GB9815300D0 - A method and apparatus for electronic watermarking - Google Patents

A method and apparatus for electronic watermarking

Info

Publication number
GB9815300D0
GB9815300D0 GBGB9815300.0A GB9815300A GB9815300D0 GB 9815300 D0 GB9815300 D0 GB 9815300D0 GB 9815300 A GB9815300 A GB 9815300A GB 9815300 D0 GB9815300 D0 GB 9815300D0
Authority
GB
United Kingdom
Prior art keywords
electronic watermarking
watermarking
electronic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB9815300.0A
Other versions
GB2339656A (en
GB2339656B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TURNER LAURENCE F
Original Assignee
TURNER LAURENCE F
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TURNER LAURENCE F filed Critical TURNER LAURENCE F
Priority to GB9815300A priority Critical patent/GB2339656B/en
Publication of GB9815300D0 publication Critical patent/GB9815300D0/en
Priority to PCT/GB1999/002265 priority patent/WO2000004501A1/en
Priority to AU49216/99A priority patent/AU4921699A/en
Publication of GB2339656A publication Critical patent/GB2339656A/en
Application granted granted Critical
Publication of GB2339656B publication Critical patent/GB2339656B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/16—Program or content traceability, e.g. by watermarking
    • 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
    • H04N1/32203—Spatial or amplitude domain methods
    • 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
    • H04N1/32203—Spatial or amplitude domain methods
    • H04N1/32219—Spatial or amplitude domain methods involving changing the position of selected pixels, e.g. word shifting, or involving modulating the size of image components, e.g. of characters
    • 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
    • H04N1/32203—Spatial or amplitude domain methods
    • H04N1/32261—Spatial or amplitude domain methods in binary data
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Technology Law (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • General Engineering & Computer Science (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
GB9815300A 1998-07-14 1998-07-14 electronic watermarking Expired - Fee Related GB2339656B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9815300A GB2339656B (en) 1998-07-14 1998-07-14 electronic watermarking
PCT/GB1999/002265 WO2000004501A1 (en) 1998-07-14 1999-07-14 Electronic watermarking
AU49216/99A AU4921699A (en) 1998-07-14 1999-07-14 Electronic watermarking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9815300A GB2339656B (en) 1998-07-14 1998-07-14 electronic watermarking

Publications (3)

Publication Number Publication Date
GB9815300D0 true GB9815300D0 (en) 1998-09-09
GB2339656A GB2339656A (en) 2000-02-02
GB2339656B GB2339656B (en) 2003-05-21

Family

ID=10835521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9815300A Expired - Fee Related GB2339656B (en) 1998-07-14 1998-07-14 electronic watermarking

Country Status (3)

Country Link
AU (1) AU4921699A (en)
GB (1) GB2339656B (en)
WO (1) WO2000004501A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000099501A (en) * 1998-09-17 2000-04-07 Internatl Business Mach Corp <Ibm> Method and system for padding information into document data
US20030145206A1 (en) * 2002-01-25 2003-07-31 Jack Wolosewicz Document authentication and verification
US7644281B2 (en) 2004-09-27 2010-01-05 Universite De Geneve Character and vector graphics watermark for structured electronic documents security
CN102096787B (en) * 2009-12-14 2013-06-05 南京信息工程大学 Method and device for hiding information based on word2007 text segmentation
CN109558705A (en) * 2018-12-10 2019-04-02 万兴科技股份有限公司 Watermark Tiling methods, device, computer equipment and storage medium based on PDF

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5467447A (en) * 1990-07-24 1995-11-14 Vogel; Peter S. Document marking system employing context-sensitive embedded marking codes
US5953415A (en) * 1996-03-25 1999-09-14 Sun Microsystems, Inc. Fingerprinting plain text information

Also Published As

Publication number Publication date
WO2000004501A1 (en) 2000-01-27
GB2339656A (en) 2000-02-02
GB2339656B (en) 2003-05-21
AU4921699A (en) 2000-02-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee