CN1170254C - 光水印 - Google Patents

光水印 Download PDF

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Publication number
CN1170254C
CN1170254C CNB008020361A CN00802036A CN1170254C CN 1170254 C CN1170254 C CN 1170254C CN B008020361 A CNB008020361 A CN B008020361A CN 00802036 A CN00802036 A CN 00802036A CN 1170254 C CN1170254 C CN 1170254C
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CN
China
Prior art keywords
watermark
layer
dot pattern
sub
image target
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 - Fee Related
Application number
CNB008020361A
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English (en)
Chinese (zh)
Other versions
CN1372677A (zh
Inventor
黄晟
吴健康
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 PTD Ltd
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TRUSTCOPY PTD Ltd
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Publication date
Application filed by TRUSTCOPY PTD Ltd filed Critical TRUSTCOPY PTD Ltd
Publication of CN1372677A publication Critical patent/CN1372677A/zh
Application granted granted Critical
Publication of CN1170254C publication Critical patent/CN1170254C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
  • Holo Graphy (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Credit Cards Or The Like (AREA)
CNB008020361A 2000-09-15 2000-09-15 光水印 Expired - Fee Related CN1170254C (zh)

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
CN1372677A CN1372677A (zh) 2002-10-02
CN1170254C true CN1170254C (zh) 2004-10-06

Family

ID=20428862

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB008020361A Expired - Fee Related CN1170254C (zh) 2000-09-15 2000-09-15 光水印

Country Status (8)

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

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US8199969B2 (en) 2008-12-17 2012-06-12 Digimarc Corporation Out of phase digital watermarking in two chrominance directions
US9117268B2 (en) 2008-12-17 2015-08-25 Digimarc Corporation Out of phase digital watermarking in two chrominance directions
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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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US10826900B1 (en) * 2014-12-31 2020-11-03 Morphotrust Usa, Llc Machine-readable verification of digital identifications
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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
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CN111476703B (zh) * 2020-04-09 2024-04-26 北京印实科技有限公司 一种光学水印的制作方法
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
US20020054680A1 (en) 2002-05-09
EP1317734A1 (en) 2003-06-11
AU785178B2 (en) 2006-10-12
US7366301B2 (en) 2008-04-29
DE60018222D1 (de) 2005-03-24
CN1372677A (zh) 2002-10-02
AU7569000A (en) 2002-03-26
WO2002023481A1 (en) 2002-03-21
JP2003530737A (ja) 2003-10-14
DE60018222T2 (de) 2006-01-12
EP1317734B1 (en) 2005-02-16
JP4373045B2 (ja) 2009-11-25
ATE289437T1 (de) 2005-03-15

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C06 Publication
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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Metso Shenzhou Technology (Beijing) Co., Ltd.

Assignor: Trustcopy Ptd Ltd.

Contract fulfillment period: From January 20, 2005 to January 19, 2015

Contract record no.: 051000030024

Denomination of invention: Light watermark

Granted publication date: 20041006

License type: Exclusive license

Record date: 20050203

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2005.1.20 TO 2015.1.19

Name of requester: ZHUOXIN SHENZHOU SCIENCE AND TECHNOLOGY (BEIJING)

Effective date: 20050203

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20041006

Termination date: 20170915

CF01 Termination of patent right due to non-payment of annual fee