DE602004011465D1 - Watermarking von Bildern - Google Patents

Watermarking von Bildern

Info

Publication number
DE602004011465D1
DE602004011465D1 DE602004011465T DE602004011465T DE602004011465D1 DE 602004011465 D1 DE602004011465 D1 DE 602004011465D1 DE 602004011465 T DE602004011465 T DE 602004011465T DE 602004011465 T DE602004011465 T DE 602004011465T DE 602004011465 D1 DE602004011465 D1 DE 602004011465D1
Authority
DE
Germany
Prior art keywords
coefficients
quantization table
dct
quantized
additional information
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.)
Active
Application number
DE602004011465T
Other languages
English (en)
Other versions
DE602004011465T2 (de
Inventor
Hisashi Inoue
Kenichi Noridomi
Masataka Ejima
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE602004011465D1 publication Critical patent/DE602004011465D1/de
Application granted granted Critical
Publication of DE602004011465T2 publication Critical patent/DE602004011465T2/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
    • G06T1/0057—Compression invariant 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
    • G06T2201/0053—Embedding of the watermark in the coding stream, possibly without decoding; Embedding of the watermark in the compressed domain

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)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Television Signal Processing For Recording (AREA)
DE602004011465T 2003-12-26 2004-12-23 Watermarking von Bildern Active DE602004011465T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003433157 2003-12-26
JP2003433157 2003-12-26

Publications (2)

Publication Number Publication Date
DE602004011465D1 true DE602004011465D1 (de) 2008-03-13
DE602004011465T2 DE602004011465T2 (de) 2009-01-29

Family

ID=34616816

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004011465T Active DE602004011465T2 (de) 2003-12-26 2004-12-23 Watermarking von Bildern

Country Status (5)

Country Link
US (1) US7583850B2 (de)
EP (1) EP1555630B1 (de)
CN (1) CN100474884C (de)
AT (1) ATE385004T1 (de)
DE (1) DE602004011465T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8588295B2 (en) 2009-03-09 2013-11-19 Mediatek Inc. Methods and electronic devices for quantization and de-quantization
CN105869104B (zh) * 2016-04-06 2019-04-09 广州市幸福网络技术有限公司 基于图片内容的对jpeg压缩稳定的数字水印方法及系统
JP6821183B2 (ja) * 2017-02-23 2021-01-27 株式会社シキノハイテック 画像復号化装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6064764A (en) * 1998-03-30 2000-05-16 Seiko Epson Corporation Fragile watermarks for detecting tampering in images
JP2000151973A (ja) 1998-11-10 2000-05-30 Canon Inc 情報処理装置およびその方法、並びに、記憶媒体
JP3098513B1 (ja) * 1999-04-14 2000-10-16 インターナショナル・ビジネス・マシーンズ・コーポレ−ション 改変判定装置およびその方法
JP2001008019A (ja) * 1999-06-18 2001-01-12 Canon Inc 画像処理装置およびその方法
US6621866B1 (en) 2000-01-28 2003-09-16 Thomson Licensing S.A. Method for inserting a visual element into an MPEG bit stream
JP2002330279A (ja) 2001-05-07 2002-11-15 Techno Mathematical Co Ltd 画像へのデータ埋め込み方法及び当該データの抽出方法

Also Published As

Publication number Publication date
US20050141748A1 (en) 2005-06-30
CN100474884C (zh) 2009-04-01
EP1555630A2 (de) 2005-07-20
EP1555630A3 (de) 2006-02-08
ATE385004T1 (de) 2008-02-15
US7583850B2 (en) 2009-09-01
DE602004011465T2 (de) 2009-01-29
CN1638476A (zh) 2005-07-13
EP1555630B1 (de) 2008-01-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP