는지를 검출하기 위한 수단(3)과,상기 주기적으로 반복된 데이터 패턴이 임베딩된 워터마크를 표현하는 것으로 결론짓기 위한 수단(65)을 포함하는, 워터마크 검출 장치.
- 삭제
- 제 5 항에 있어서,상기 서스펙트 이미지 및/또는 상기 소정의 워터마크를 처리하기 위한 상기 수단(9, 10)은 상기 서스펙트 이미지 및/또는 상기 소정의 워터마크를 어파인 변환 연산하도록 배열된, 워터마크 검출 장치.
- 제 5 항 또는 제 7 항에 있어서,상기 서스펙트 이미지 및/또는 상기 소정의 워터마크를 처리하기 위한 상기 수단(9, 10)은 미리 결정된 처리 연산들의 유한한 세트에 대해 상기 처리를 반복적으로 실행하도록 배열된, 워터마크 검출 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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EP99203143 | 1999-09-27 | ||
EP99203143.5 | 1999-09-27 |
Publications (2)
Publication Number | Publication Date |
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KR20010089513A KR20010089513A (ko) | 2001-10-06 |
KR100740792B1 true KR100740792B1 (ko) | 2007-07-20 |
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ID=8240678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020017006641A Expired - Lifetime KR100740792B1 (ko) | 1999-09-27 | 2000-09-15 | 워터마크 검출 방법 및 워터마크 검출 장치 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6671388B1 (ko) |
EP (1) | EP1133755B1 (ko) |
JP (1) | JP4257059B2 (ko) |
KR (1) | KR100740792B1 (ko) |
CN (1) | CN1269074C (ko) |
WO (1) | WO2001024113A1 (ko) |
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WO1997043736A1 (en) * | 1996-05-16 | 1997-11-20 | Digimarc Corporation | Computer system linked by using information in data objects |
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US5636292C1 (en) | 1995-05-08 | 2002-06-18 | Digimarc Corp | Steganography methods employing embedded calibration data |
US6229924B1 (en) * | 1996-05-16 | 2001-05-08 | Digimarc Corporation | Method and apparatus for watermarking video images |
US5835639A (en) * | 1996-12-18 | 1998-11-10 | Eastman Kodak Company | Method for detecting rotation and magnification in images |
JP4064506B2 (ja) * | 1997-09-17 | 2008-03-19 | パイオニア株式会社 | 電子透かし重畳方法及び検出方法並びに装置 |
US5949055A (en) * | 1997-10-23 | 1999-09-07 | Xerox Corporation | Automatic geometric image transformations using embedded signals |
US6263087B1 (en) * | 1998-06-26 | 2001-07-17 | Signafy, Inc. | Method of encoding bits in a signal |
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- 2000-09-15 JP JP2001526807A patent/JP4257059B2/ja not_active Expired - Lifetime
- 2000-09-15 KR KR1020017006641A patent/KR100740792B1/ko not_active Expired - Lifetime
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KR20010089513A (ko) | 2001-10-06 |
EP1133755B1 (en) | 2015-08-26 |
CN1322331A (zh) | 2001-11-14 |
EP1133755A1 (en) | 2001-09-19 |
JP2003510931A (ja) | 2003-03-18 |
WO2001024113A1 (en) | 2001-04-05 |
CN1269074C (zh) | 2006-08-09 |
JP4257059B2 (ja) | 2009-04-22 |
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