GB0424227D0 - Encoding and detecting apparatus - Google Patents

Encoding and detecting apparatus

Info

Publication number
GB0424227D0
GB0424227D0 GB0424227A GB0424227A GB0424227D0 GB 0424227 D0 GB0424227 D0 GB 0424227D0 GB 0424227 A GB0424227 A GB 0424227A GB 0424227 A GB0424227 A GB 0424227A GB 0424227 D0 GB0424227 D0 GB 0424227D0
Authority
GB
United Kingdom
Prior art keywords
encoding
detecting apparatus
detecting
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.)
Withdrawn
Application number
GB0424227A
Other versions
GB2419765A (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.)
Sony Europe Ltd
Original Assignee
Sony United Kingdom Ltd
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 Sony United Kingdom Ltd filed Critical Sony United Kingdom Ltd
Priority to GB0424227A priority Critical patent/GB2419765A/en
Publication of GB0424227D0 publication Critical patent/GB0424227D0/en
Publication of GB2419765A publication Critical patent/GB2419765A/en
Withdrawn legal-status Critical Current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
    • G06T1/0028—Adaptive watermarking, e.g. Human Visual System [HVS]-based watermarking
    • 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
    • G06T2201/0052—Embedding of the watermark in the frequency 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
    • G06T2201/0202—Image watermarking whereby the quality of watermarked images is measured; Measuring quality or performance of watermarking methods; Balancing between quality and robustness

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)
GB0424227A 2004-11-01 2004-11-01 Image watermarking by forming weighted code word coefficients in a down-sampled transform domain Withdrawn GB2419765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0424227A GB2419765A (en) 2004-11-01 2004-11-01 Image watermarking by forming weighted code word coefficients in a down-sampled transform domain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0424227A GB2419765A (en) 2004-11-01 2004-11-01 Image watermarking by forming weighted code word coefficients in a down-sampled transform domain

Publications (2)

Publication Number Publication Date
GB0424227D0 true GB0424227D0 (en) 2004-12-01
GB2419765A GB2419765A (en) 2006-05-03

Family

ID=33515908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0424227A Withdrawn GB2419765A (en) 2004-11-01 2004-11-01 Image watermarking by forming weighted code word coefficients in a down-sampled transform domain

Country Status (1)

Country Link
GB (1) GB2419765A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6633654B2 (en) * 2000-06-19 2003-10-14 Digimarc Corporation Perceptual modeling of media signals based on local contrast and directional edges
US6674876B1 (en) * 2000-09-14 2004-01-06 Digimarc Corporation Watermarking in the time-frequency domain

Also Published As

Publication number Publication date
GB2419765A (en) 2006-05-03

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)