DE60018222D1 - Optisches Wasserzeichen - Google Patents

Optisches Wasserzeichen

Info

Publication number
DE60018222D1
DE60018222D1 DE60018222T DE60018222T DE60018222D1 DE 60018222 D1 DE60018222 D1 DE 60018222D1 DE 60018222 T DE60018222 T DE 60018222T DE 60018222 T DE60018222 T DE 60018222T DE 60018222 D1 DE60018222 D1 DE 60018222D1
Authority
DE
Germany
Prior art keywords
watermark
optical watermark
layered
decoder
optical
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.)
Expired - Lifetime
Application number
DE60018222T
Other languages
English (en)
Other versions
DE60018222T2 (de
Inventor
Sheng Huang
Jian Kang Wu
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.)
Trustcopy Pte Ltd
Original Assignee
Trustcopy Pte 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 Trustcopy Pte Ltd filed Critical Trustcopy Pte Ltd
Application granted granted Critical
Publication of DE60018222D1 publication Critical patent/DE60018222D1/de
Publication of DE60018222T2 publication Critical patent/DE60018222T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G06T1/005—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
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0051—Embedding of the watermark in the spatial domain
DE60018222T 2000-09-15 2000-09-15 Optisches Wasserzeichen Expired - Lifetime DE60018222T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG2000/000147 WO2002023481A1 (en) 2000-09-15 2000-09-15 Optical watermark

Publications (2)

Publication Number Publication Date
DE60018222D1 true DE60018222D1 (de) 2005-03-24
DE60018222T2 DE60018222T2 (de) 2006-01-12

Family

ID=20428862

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60018222T Expired - Lifetime DE60018222T2 (de) 2000-09-15 2000-09-15 Optisches Wasserzeichen

Country Status (8)

Country Link
US (1) US7366301B2 (de)
EP (1) EP1317734B1 (de)
JP (1) JP4373045B2 (de)
CN (1) CN1170254C (de)
AT (1) ATE289437T1 (de)
AU (1) AU785178B2 (de)
DE (1) DE60018222T2 (de)
WO (1) WO2002023481A1 (de)

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US8792674B2 (en) 2010-10-11 2014-07-29 Graphic Security Systems Corporation Method for encoding and simultaneously decoding images having multiple color components
WO2012057459A1 (ko) * 2010-10-26 2012-05-03 Park Kwang-Don 랜덤형 다층 인식체 및 이를 이용한 인증시스템
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CN103448402B (zh) * 2012-05-28 2016-06-22 广州市人民印刷厂股份有限公司 开锁式防伪方法
CN104428783B (zh) * 2012-05-30 2018-04-06 利达国际商标有限公司 认证设备及方法
CN103065101A (zh) * 2012-12-14 2013-04-24 北京思特奇信息技术股份有限公司 一种文档防伪方法
CN104228380B (zh) * 2013-06-21 2016-12-28 广州市人民印刷厂股份有限公司 隐形开锁式防伪方法
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CN109040761A (zh) * 2018-09-17 2018-12-18 俞群爱 一种带有加密水印的监控上墙系统
EP3686027B1 (de) 2019-01-27 2021-07-14 U-NICA Systems AG Verfahren zum drucken von authentifizierungskennzeichen mit einem amplitudenmodulierten rasterdruck
CN113630606B (zh) * 2020-05-07 2024-04-19 百度在线网络技术（北京）有限公司 视频水印处理方法、装置、电子设备及存储介质
JP2023003627A (ja) * 2021-06-24 2023-01-17 シヤチハタ株式会社 コンピュータデバイス、方法およびコンピュータプログラム
CN115330583A (zh) * 2022-09-19 2022-11-11 景德镇陶瓷大学 一种基于cmyk图像的水印模型训练方法及装置

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Also Published As

Publication number Publication date
WO2002023481A1 (en) 2002-03-21
EP1317734A1 (de) 2003-06-11
DE60018222T2 (de) 2006-01-12
AU785178B2 (en) 2006-10-12
AU7569000A (en) 2002-03-26
US7366301B2 (en) 2008-04-29
CN1372677A (zh) 2002-10-02
EP1317734B1 (de) 2005-02-16
CN1170254C (zh) 2004-10-06
ATE289437T1 (de) 2005-03-15
JP2003530737A (ja) 2003-10-14
JP4373045B2 (ja) 2009-11-25
US20020054680A1 (en) 2002-05-09

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Legal Events

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Representative=s name: KUDLEK & GRUNERT PATENTANWAELTE PARTNERSCHAFT, 803